2a553c CDC Volume 3 Ure
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Using precition guided munitions, cruise missiles, or gunships is an example of?
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Denial
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Disruption
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Physical attack
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Support systems
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About This Quiz
2a553c cdc volume #3 URE questions. For 5 level upgrading on EOC
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- 2.
An effective IRCM tactic by using the natural environment is
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Ejection of flares.
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Maneuvering into the sun.
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Reducing the engine power setting.
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Introducing smoke into engine exhaust.
Correct Answer
A. Maneuvering into the sun.Explanation
Maneuvering into the sun is an effective IRCM tactic because it utilizes the natural environment to deceive heat-seeking missiles. By positioning the aircraft between the sun and the missile, the intense heat from the sun can confuse the missile's infrared sensors, making it more difficult for the missile to track and target the aircraft. This tactic takes advantage of the sun's brightness and heat to create a diversion and increase the chances of evading the missile.Rate this question:
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- 3.
The processes and actions necessary to protect your equipment from the effects of an electromagnetic pulse produced by an atomic blast is best described as
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Emissions control.
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Electromagnetic hardening.
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Electromagnetic compatibility.
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Early warning frequency deconfliction.
Correct Answer
A. Electromagnetic hardening.Explanation
Electromagnetic hardening refers to the processes and actions taken to protect equipment from the effects of an electromagnetic pulse (EMP) produced by an atomic blast. This involves designing and implementing measures to shield and safeguard equipment against the intense electromagnetic radiation and energy released during an EMP event. It includes techniques such as using shielding materials, grounding, and surge protection to minimize the impact of the EMP on the equipment.Rate this question:
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- 4.
What are EW reconnaissance crews called?
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Crows.
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Ferrets.
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Sparks.
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Ravens.
Correct Answer
A. Ravens.Explanation
The correct answer is Ravens. EW reconnaissance crews are commonly referred to as Ravens.Rate this question:
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- 5.
What component of EW involves the use of the electromagnetic, directed energy, or antiradiation weapons to attack personnel, facilities, or equiptment?
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EA
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ES
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EP
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ECCM
Correct Answer
A. EAExplanation
EA stands for Electronic Attack, which involves the use of electromagnetic, directed energy, or antiradiation weapons to attack personnel, facilities, or equipment. This component of EW focuses on disrupting, deceiving, or denying enemy use of the electromagnetic spectrum, causing interference or damage to their systems.Rate this question:
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- 6.
Normal suppresion of enemy air defence targets include radars for?
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Acquisition, and antiaircraft artillery only.
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Acquisition, and antiaircraft artillery, and sam only
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Acquisition, and early warning/ground controlled intercept and sam only
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Acquisition, antiaircraft artillery, early warning/ground controlled intercept and sam only
Correct Answer
A. Acquisition, antiaircraft artillery, early warning/ground controlled intercept and sam onlyExplanation
The correct answer is acquisition, antiaircraft artillery, early warning/ground controlled intercept, and SAM only. Normal suppression of enemy air defense targets involves targeting and neutralizing various components of the enemy's air defense system. This includes targeting and disabling their radars for acquisition purposes, as well as their antiaircraft artillery, early warning/ground controlled intercept systems, and surface-to-air missiles (SAMs). By neutralizing these components, the attacking force can gain air superiority and reduce the effectiveness of the enemy's air defense capabilities.Rate this question:
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- 7.
What aircraft is used to jam communications of the enemy’s C2 network?
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E–6B.
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EF–111.
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F–16CJ.
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EC–130H.
Correct Answer
A. EC–130H.Explanation
The EC-130H is an aircraft specifically designed for electronic warfare and is used to jam communications of the enemy's C2 network. It is equipped with advanced electronic jamming systems that can disrupt and disable enemy communication systems, making it an effective tool for disrupting enemy command and control operations. The other options, E-6B, EF-111, and F-16CJ, are not specifically designed for jamming communications and do not have the same capabilities as the EC-130H in this regard.Rate this question:
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- 8.
Which military frequency band designator denotes a frequency range higher than the others?
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Echo.
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Golf.
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Charlie.
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Foxtrot.
