Mhafb CDC 2a051s Vol. 2 Maintenance Fundementals II

A torque wrench is used to tighten bolts to a specific torque value, ensuring that they are not overtightened or undertightened. It is not designed to be used for loosening bolts. When loosening a bolt, a standard break-away wrench or a socket wrench should be used instead. Therefore, the correct answer is "Never" as a torque wrench should not be used to break loose a bolt.

Before using a dropped torque wrench, it is necessary to have it recalibrated. This is because dropping a torque wrench can cause it to become inaccurate and lose its calibration. Recalibrating the wrench ensures that it is measuring torque correctly and provides accurate readings.

In order for a power meter to be used, it needs to be calibrated together with the power sensor. This means that the meter and the sensor need to be calibrated as a pair, ensuring that they are both accurately measuring and reporting power values. Calibrating them independently or disconnecting them from each other would not ensure accurate measurements, and connecting them to an automatic test station is not necessary for calibration. Therefore, the correct answer is to calibrate them together.

When testing a wrist strap with a wrist strap tester, it is important to check both continuity and resistance of the entire system while wearing the cuff. This is because continuity ensures that there is a complete electrical path between the wrist strap and the ground, while resistance measures the effectiveness of the wrist strap in dissipating static charges. By testing both continuity and resistance while wearing the cuff, it ensures that the wrist strap is functioning properly and providing adequate protection against static electricity.

If the VAR control of an oscilloscope is not in the calibrated detent, the time measurement will be inaccurate. This is because the VAR control is responsible for adjusting the vertical position of the waveform on the screen. If it is not in the calibrated detent, the waveform will not be properly aligned, leading to incorrect time measurements.

The formula for frequency, F = 1/T, states that frequency is equal to the reciprocal of the period, where T represents the period. This means that the frequency is determined by dividing 1 by the period of the wave. The period is the time it takes for one complete cycle of the wave to occur. Therefore, the correct answer is F = 1/T.

Binary is the most widely used numbering system in computers because it is based on two digits, 0 and 1, which can be represented by the on and off states of electronic switches. Computers use binary code to represent and process data, allowing them to perform calculations and execute instructions. Other numbering systems like octal, decimal, and hexadecimal are also used in computing, but binary is the fundamental system that underlies all computer operations.

Multiplexing is the process in the MIL-STD-1553B that transmits information from multiple sources through one system. It achieves this by staggering different signals in time to form a composite pulse train. This allows for efficient utilization of the system's resources by combining multiple signals into one transmission.

Improper usage of certain ATLAS system procedures can result in catastrophic damage to the test station. This means that the damage caused by the incorrect usage can be extremely severe and have significant consequences. It implies that the damage may be irreparable or have long-lasting effects on the test station, leading to major disruptions or failures in its functioning.

When ESDS (Electrostatic Discharge Sensitive) components are mounted on a circuit board, they are still susceptible to ESD (Electrostatic Discharge) damage. This means that even though they are attached to a circuit board, they can still be damaged by static electricity. The circuit board itself does not provide sufficient protection against ESD, so proper ESD precautions need to be taken to prevent damage to the components.

A spectrum analyzer is a device used to measure and display the frequency spectrum of a signal. It is similar to a receiver, but instead of outputting the signal through a speaker, it uses a CRT display to visually represent the frequency components of the signal. This allows for a more detailed and accurate analysis of the signal's frequency content.

A computer-controlled power supply is capable of producing variable outputs based on the instructions given by a computer. This means that the power supply can be programmed to adjust its output voltage, current, or other parameters as needed. This flexibility allows for precise control and customization of the power supply's output, making it suitable for various applications in electronics, research, and testing. Therefore, the correct answer is "Programmable."

The control that selects how much of the frequency band is represented by each division of a spectrum analyzer display is the Frequency Span. This control determines the range of frequencies that are displayed on the spectrum analyzer and allows the user to adjust the width of the frequency band being analyzed. By changing the frequency span, the user can zoom in or out on specific frequency ranges to analyze different parts of the spectrum.

Digital multimeters are designed to measure AC voltage, DC voltage, and resistance. They are versatile devices that combine multiple functions into one instrument. They can accurately measure voltage in both alternating current (AC) and direct current (DC) circuits, making them suitable for a wide range of electrical measurements. Additionally, digital multimeters can also measure resistance, allowing users to test the continuity and resistance of various components. Overall, digital multimeters are essential tools for electricians, technicians, and hobbyists for their ability to measure different electrical parameters accurately.

