2a553c CDC Volume 2 Ure
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What system consists of emergency exits, ejection seats, and hatch jettisons?
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Window.
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Hydraulic.
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Fire protection.
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Crew escape and safety.
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This quiz, titled '2A553C CDC Volume 2 URE', evaluates knowledge in aerospace maintenance, focusing on preventative inspections, damage types, lubrication, tool control, and tool kit organization. Essential for professionals managing aircraft maintenance and safety.
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- 2.
Standard data bus interfaces, supported within the programmer loader verifier (PLV), include RS–232C, RS–422, IEEE–488, and
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DC–200.
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TR–1150D.
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MIL-STD–1000.
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MIL-STD–1553B.
Correct Answer
A. MIL-STD–1553B.Explanation
The given answer, MIL-STD-1553B, is the correct one because it is listed among the standard data bus interfaces supported within the programmer loader verifier (PLV). The other options listed, DC-200, TR-1150D, and MIL-STD-1000, are not mentioned as supported interfaces. Therefore, MIL-STD-1553B is the only valid option among the given choices.Rate this question:
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- 3.
The typical 1553 data bus system command that provides a mechanism for an remote terminal (RT) to send data to another RT when the BC does not require the data is called
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Bus controller (BC) to RT.
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RT to BC.
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RT to RT.
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BC to BC.
Correct Answer
A. RT to RT.Explanation
The correct answer is RT to RT. In a typical 1553 data bus system, when the Bus Controller (BC) does not require the data, the Remote Terminal (RT) can still send data to another RT using the RT to RT command. This command allows direct communication between two RTs without involving the BC.Rate this question:
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- 4.
Which of the following is not looked for during a visual preventative maintenance inspection?
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Fungus growth.
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Corroded connectors.
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Sand and grit deposits.
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Voltages within tolerances.
Correct Answer
A. Voltages within tolerances.Explanation
During a visual preventative maintenance inspection, various factors are examined to ensure the proper functioning and condition of the equipment. Fungus growth, corroded connectors, and sand and grit deposits are all potential issues that can affect the performance and longevity of the equipment. However, voltages within tolerances are not typically assessed during a visual inspection, as they require specialized equipment and testing procedures to accurately measure. Therefore, the correct answer is "Voltages within tolerances."Rate this question:
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- 5.
How are small tools, which cannot be marked, controlled in a composite tool kit (CTK)?
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In a way determined by the wing commander.
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Tools that cannot be marked will not be placed in CTKs.
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Create a designated position in the CTK for the item and listing it on an inventory.
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In a container marked with the identification number and number of tools contained within.
Correct Answer
A. In a container marked with the identification number and number of tools contained within. -
- 6.
What precaution must you take first before installing an electrostatic discharge (ESD) line replaceable unit (LRU)?
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Remove protective caps or covers.
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Touch the LRU case with your hands.
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Ensure the aircraft is properly grounded.
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Touch the ends of aircraft wiring to the LRU case.
Correct Answer
A. Ensure the aircraft is properly grounded.Explanation
Before installing an electrostatic discharge (ESD) line replaceable unit (LRU), the first precaution that must be taken is to ensure that the aircraft is properly grounded. This is important because grounding the aircraft helps to prevent the buildup of static electricity, which could potentially damage the LRU during installation. By ensuring that the aircraft is properly grounded, the risk of electrostatic discharge and potential damage to the LRU is minimized.Rate this question:
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- 7.
What system provides defogging of windows and cabin pressurization?
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Electrical.
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Hydraulics.
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Propulsion.
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Air-conditioning.
Correct Answer
A. Air-conditioning.Explanation
The correct answer is air-conditioning. Air-conditioning systems in vehicles are responsible for defogging windows and cabin pressurization. They regulate the temperature and humidity inside the cabin, ensuring that the windows do not fog up and providing a comfortable environment for passengers. Air-conditioning systems use a combination of cooling, heating, and ventilation to achieve these functions.Rate this question:
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- 8.
What system monitors temperature changes and overheat conditions in the engine nacelles?
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Hydraulic.
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Propulsion.
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Fire protection.
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Air-conditioning.