Correct Answer
A. Golf.Explanation
The military frequency band designator "Golf" denotes a frequency range higher than the others. This means that it represents a range of frequencies that is higher in value compared to the frequency ranges represented by the designators "Echo," "Charlie," and "Foxtrot."Rate this question:
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- 9.
What important tactic must be performed with flare deployment to effectively defeat infrared threats?
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Chaff
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Maneuver.
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Noise jamming.
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Deception jamming.
Correct Answer
A. Maneuver.Explanation
Maneuvering is an important tactic that must be performed with flare deployment to effectively defeat infrared threats. By constantly changing direction and speed, an aircraft can make it difficult for infrared-seeking missiles to track and lock onto it. This evasive maneuvering can help to confuse the missile's heat-seeking sensors and increase the chances of evading the threat.Rate this question:
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- 10.
What IRCM tactic is used to reduce an engine IR signature?
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Ejection of flares.
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Maneuvering into the sun.
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Jamming by an IRCM system.
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Introducing smoke into engine exhaust.
Correct Answer
A. Introducing smoke into engine exhaust.Explanation
Introducing smoke into the engine exhaust is a tactic used to reduce an engine's infrared (IR) signature. By releasing smoke into the exhaust, the hot gases from the engine are mixed with the smoke particles, which helps to obscure the IR signature emitted by the engine. This tactic can make it more difficult for infrared-seeking missiles or other IR detection systems to track and target the aircraft, enhancing its survivability in combat situations.Rate this question:
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- 11.
The steps taken to limit the incidental or accidental emissions from electronic equipment is best described as
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Electronic attack.
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Emissions control.
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Electromagnetic hardening.
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Electronic counter countermeasures.
Correct Answer
A. Emissions control.Explanation
The term "emissions control" refers to the measures or actions taken to limit or reduce the incidental or accidental emissions from electronic equipment. This can include implementing shielding techniques, using filters, or employing other strategies to minimize electromagnetic interference. The other options, such as "electronic attack," "electromagnetic hardening," and "electronic counter countermeasures," do not accurately describe the steps taken to limit emissions, making "emissions control" the most appropriate answer.Rate this question:
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- 12.
) What ELINT equipment is used to determine location of emitters?
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Pulse analyzer.
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Direction finder.
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Spectrum analyzer.
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Panoramic receiver.
Correct Answer
A. Direction finder.Explanation
A direction finder is used in ELINT (Electronic Intelligence) to determine the location of emitters. This equipment helps to identify the direction from which the signals are coming, allowing the user to locate the source of the signals accurately. The other options, such as pulse analyzer, spectrum analyzer, and panoramic receiver, are not specifically designed to determine the location of emitters but serve different purposes in analyzing and monitoring electronic signals.Rate this question:
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- 13.
What type of radar in an air defense network is a lethal threat attacking aircraft?
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Acquisition.
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Height finder.
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Early warning.
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Terminal defense.
Correct Answer
A. Terminal defense.Explanation
The correct answer is Terminal defense. In an air defense network, terminal defense radar is specifically designed to detect and track incoming hostile aircraft in the final phase of their attack. It plays a crucial role in identifying and engaging these threats, making it a lethal component of the network. Acquisition radar is responsible for detecting and tracking targets, height finder radar is used to determine the altitude of targets, and early warning radar detects potential threats at longer ranges.Rate this question:
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- 14.
What component of the RWR selects the mode of operation?
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Scope.
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Signal processor.
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Receiver/amplifier.
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Interface control unit.
Correct Answer
A. Interface control unit.Explanation
The interface control unit is responsible for selecting the mode of operation in the RWR. It acts as a control interface between different components of the system and allows the user to switch between different modes based on the requirements. It provides the necessary commands and signals to the other components, such as the scope, signal processor, and receiver/amplifier, to operate in the selected mode.Rate this question:
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- 15.
What geolocation technique involves solving for the distance that the emitter is away from the receiver?
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Triangulation.
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Interferometry.
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Time of arrival.
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Angle of arrival.