The 60 Hz facility power input to the test station is primarily used to provide power to cooling air blowers, measurement devices, and standard outlets. This means that the power is used to operate the cooling system, the devices used for taking measurements, and to provide electrical outlets for other equipment or tools that may be needed in the test station.

The correct answer is star configuration. The IEEE-488 bus allows devices to be connected in a star configuration, where each device is connected directly to a central controller. In this configuration, all devices can communicate with the controller simultaneously, making it a highly efficient and reliable setup.

The correct answer is National Institute of Standards and Technology. The National Institute of Standards and Technology (NIST) is an organization that sets national calibration standards. NIST is responsible for developing and promoting measurement standards, including those used in science, industry, and commerce. They ensure the accuracy and reliability of measurements by providing calibration services and conducting research in measurement science. NIST plays a crucial role in maintaining consistency and uniformity in measurements across various industries and sectors.

The correct answer is "Ruggedized laptop." The CAPRE uses a ruggedized laptop as its type of computer. This type of laptop is designed to withstand harsh environments and has enhanced durability features such as shock resistance, water resistance, and dust resistance. It is suitable for use in rugged conditions such as military operations, fieldwork, and outdoor activities.

A wrist strap must be tested with a wrist strap tester daily. This is necessary to ensure its effectiveness in dissipating static charges and protecting sensitive electronic equipment from electrostatic discharge (ESD). Regular testing helps to identify any faults or failures in the wrist strap, allowing for timely repairs or replacements to maintain a safe working environment.

To convert inch-pounds to foot-pounds, you need to divide the value by 12. Since the bolt needs to be torqued to 60 inch-pounds, you would divide 60 by 12, which equals 5 foot-pounds. Therefore, you must set the foot-pound torque wrench to 5 foot-pounds to properly torque the bolt.

A TAS (Tool Accountability System) is a system used to track and manage tools within an organization. It provides information about the tool's location, status, and maintenance schedule. The other options listed in the question, such as tool broken and removed, tool removed for calibration, and CTK due for periodic inspection, are all examples of activities that can be tracked and managed using a TAS. However, tool manufacturer is not a feature provided by a TAS. The TAS focuses on tracking and managing tools within the organization, rather than providing information about the tool's manufacturer.

When calibrating the power sensor, you adjust the CAL ADJ control so the digital readout indicates 1.000 mW. This means that you are adjusting the control to ensure that the power sensor accurately measures and displays a power value of 1.000 milliwatts.

The concept of rousing, inciting, or increasing action refers to stimulus. Stimulus refers to something that triggers a response or reaction. In the context of the question, stimulus can be seen as something that provokes or motivates action. It can be an external factor or event that prompts a response or an internal drive or motivation. Therefore, stimulus is the most appropriate option among the given choices to describe the concept of rousing, inciting, or increasing action.

An oscilloscope is a device used to measure and display voltage and frequency visually. It is commonly used in electronic laboratories and engineering fields to analyze and troubleshoot electrical signals. Unlike a digital multimeter or power meter, an oscilloscope provides a graphical representation of the waveform, allowing for detailed analysis of the signal's characteristics such as amplitude, frequency, and phase. Therefore, an oscilloscope is the correct answer for providing a visual display for measuring voltage and frequency.

Triboelectrification refers to the generation of a static charge through friction. When two different materials come into contact and then separate, electrons can transfer from one material to the other, resulting in a build-up of static electricity. This process is commonly observed when rubbing certain materials together, such as rubbing a balloon on hair to make it stick or rubbing a comb on wool to attract small pieces of paper. Therefore, the correct answer is the "generation of a static charge by friction."

When the technical order specifies that compensation is required, it means that the prevailing torque of a self-locking nut needs to be taken into account. Prevailing torque refers to the resistance encountered when tightening or loosening a self-locking nut due to the friction between the nut and the mating threads. This friction helps to prevent the nut from loosening unintentionally. Therefore, when the technical order states that compensation is required, it implies that the prevailing torque of the self-locking nut needs to be considered and adjusted for during the installation or removal process.