Correct Answer
A. Fire protection.Explanation
The correct answer is Fire protection. The fire protection system is responsible for monitoring temperature changes and overheat conditions in the engine nacelles. It is designed to detect any potential fire hazards and activate appropriate safety measures to prevent fire outbreaks. This system plays a crucial role in ensuring the safety of the aircraft and its passengers by continuously monitoring and responding to any fire-related risks in the engine nacelles.Rate this question:
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- 9.
What components are used to guard against accidental firing of ejection seats?
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Initiators.
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Stabilizers.
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Safety pins.
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Red streamers.
Correct Answer
A. Safety pins.Explanation
Safety pins are used to guard against accidental firing of ejection seats. These pins are inserted into the ejection seat mechanism to prevent it from being triggered unintentionally. They provide an additional layer of safety by physically blocking the activation mechanism and ensuring that the ejection seat remains secure until intentionally released. Initiators, stabilizers, and red streamers may have other functions but are not specifically designed to guard against accidental firing of ejection seats.Rate this question:
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- 10.
Which type of cable is used to carry radio frequency (RF) power from one point to another?
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Electromagnetic pulse (EMP).
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Insulated wire.
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Shielded.
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Coaxial.
Correct Answer
A. Coaxial.Explanation
Coaxial cables are specifically designed to carry high-frequency signals, including radio frequency (RF) power, from one point to another. They consist of a central conductor surrounded by an insulating layer, a metallic shield, and an outer insulating layer. The shield helps to minimize interference and signal loss, making coaxial cables ideal for transmitting RF power over long distances with minimal distortion. Electromagnetic pulse (EMP) refers to a burst of electromagnetic energy, not a type of cable. Insulated wire and shielded cables may be used for other purposes, but they are not specifically designed for carrying RF power.Rate this question:
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- 11.
Which condition of an EMP hardened cable is considered nonrepairable by local personnel?
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Frayed to cable jacket.
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Damage to internal wires.
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Loose outer shield.
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Broken pins at the connector.
Correct Answer
A. Damage to internal wires.Explanation
Damage to internal wires is considered nonrepairable by local personnel because it requires specialized knowledge and equipment to repair. Local personnel may not have the necessary training or tools to fix internal wire damage in an EMP hardened cable. Frayed cable jacket, loose outer shield, and broken pins at the connector can be repaired or replaced by local personnel with basic training and tools.Rate this question:
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- 12.
Which navigation system provides the aircraft position, security ID, altitude, and personal ID?
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Global positioning system (GPS).
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Identification, friend or foe (IFF).
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Instrument landing system (ILS).
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Inertial navigation system (INS).
Correct Answer
A. Identification, friend or foe (IFF). -
- 13.
What countermeasures dispensing system (CMDS) uses the countermeasures dispenser tester (CDT) misfire test when selected by the MODE switch?
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AN/ALE–40.
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AN/ALE–43.
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AN/ALE–45.
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AN/ALE–47.
Correct Answer
A. AN/ALE–47.Explanation
The countermeasures dispensing system (CMDS) that uses the countermeasures dispenser tester (CDT) misfire test when selected by the MODE switch is the AN/ALE-47.Rate this question:
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- 14.
What lubricant is available in an aerosol and used for light to moderate loads?
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Silicone.
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General-purpose grease.
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General-purpose lubricating oil.
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High-temperature lubricating oil.
Correct Answer
A. Silicone.Explanation
Silicone lubricant is available in an aerosol and is commonly used for light to moderate loads. It is a versatile lubricant that can be used in various applications and environments. Silicone lubricant is known for its high resistance to heat, water, and chemicals, making it suitable for a wide range of uses. It provides smooth and long-lasting lubrication, reducing friction and wear on moving parts.Rate this question:
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- 15.
At what voltage level can electrostatic discharges (ESD) not be seen, felt, or heard?
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15,000.
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9,000.
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6,000.
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4,000.
Correct Answer
A. 4,000.Explanation
Electrostatic discharges (ESD) are typically not visible, felt, or heard at voltage levels below 4,000. This means that any voltage level below 4,000 is too low to generate a noticeable ESD.Rate this question:
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- 16.