Correct Answer
A. Time of arrival.Explanation
Time of arrival is the geolocation technique that involves solving for the distance that the emitter is away from the receiver. This technique calculates the time it takes for a signal to travel from the emitter to the receiver, and then uses this time to determine the distance between them. By accurately measuring the time of arrival, the geolocation system can calculate the distance and pinpoint the location of the emitter. Triangulation, interferometry, and angle of arrival are other geolocation techniques, but they involve different methods for determining the location and do not directly solve for the distance.Rate this question:
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- 16.
What advantage does deception jammer have over noise jammer?
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Requires less power.
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Requires high power.
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Requires a 100 percent duty cycle.
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Requires a wider bandwidth.
Correct Answer
A. Requires less power.Explanation
The advantage of a deception jammer over a noise jammer is that it requires less power. This means that the deception jammer is more efficient and can operate for longer periods without draining the power source. In contrast, a noise jammer requires high power, which can lead to faster power consumption and the need for more frequent recharging or power supply. Therefore, using a deception jammer can provide a more sustainable and effective solution for jamming signals.Rate this question:
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- 17.
What type deception jamming technique is used at low altitude against missiles?
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Range.
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Azimuth.
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Velocity.
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Terrain bounce.
Correct Answer
A. Terrain bounce.Explanation
Terrain bounce is a type of deception jamming technique used at low altitude against missiles. This technique involves bouncing the radar signal off the terrain to create false targets or confuse the missile's guidance system. By utilizing the natural features of the terrain, such as hills or mountains, the radar signal can be manipulated to create the illusion of multiple targets or hide the true location of the intended target. This can significantly disrupt the missile's ability to accurately track and engage its intended target, increasing the chances of evading the missile successfully.Rate this question:
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- 18.
Electronic support data is not used to produce?
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Signal intellegence
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Ballistic intellegence
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Electronic intellegence
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Communications intellegence
Correct Answer
A. Ballistic intellegenceExplanation
Ballistic intelligence refers to the analysis and interpretation of information related to the flight path and trajectory of projectiles such as missiles or artillery shells. Electronic support data, on the other hand, involves the collection and processing of electronic signals and communications. These two types of intelligence are distinct and serve different purposes. Therefore, electronic support data is not used to produce ballistic intelligence.Rate this question:
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- 19.
What support system provides detection and control of low-level aircraft beyond coverage of the ground-based radars?
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AWACS
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JWCCS
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JSTARS
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ABCCC
Correct Answer
A. AWACSExplanation
AWACS stands for Airborne Warning and Control System. It is an advanced radar system that is mounted on an aircraft and provides detection and control of low-level aircraft beyond the coverage of ground-based radars. AWACS is capable of detecting and tracking aircraft at long ranges and can provide early warning of potential threats. It also has the ability to direct and coordinate air defense operations, making it an essential support system for surveillance and control of airspace.Rate this question:
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- 20.
The point where a radar’s return is stronger than the jamming signal is called the
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Crossover point.
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Point of no return.
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Maximum jamming point.
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Minimum discernible signal point.
Correct Answer
A. Crossover point.Explanation
The crossover point refers to the point at which a radar's return signal becomes stronger than the jamming signal. At this point, the radar is able to detect and discern the target signal from the interference caused by the jamming signal. This is an important threshold as it allows the radar system to effectively identify and track targets amidst jamming attempts.Rate this question:
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- 21.
What area of the aircraft will have least IR signature?
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Plume.
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Engine.
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Skin.
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Engine afterburner.
Correct Answer
A. Skin.Explanation
The skin of the aircraft will have the least infrared (IR) signature. This is because the skin is designed to be heat-resistant and to dissipate heat efficiently, reducing the amount of IR radiation emitted. On the other hand, the plume, engine, and engine afterburner generate a significant amount of heat, resulting in a higher IR signature.Rate this question:
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- 22.
What division of EW involves weapons that use electromagnetic or directed energy as their primary destructive mechanism?
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Electronic attack
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Electronic support
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Electronic detection
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Electronic protection
Correct Answer
A. Electronic attackExplanation
Electronic attack is the division of EW that involves weapons using electromagnetic or directed energy as their primary destructive mechanism. This division focuses on disrupting, denying, or degrading enemy electronic systems, such as communication, radar, or navigation systems. By using electromagnetic or directed energy weapons, electronic attack aims to neutralize or destroy the enemy's electronic capabilities, providing a significant advantage in warfare.Rate this question:
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- 23.