The number and position of the fire extinguisher is determined by
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Whether munitions, pyrotechnics, or magnesium incendiaries are involved.
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Maintenance being performed during refuel or defuel operations.
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The presence of fire department personnel at the scene.
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Applicable aircraft TO and TO 00–25–172.
Correct Answer
A. Applicable aircraft TO and TO 00–25–172.Explanation
The correct answer is "applicable aircraft TO and TO 00–25–172." This means that the number and position of the fire extinguisher is determined by the guidelines and regulations outlined in the applicable aircraft Technical Order (TO) and TO 00–25–172. These documents provide specific instructions and requirements for various aspects of aircraft operations, including fire safety. Therefore, it is important to consult these guidelines to ensure that the correct number and positioning of fire extinguishers are in place based on the specific aircraft and its operational requirements.Rate this question:
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- 17.
What is the reflective surface that propagates light along the optical transmission path?
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Core.
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Buffer.
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Cladding.
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Shielding.
Correct Answer
A. Cladding.Explanation
The correct answer is cladding. In optical fibers, cladding is the outer layer that surrounds the core. It has a lower refractive index than the core, which allows it to act as a reflective surface. This reflection helps to keep the light within the core and propagate it along the optical transmission path. The cladding serves to protect the core and maintain the integrity of the transmitted light signal.Rate this question:
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- 18.
What part of the helicopter counteracts the torque condition?
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Tail rotor.
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Stabilator.
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Main rotor.
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Swash plate.
Correct Answer
A. Tail rotor.Explanation
The tail rotor is responsible for counteracting the torque condition in a helicopter. When the main rotor spins, it creates a torque that tries to rotate the helicopter in the opposite direction. The tail rotor, located at the end of the tail boom, produces a sideways thrust that counteracts this torque and keeps the helicopter stable. By adjusting the pitch of the tail rotor blades, the pilot can control the amount of thrust and effectively counteract the torque, allowing for stable flight.Rate this question:
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- 19.
Which is a DoD-owned network approved for classified data transfer?
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SIPRNET.
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NIPRNET.
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INTERNET.
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INTRANET.
Correct Answer
A. SIPRNET.Explanation
SIPRNET is a DoD-owned network that is specifically approved for transferring classified data. It is designed to provide secure communication and information sharing for the U.S. government and its authorized partners. NIPRNET, on the other hand, is a separate network used for unclassified data transfer. The Internet and Intranet are not specifically owned or approved by the DoD for classified data transfer.Rate this question:
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- 20.
Which method of tool layout prevents a quick, accurate inventory of a composite tool kit (CTK)?
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Foam cutouts in a tool tray.
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Tools set loosely in a drawer.
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Contrasting foam depressions.
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Tools hung on a shadow board.
Correct Answer
A. Tools set loosely in a drawer.Explanation
Setting tools loosely in a drawer prevents a quick, accurate inventory of a composite tool kit (CTK) because it makes it difficult to visually assess which tools are present and which are missing. When tools are not securely organized or held in place, they can easily shift or become jumbled together, making it challenging to identify and count them accurately. This method of tool layout also increases the risk of misplacing or losing tools, leading to inefficiency and potential safety hazards.Rate this question:
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- 21.
What helps to dissipate and lessen the effects of electrostatic discharges?
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Using nonconducting packaging materials.
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Using proper insulating materials.
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Dehumidified air.
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Humid air.
Correct Answer
A. Humid air.Explanation
Humid air helps to dissipate and lessen the effects of electrostatic discharges because it increases the conductivity of the surrounding environment. When the air is humid, the moisture in the air allows for the free movement of ions, which helps to neutralize any charges that may build up on objects. This reduces the likelihood of electrostatic discharges occurring and minimizes their effects.Rate this question:
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- 22.
What length of lacing cord is required to properly lace a cable bunch?
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One and a half times the length of the cable.
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Two times the length of the cable.
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Two and a half times the length of the finished bundle.
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Three times the length of the cable.
Correct Answer
A. Two and a half times the length of the finished bundle.Explanation
To properly lace a cable bunch, two and a half times the length of the finished bundle is required. This is because when lacing a cable bunch, the cord needs to go around the cables multiple times to secure them properly. By using two and a half times the length of the finished bundle, there will be enough cord to wrap around the cables and tie them securely without running out of cord. This ensures that the cables are properly laced and organized.Rate this question:
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- 23.