Any disturbance that interrupts, obstructs, degrades, or limits the effective performance of electronics or equipment is best described as
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Electromagnetic pulse.
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Electromagnetic hardening.
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Electronic counter-countermeasures.
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Electromagnetic interference.
Correct Answer
A. Electromagnetic interference.Explanation
Electromagnetic interference refers to any disturbance that hinders or disrupts the proper functioning of electronics or equipment. This interference can be caused by various sources such as electromagnetic radiation from nearby devices, power lines, or radio waves. It can result in signal degradation, data loss, or even complete failure of the affected equipment. Electromagnetic hardening, on the other hand, refers to the process of making electronics resistant to electromagnetic interference. Electronic counter-countermeasures and electromagnetic pulse are not the most suitable descriptions for this type of disturbance.Rate this question:
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- 24.
Deliberate radiation , alteration, suppression, absorption, denial, enhancement, or reflection of electromagnetic energy to misslead the enemy is called?
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Detection
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Deception
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Disruption
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Destruction
Correct Answer
A. DeceptionExplanation
Deception refers to the deliberate use of various techniques such as radiation, alteration, suppression, absorption, denial, enhancement, or reflection of electromagnetic energy to mislead the enemy. This can involve creating false signals, disguising true signals, or manipulating the enemy's perception of the electromagnetic environment. The goal of deception is to confuse and misdirect the enemy, making it difficult for them to accurately detect and interpret the true intentions and capabilities of the opposing forces.Rate this question:
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- 25.
What is the most effective means of denying the enemy the use of the electromagnetic spectrum?
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Denial
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Deception
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Disruption
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Destruction
Correct Answer
A. DestructionExplanation
The most effective means of denying the enemy the use of the electromagnetic spectrum is through destruction. By destroying the enemy's electronic communication systems, radar systems, and other electronic devices, their ability to utilize the electromagnetic spectrum for their advantage is effectively neutralized. This can be achieved through various methods such as cyber attacks, physical destruction of equipment, or jamming signals. By destroying their ability to use the electromagnetic spectrum, the enemy's communication, surveillance, and coordination capabilities are severely hindered, giving the friendly forces a significant advantage.Rate this question:
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- 26.
What SAM system in north vietnam was devestating to our strike forces?
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SA-1
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SA-2
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SA-4
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SA-6
Correct Answer
A. SA-2Explanation
The SA-2 SAM system in North Vietnam was devastating to our strike forces. This surface-to-air missile system, also known as the "Guideline," was highly effective in shooting down American aircraft during the Vietnam War. Its long-range capability and advanced radar-guided technology made it a significant threat to US strike missions, forcing them to adapt their tactics and employ electronic countermeasures to try and evade its deadly reach. The SA-2 played a crucial role in the air defense network of North Vietnam and caused significant losses to American forces throughout the conflict.Rate this question:
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- 27.
What type of jamming masks the presence and/or location of the strike force?
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Standoff
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Directional
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Destruction
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Communications
Correct Answer
A. StandoffExplanation
Standoff jamming is a type of jamming that masks the presence and/or location of the strike force. It involves creating a distance between the jamming platform and the target, thereby reducing the risk of detection and allowing the strike force to remain hidden. This type of jamming is effective in disrupting enemy communication systems and confusing their defenses, making it difficult for them to locate and engage the strike force.Rate this question:
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- 28.
What type of noise jammer is tunable over a wide range of frequencies, but transmits a narrow bandwidth signal, concentrating all available power on a specific receiver?
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Spot.
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Sweep.
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Barrage.
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Sequential.
Correct Answer
A. Spot.Explanation
A spot noise jammer is tunable over a wide range of frequencies, allowing it to target different types of receivers. However, it transmits a narrow bandwidth signal, which means it concentrates all available power on a specific receiver. This makes it an effective jamming technique as it focuses the jamming signal on a specific target, disrupting its communication while minimizing interference with other nearby devices.Rate this question:
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- 29.
Using a modulated high intensity IR energy to break an IR missile’s lock, is an example of
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Use of the natural environment.
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Active infrared countermeasures.
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Deployment of self-protection flares.
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Introduction of smoke into engine exhaust.
Correct Answer
A. Active infrared countermeasures.Explanation
Using a modulated high intensity IR energy to break an IR missile's lock refers to active infrared countermeasures. This technique involves emitting a strong and modulated infrared signal to confuse or disrupt the guidance system of an incoming IR missile, thereby countering its effectiveness. It is an active measure taken by the target to defend itself against the missile threat.Rate this question:
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- 30.
What technology does the PAS employ to detect contrail from the #3 engine exhaust?
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Laser.
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Acoustic.
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Microwave.
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Millimeter wave.
Correct Answer
A. Laser.Explanation
The PAS (Passive Aircraft Satellite) employs laser technology to detect contrail from the #3 engine exhaust. Laser technology is commonly used for remote sensing applications, and in this case, it allows the PAS to accurately detect and analyze the contrail emissions from the specific engine exhaust. Laser-based systems can provide precise measurements and enable detailed analysis of the contrail composition and characteristics.Rate this question:
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- 31.
What EW component is used to locate intentional and unintentional radiated electromagnetic energy for the threat recognition?
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Electronic attack
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Electronic support
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Electronic protection
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Electronic management
Correct Answer
A. Electronic supportExplanation
Electronic support is the correct answer because it refers to the component used to locate intentional and unintentional radiated electromagnetic energy for threat recognition. Electronic support involves the use of electronic systems to gather, analyze, and interpret electromagnetic signals in order to identify and locate potential threats. This component plays a crucial role in detecting and monitoring enemy electronic emissions, providing valuable information for electronic warfare operations.Rate this question:
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- 32.
Radar’s ability to separate targets into individual returns that are close together is called
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Azimuth.
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Elevation.
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Definition.
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Resolution.
Correct Answer
A. Resolution.Explanation
The question is asking for the term that describes Radar's ability to separate targets into individual returns that are close together. This ability is known as resolution.Rate this question:
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- 33.
Taking direction measurements from more than one source is
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Triangulation.
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Interferometry.
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Time of arrival.
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Amplitude comparison.
Correct Answer
A. Triangulation.Explanation
Triangulation is the process of determining the location of an object by measuring the angles from two or more reference points. By taking direction measurements from multiple sources, triangulation allows for accurate positioning and mapping. This method is commonly used in various fields such as surveying, navigation, and astronomy. Interferometry involves the interference of waves to make precise measurements, while time of arrival and amplitude comparison are not directly related to direction measurements. Therefore, the correct answer is triangulation.Rate this question:
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- 34.
What type of flare does not leave a visual signature such as smoke or flame?
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Covert.
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Kinematic.
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Pyrotechnic.
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Conventional
Correct Answer
A. Covert.Explanation
The correct answer is "Covert." A covert flare is a type of flare that does not leave a visual signature such as smoke or flame. It is designed to be discreet and not draw attention to its location or purpose. This type of flare is often used in military or tactical operations where stealth is important.Rate this question:
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- 35.
What feature of a MAWS relates to timeliness?
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Low false alarm rate.
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Accurate threat positioning reporting.
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Multiple false targets due to maneuvers.
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Rapid identification of infrared missile threats.
Correct Answer
A. Rapid identification of infrared missile threats.Explanation
The feature of a MAWS that relates to timeliness is rapid identification of infrared missile threats. This means that the MAWS is able to quickly and efficiently detect and identify potential missile threats, allowing for prompt response and action to be taken to mitigate the threat. This feature is crucial in ensuring the safety and security of an area or a vehicle equipped with the MAWS system.Rate this question:
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- 36.
What type of electromagnetic jamming focuses all of the jamming energy in one particular area?
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Support
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Standoff
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Directional
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Communications.
Correct Answer
A. DirectionalExplanation
Directional electromagnetic jamming refers to the type of jamming that concentrates all of the jamming energy in a specific area. Unlike other types of jamming, which may spread the jamming energy over a wider range, directional jamming is targeted and focused, allowing for more precise disruption of communication signals in a specific location. This type of jamming is often used in military operations to interfere with enemy communication systems without affecting friendly forces.Rate this question:
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- 37.