Which action is not a safety precaution for deactivating chaff/flare systems?
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Installing safety pins.
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Pulling circuit breakers.
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Removing arming signal from dispensers.
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Loading expendables during routine maintenance.
Correct Answer
A. Loading expendables during routine maintenance.Explanation
Loading expendables during routine maintenance is not a safety precaution for deactivating chaff/flare systems. Safety precautions typically involve actions that minimize the risk of accidental activation or discharge of the system. Installing safety pins, pulling circuit breakers, and removing the arming signal from dispensers are all examples of safety precautions that help ensure the system is deactivated safely. However, loading expendables during routine maintenance can potentially lead to accidental activation or discharge, making it an unsafe action.Rate this question:
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- 24.
The composite tool kit (CTK) program was developed to
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Reduce tool costs through the use of chits.
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Make end-of-shift tool inspections more efficient.
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Eliminate damage to aircraft and to control aircraft costs.
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Eliminate damage to aircraft, equipment, and to control tool assets.
Correct Answer
A. Eliminate damage to aircraft, equipment, and to control tool assets.Explanation
The correct answer is to eliminate damage to aircraft, equipment, and to control tool assets. The CTK program aims to prevent any harm or damage to aircraft and equipment by implementing effective measures and controls. By doing so, it helps to minimize costs associated with repairing or replacing damaged aircraft and tools. Additionally, the program focuses on maintaining and controlling tool assets, ensuring their proper usage and preventing any loss or misuse.Rate this question:
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- 25.
How do you ensure that a coaxial cable transmission line is outputting maximum signal strength?
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Check the standing-wave-ratio of the cable.
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Check for an open between the inner and outer conductors.
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Check for an open outer conductor between the connectors on each end of the cable.
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Check for a shorted outer conductor between the connectors on each end of the cable.
Correct Answer
A. Check the standing-wave-ratio of the cable.Explanation
To ensure that a coaxial cable transmission line is outputting maximum signal strength, it is necessary to check the standing-wave-ratio of the cable. The standing-wave-ratio (SWR) is a measure of how well the impedance of the cable matches the impedance of the connected devices. A high SWR indicates a mismatch, which can result in signal loss and reduced performance. By checking the SWR, one can identify any impedance mismatches and take corrective measures such as adjusting the cable length or using impedance matching devices to optimize the signal strength.Rate this question:
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- 26.
The disadvantage of using a wave guide is its
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High power loss.
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Size restrictions.
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Low power handling capability.
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Use is limited to low frequencies.
Correct Answer
A. Size restrictions.Explanation
Waveguides are structures that guide electromagnetic waves along a specific path. One of the disadvantages of using a waveguide is its size restrictions. Waveguides are designed to operate at specific frequencies, and their dimensions are determined by the wavelength of the waves they are intended to guide. This means that waveguides can only be used for certain frequency ranges, and their size cannot be easily adjusted to accommodate different frequencies. Therefore, the size restrictions of waveguides limit their versatility and applicability in various applications.Rate this question:
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- 27.
Which B–2 doors have blade seals?
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Interior.
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Exterior.
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Intermediate.
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GLAS.
Correct Answer
A. Exterior.Explanation
The correct answer is "Exterior." Blade seals are typically used in exterior doors to provide a tight seal against air and water infiltration. These seals are designed to prevent drafts, noise, and moisture from entering the building. In contrast, interior doors do not usually require blade seals as they are not exposed to outdoor elements. Intermediate doors may or may not have blade seals depending on their location and purpose. GLAS doors are not commonly used, so it is unlikely that they would have blade seals.Rate this question:
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- 28.
On the ACES II ejection seat, what indicates a “hot” seat?
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A recessed red recovery sequencer.
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A recessed white recovery sequencer.
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A protruding red recovery sequencer.
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A protruding white recovery sequencer.
Correct Answer
A. A protruding red recovery sequencer.Explanation
A protruding red recovery sequencer indicates a "hot" seat on the ACES II ejection seat. This means that the seat is armed and ready for ejection. The protruding red recovery sequencer is easily visible and can be quickly identified by the pilot or crew members in case of an emergency.Rate this question:
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- 29.
The span of the display, on a spectrum analyzer, is the size of the band of frequencies that are displayed and adjusted with the
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FREQUENCY control.
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MIN/RF ATTEN control.
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FREQUENCY SPAN control.
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REFERENCE LEVEL control.
Correct Answer
A. FREQUENCY SPAN control.Explanation
The span of the display on a spectrum analyzer refers to the range of frequencies that are shown and adjusted using the FREQUENCY SPAN control. This control allows the user to select the desired width or size of the frequency band that is displayed on the analyzer. By adjusting the FREQUENCY SPAN control, the user can zoom in or out on the frequency range of interest, allowing for a more detailed or broader view of the spectrum.Rate this question:
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- 30.
What advantage of fiber optic cable allows for a greatly increased information-carrying capacity within a single fiber?
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Smaller size.
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Wider bandwidth.
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Lower signal attenuation.
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Immunity to electromagnetic interference.
Correct Answer
A. Wider bandwidth.Explanation
The advantage of fiber optic cable that allows for a greatly increased information-carrying capacity within a single fiber is its wider bandwidth. Unlike traditional copper cables, fiber optic cables have a much larger bandwidth, which means they can transmit a greater amount of data at a faster rate. This wider bandwidth allows for more information to be carried within a single fiber, making fiber optic cables ideal for high-speed data transmission over long distances.Rate this question:
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- 31.
A transmission line with a simple construction, high radiation loss, and high noise pickup describes
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A shielded line.
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An air coaxial line.
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A flexible coaxial line.
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A parallel two-wire open line.
Correct Answer
A. A parallel two-wire open line.Explanation
A transmission line with a simple construction, high radiation loss, and high noise pickup is likely a parallel two-wire open line. This type of transmission line consists of two parallel conductors that are not shielded, which makes it susceptible to radiation loss and noise pickup. The simple construction refers to the basic design of the parallel wires, and the absence of shielding contributes to the high radiation loss and noise pickup.Rate this question:
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- 32.
What type of loss occurs as a result of electrical current flowing through a conductor?
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Copper.
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Radiation.
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Induction.
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Dielectric.
Correct Answer
A. Copper.Explanation
The correct answer is Copper. When electrical current flows through a conductor, there is a certain amount of resistance that causes the conductor to heat up. This heating effect is known as copper loss, as copper is commonly used as a conductor material. The resistance of the copper conductor leads to energy loss in the form of heat, which is why it is important to consider this factor when designing electrical systems.Rate this question:
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- 33.
Which navigation system provides position, altitude, speed, and time information from satellites?
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Rendezvous beacon.
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Global positioning system (GPS).
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Tactical Air Navigation (TACAN).
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Air Force satellite communication (AFSATCOM).
Correct Answer
A. Global positioning system (GPS).Explanation
The correct answer is Global positioning system (GPS). GPS is a navigation system that uses satellites to provide accurate position, altitude, speed, and time information. It is widely used in various industries and applications, including aviation, maritime, and automotive. GPS works by receiving signals from multiple satellites and using trilateration to calculate the user's precise location. It has become an essential tool for navigation and tracking purposes worldwide.Rate this question:
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- 34.
Damage to the sampling gate or tunnel diode of a time domain reflectometer indicates voltages exceeding.
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1V was applied.
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5V was applied.
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–1V was applied.
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–4V was applied.
Correct Answer
A. 5V was applied.Explanation
The damage to the sampling gate or tunnel diode of a time domain reflectometer indicates that voltages exceeding 5V were applied.Rate this question:
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- 35.
The common aircraft portable reprogramming equipment (CAPRE) uses what type of computer?
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Ruggedized laptop.
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Solid-state personal computer.
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Ruggedized personal data assistant.
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Portable unit with programmable cartridge.