What major subdivision of SIGINT collects and processes data on radar?
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PHOTINT
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ELINT.
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HUMINT.
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COMINT.
Correct Answer
A. ELINT.Explanation
ELINT, or Electronic Intelligence, is the major subdivision of SIGINT (Signals Intelligence) that specializes in collecting and processing data on radar. ELINT focuses on intercepting and analyzing electronic signals emitted by radar systems, such as their frequency, waveform, and other characteristics. This information is crucial for understanding enemy radar capabilities, locating radar installations, and developing countermeasures to radar systems. Therefore, ELINT is the correct answer for the question.Rate this question:
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- 38.
The angle of incidence required to get a reflection back to the source is
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30°.
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45°.
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90°.
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120°.
Correct Answer
A. 90°.Explanation
When light waves strike a surface, they can be reflected, absorbed, or transmitted. The angle of incidence is the angle between the incident light ray and the normal to the surface. The angle of reflection is the angle between the reflected light ray and the normal to the surface. According to the law of reflection, the angle of incidence is equal to the angle of reflection. In this case, if the angle of incidence is 90°, it means that the incident light ray is perpendicular to the surface. This angle will result in a reflection that is directed back to the source, as the reflected ray will also be perpendicular to the surface.Rate this question:
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- 39.
When white light is compared to laser light
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Laser light has a wider bandwidth than white light.
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White light has a wider bandwidth than laser light.
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Laser light has the same bandwidth as white light.
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White light has a narrower bandwidth than laser light.
Correct Answer
A. White light has a wider bandwidth than laser light.Explanation
The answer is correct because white light is composed of a range of wavelengths, resulting in a wider bandwidth. In contrast, laser light consists of a single wavelength or a very narrow range of wavelengths, resulting in a narrower bandwidth.Rate this question:
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- 40.
What Air Force aircraft is used extensively to collect ELINT and COMINT data?
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E–6B.
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EC–130H
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KC–135R.
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RC–135V/W.
Correct Answer
A. RC–135V/W.Explanation
The RC-135V/W is extensively used by the Air Force to collect ELINT (Electronic Intelligence) and COMINT (Communications Intelligence) data. This aircraft is specifically designed for reconnaissance missions and is equipped with advanced sensors and communication systems to intercept and analyze electronic and communication signals. It is capable of gathering information from various sources, including radar systems, radio transmissions, and other electronic emissions, making it an essential asset for intelligence gathering and surveillance operations.Rate this question:
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- 41.
What type of noise jammer uses continuous and simultaneous jamming of all frequencies within a wide range of frequencies?
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Spot.
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Sweep.
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Barrage.
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Sequential.
Correct Answer
A. Barrage.Explanation
A barrage noise jammer is a type of jammer that uses continuous and simultaneous jamming of all frequencies within a wide range. It is designed to create a wall of noise that disrupts all signals within the targeted frequency range, making it difficult for any legitimate communication to take place. This type of jammer is effective against a wide range of devices and can be used in various scenarios where a broad spectrum of frequencies needs to be jammed simultaneously.Rate this question:
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- 42.
Degrading or interfering with the enemys C2 capabilities is best described by?
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Denial
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Disruption
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Physical attack
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Support system
Correct Answer
A. DisruptionExplanation
Disruption is the best way to describe degrading or interfering with the enemy's C2 (Command and Control) capabilities. Disruption refers to the act of causing disturbance or interruption in the enemy's C2 systems, making it difficult for them to effectively communicate, coordinate, and control their forces. This can be achieved through various means such as jamming communication signals, hacking into their systems, or conducting cyber attacks. By disrupting the enemy's C2 capabilities, their ability to effectively plan and execute military operations is significantly hindered, giving an advantage to the opposing force.Rate this question:
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- 43.
What is the correct order in which the four radars in an air defense network are used?
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Early warning, height finder, acquisition, and terminal defense.
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Height finder, early warning, acquisition, and terminal defense.
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Acquisition, early warning, height finder, and terminal defense.