Correct Answer
A. Ruggedized laptop.Explanation
The common aircraft portable reprogramming equipment (CAPRE) uses a ruggedized laptop as its computer. A ruggedized laptop is designed to withstand harsh environments and is built to be durable and resistant to damage. This makes it suitable for use in aircraft, where it may be subjected to vibrations, extreme temperatures, and other challenging conditions. The ruggedized laptop would be able to handle the demands of the CAPRE system and ensure reliable performance in the field.Rate this question:
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- 36.
Which receiver device produces current in response to incident light?
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Zener diode.
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Pin photodiode.
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Injection laser diode.
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Light emitting diode.
Correct Answer
A. Pin photodiode.Explanation
A pin photodiode is a type of semiconductor device that generates current when exposed to light. It consists of a p-type layer, an intrinsic layer, and an n-type layer. When light photons strike the intrinsic layer, they create electron-hole pairs, which then generate a current. This current can be used as a signal in various applications such as optical communication, light sensing, and imaging. The other options, Zener diode, injection laser diode, and light emitting diode, do not produce current in response to incident light.Rate this question:
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- 37.
The minimum bend radius for a coaxial cable is
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Twice the inside diameter.
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Double the outside diameter.
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Six times the inside diameter.
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Six times the outside diameter.
Correct Answer
A. Six times the outside diameter.Explanation
The minimum bend radius for a coaxial cable is six times the outside diameter. This means that the cable should not be bent in a radius smaller than six times the size of its outer diameter. Bending the cable in a smaller radius can cause signal loss, interference, or even damage to the cable. Therefore, it is important to adhere to the recommended minimum bend radius to ensure optimal performance and longevity of the coaxial cable.Rate this question:
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- 38.
Which of the following is not a proper procedure for soldering a center pin on a coax cable center conductor?
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Use rosin-core 60/40 tin/lead solder.
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Use a small soldering pencil (less than 100 watts).
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Apply heat at the dielectric end of the center pin body.
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Feed solder through the hole in the side of the center pin.
Correct Answer
A. Apply heat at the dielectric end of the center pin body.Explanation
Applying heat at the dielectric end of the center pin body is not a proper procedure for soldering a center pin on a coax cable center conductor. Heat should be applied to the metal part of the center pin, not the dielectric end, in order to properly melt the solder and create a secure connection.Rate this question:
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- 39.
Which communication system provides encryption and decryption of voice communications?
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Secure.
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Ultra high frequency (UHF).
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Automatic direction finder (ADF).
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Air Force satellite communication (AFSATCOM).
Correct Answer
A. Secure.Explanation
The correct answer is "Secure." This communication system provides encryption and decryption of voice communications, ensuring that the information transmitted remains confidential and secure.Rate this question:
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- 40.
What piece of test equipment is used to measure absolute or relative power?
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Oscilloscope.
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Power meter.
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Spectrum analyzer.
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Digital multimeter.
Correct Answer
A. Power meter.Explanation
A power meter is a piece of test equipment specifically designed to measure absolute or relative power. It is commonly used in various fields such as electrical engineering, telecommunications, and physics. A power meter is capable of accurately measuring the power level of a signal, whether it is in terms of absolute power (in watts) or relative power (in dBm or dBW). This measurement is crucial in determining the performance and efficiency of a device or system, making the power meter an essential tool in many industries.Rate this question:
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- 41.
Which of the following is an Air Force reprogramming exercise?
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BRAVE BYTE.
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PROUD BYTE.
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SERENE BYTE.
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NEPTUNE BYTE.
Correct Answer
A. SERENE BYTE.Explanation
An Air Force reprogramming exercise refers to the process of modifying or updating the software or systems used by the Air Force. Among the given options, "SERENE BYTE" seems to be the most appropriate choice as it implies a calm and peaceful approach to reprogramming, which aligns with the idea of making changes in a controlled and organized manner. The other options, "BRAVE BYTE," "PROUD BYTE," and "NEPTUNE BYTE," do not convey the same sense of methodical and disciplined reprogramming.Rate this question:
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- 42.
Shielded cable consists of
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A metallic braid over the insulation.
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A metal conductor covered with a dielectric.
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An inner conductor separated by an insulation dielectric.
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A compact wire bundle with self-contained wire assemblies.