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Acquisition, height finder, early warning, and terminal defense
Correct Answer
A. Early warning, height finder, acquisition, and terminal defense.Explanation
The correct order in which the four radars in an air defense network are used is as follows: early warning, height finder, acquisition, and terminal defense. This order makes sense as the early warning radar is responsible for detecting incoming threats at long ranges, the height finder radar determines the altitude of the detected targets, the acquisition radar tracks and identifies the targets, and finally, the terminal defense radar engages and neutralizes the threats.Rate this question:
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- 44.
Additions to the C2 network extend the range of the air defense system?
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Computers and AAA.
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Long-range interceptors and computers.
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AWACS and AAA.
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Long-range interceptors and AWACS.
Correct Answer
A. Long-range interceptors and AWACS.Explanation
Long-range interceptors and AWACS are the correct additions to the C2 network to extend the range of the air defense system. Long-range interceptors are capable of engaging targets at a greater distance, while AWACS (Airborne Warning and Control System) provides airborne surveillance and command and control capabilities, enhancing the overall effectiveness and coverage of the air defense system. The combination of these two additions allows for a wider range of detection, tracking, and interception capabilities, making it the most suitable choice for extending the range of the air defense system.Rate this question:
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- 45.
What component of the RWR identifies radar signals?
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Antenna.
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Signal processor.
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Control indicator.
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Receiver/amplifier
Correct Answer
A. Signal processor.Explanation
The signal processor is the component of the RWR that identifies radar signals. It processes the received signals from the antenna and analyzes them to determine if they are radar signals. The signal processor is responsible for detecting, classifying, and tracking radar signals, allowing the RWR to provide accurate information about potential threats.Rate this question:
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- 46.
What is the emissivity factor of a theoretical black body?
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0.5.
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0.8.
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1.0.
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1.2.
Correct Answer
A. 1.0.Explanation
The emissivity factor of a theoretical black body is 1.0. A black body is an idealized object that absorbs and emits all radiation that falls onto it. It is a perfect emitter and absorber of radiation at all wavelengths. The emissivity factor is a measure of how efficiently an object emits radiation compared to a black body. A value of 1.0 means that the object emits radiation just as efficiently as a black body, making it a perfect emitter.Rate this question:
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- 47.
When a photon causes the release of another photon, it is called
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Stimulated emission.
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Population inversion.
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Spontaneous emission.
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Population conversion.
Correct Answer
A. Stimulated emission.Explanation
When a photon stimulates the release of another photon, it is known as stimulated emission. This process occurs when an excited atom or molecule is hit by a photon of the same energy, causing it to release a second photon with the same energy, phase, and direction. This is a fundamental principle in the operation of lasers, where stimulated emission is used to amplify light and generate a coherent beam.Rate this question:
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- 48.
What region of the frequency spectrum is Air Force aircraft laser sensors used?
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Radio.
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Infrared.
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Ultraviolet.
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Visible light.
Correct Answer
A. Infrared.Explanation
Air Force aircraft laser sensors are used in the infrared region of the frequency spectrum. Infrared light has longer wavelengths than visible light and is able to detect heat signatures emitted by objects. This makes it useful for military applications such as detecting enemy aircraft or missiles. Infrared sensors are also used for night vision technology, allowing pilots to see in low light or dark conditions.Rate this question:
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- 49.
A nonlinear device is any electronic device where the
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Impedance remains constant when the voltage changes.
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Impedance remains constant when the current changes.
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Current through the device is proportional to the applied voltage.
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Current through the device is not proportional to the applied voltage.
Correct Answer
A. Current through the device is not proportional to the applied voltage.Explanation
A nonlinear device is characterized by the fact that the current through the device is not directly proportional to the applied voltage. In other words, as the voltage changes, the current does not change in a linear manner. This means that the impedance of the device does not remain constant as the voltage changes. Nonlinear devices often exhibit behaviors such as saturation, where the current reaches a maximum value even if the voltage continues to increase, or hysteresis, where the current depends not only on the current voltage but also on its history.Rate this question:
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Jul 24, 2024Quiz Edited by
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Oct 27, 2011Quiz Created by
Airmancollin
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