Correct Answer
A. A metallic braid over the insulation.Explanation
Shielded cable consists of a metallic braid over the insulation. This metallic braid acts as a shield to protect the inner conductor from external electromagnetic interference. It helps to reduce noise and signal degradation by providing a barrier against electromagnetic radiation. The insulation layer underneath the metallic braid provides electrical insulation and further protection to the inner conductor. Overall, the metallic braid over the insulation enhances the performance and reliability of the shielded cable.Rate this question:
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- 43.
What type of cable is required for greater shielding against electromagnetic interference?
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Twisted pair.
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Coaxial.
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Triaxial.
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Shielded.
Correct Answer
A. Triaxial.Explanation
Triaxial cable provides the highest level of shielding against electromagnetic interference compared to twisted pair, coaxial, and shielded cables. It consists of three layers of shielding, including an inner conductor, an insulating layer, and an outer conductor, which helps to minimize interference from external sources. This design makes triaxial cable ideal for applications where strong shielding is necessary, such as in high-frequency transmission systems or environments with high levels of electromagnetic interference.Rate this question:
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- 44.
What navigation system determines the aircraft height above the terrain?
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Global positioning system (GPS).
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Radar altimeter.
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Doppler radar.
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Radar set.
Correct Answer
A. Radar altimeter.Explanation
The radar altimeter is the navigation system that determines the aircraft's height above the terrain. Unlike the global positioning system (GPS) which provides the aircraft's position, the radar altimeter specifically measures the distance between the aircraft and the ground directly below it. This information is crucial for pilots to maintain safe altitude during takeoff, landing, and low-level flight operations. Doppler radar and radar set are not specifically designed for determining aircraft height above the terrain, making them incorrect options.Rate this question:
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- 45.
When calibrating the power sensor, adjust the CAL ADJ control so that the digital readout indicates
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1.000W.
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–1.000W.
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1.000 mW.
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–1.000mW.
Correct Answer
A. 1.000 mW.Explanation
When calibrating the power sensor, the CAL ADJ control should be adjusted so that the digital readout indicates 1.000 mW. This means that the power sensor is being calibrated to measure power in milliwatts.Rate this question:
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- 46.
What key on the pulse box enables the user to use the top portion of the dual function keys?
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UP.
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2ND.
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3RD.
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MAN.
Correct Answer
A. 2ND.Explanation
The correct answer is 2ND. The 2ND key on the pulse box enables the user to use the top portion of the dual function keys. This means that by pressing the 2ND key followed by another key, the user can access the secondary function or command assigned to that key.Rate this question:
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- 47.
What switch on the countermeasures dispenser tester (CDT) allows for the retrieval and display of fire test results?
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ALE.
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DATA.
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MODE.
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RESET.
Correct Answer
A. DATA.Explanation
The switch on the countermeasures dispenser tester (CDT) that allows for the retrieval and display of fire test results is the DATA switch. This switch is responsible for accessing and displaying the data collected during the fire test. By selecting the DATA switch, the user can view the test results and analyze the performance of the countermeasures dispenser.Rate this question:
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- 48.
What position of the DATA switch is selected to display the fire test main PASS/FAIL indication?
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SEQ.
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COUNT.
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NO FIRE.
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GO/NO-GO.
Correct Answer
A. GO/NO-GO.Explanation
The position of the DATA switch that is selected to display the fire test main PASS/FAIL indication is "GO/NO-GO". This means that the switch needs to be set to the "GO/NO-GO" position in order to see whether the fire test has passed or failed.Rate this question:
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- 49.
All of the following are advantages of a multiplex bus except
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Increases reliability.
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Decreases available space.
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Reduces aircraft weight.
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Reduces the volume of wires.
Correct Answer
A. Decreases available space.Explanation
A multiplex bus is a communication system that allows multiple signals to be transmitted simultaneously over a single channel. It offers several advantages, including increased reliability, reduced aircraft weight, and a decrease in the volume of wires required for communication. However, it does not decrease available space. In fact, a multiplex bus can help optimize space utilization by reducing the number of individual wires and cables needed for communication, thus freeing up more space for other components or purposes.Rate this question:
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Apr 19, 2024Quiz Edited by
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Nov 04, 2011Quiz Created by
Airmancollin
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