In the heterodyning or mixing process, when two frequencies are combined, two new frequencies are produced. The upper sideband is formed by adding the frequencies together, resulting in the sum of the two frequencies. The lower sideband is formed by subtracting the frequencies, resulting in the difference between the two frequencies. Therefore, the correct answer is upper sideband (sum) and lower sideband (difference).

The correct answer is that the power meter can be operated manually or automatically. This means that the power meter can be controlled and monitored either by human intervention or by an automated system. This flexibility allows for different modes of operation depending on the user's preference or the specific requirements of the situation.

The correct answer is TIME/DIV control. When measuring time on an oscilloscope, the time per division is controlled by the TIME/DIV control. This control allows the user to adjust the horizontal scale of the waveform displayed on the screen. By multiplying the trace distance between reference points by the setting of the TIME/DIV control, the user can determine the time duration between those points. The VOLTS/DIV control is used to adjust the vertical scale of the waveform, the AC-GND-DC switch is used to select the input coupling, and the VERT MODE switch is used to select the vertical mode of the waveform display.

An MXI (Multifunction eXternal Interface) is a type of interface card that allows for communication between a computer or instrument and other devices. Therefore, a computer or instrument with an MXI can be referred to as an MXI device. This term encompasses both the computer or instrument itself and the MXI card that enables the communication. MXI controller and MXI mainframe are not accurate descriptions as they do not encompass the entire system.

The MXI bus has two cables, a point-to-point cable and a multidrop cable. A point-to-point cable connects two devices directly, while a multidrop cable allows multiple devices to be connected in a daisy-chain configuration. This means that multiple devices can communicate with a single device on the bus, making it a more efficient and flexible option. Therefore, the correct answer is multidrop cable.

The preamble structure is always the first section of an ATLAS program. The preamble contains important information about the program, such as the program name, author, and date of creation. It also includes any necessary system declarations and initializations. This section sets the stage for the rest of the program and provides essential details for its execution.

The correct answer is AC adapter and lithium-ion battery. This means that the CAPRE can be powered using both an AC adapter and a lithium-ion battery. This allows for flexibility in power sources, as the AC adapter can be used when a power outlet is available, and the lithium-ion battery can be used when on the go or in areas without access to electricity.

Static electricity refers to an electrical charge that is at rest or stationary. It occurs when there is an imbalance of electric charges on the surface of an object. Unlike electric current, which involves the flow of electric charges, static electricity does not involve any movement of charges. Instead, the charges remain static or stationary on the object's surface. Therefore, the term "static electricity" is the correct answer for this question.

Selecting the NORM mode on a pulse generator will result in a continuous pulse output. This means that the pulse generator will continuously generate pulses without any interruptions or breaks in between.

The electostatic voltage sensitivity of the human body is approximately 3,500 volts. This means that the human body can feel or detect electric shocks or voltages up to this level. It is important to be aware of this sensitivity to prevent accidents or injuries caused by electric shocks.

The three principal components of a static control workstation are personnel wrist strap, static dissipative work surface, and common point ground system. Static dissipative flooring is not one of the principal components.

Type III torque wrench uses micrometer-like markings and a rotating adjustment sleeve to set torque values. This type of torque wrench allows for precise and accurate torque settings by allowing the user to easily adjust the torque value using the micrometer-like markings on the wrench and the rotating adjustment sleeve. This makes it suitable for applications where specific torque values need to be achieved.

A power sensor is essentially a transducer. A transducer is a device that converts one form of energy into another. In the case of a power sensor, it converts electrical power into a measurable output, such as voltage or current. This allows the power sensor to accurately measure the power being delivered or consumed by a device or system. Capacitors, transistors, and facilitators are not typically used as power sensors, so they are not the correct answers.

The four control modes of a pulse generator allow you to vary the output pulse characteristics. This means that you can manipulate parameters such as pulse width, rise time, fall time, and duty cycle. By adjusting these characteristics, you can customize the shape and timing of the generated pulses according to your specific requirements.

When using the START FREQ function key on a sweep oscillator to select the start frequency for start/stop sweep operations, the start frequency must be at least 100 Hz lower than the stop frequency. This is because the start frequency sets the initial point from which the sweep will begin, and it needs to be lower than the stop frequency in order for the sweep to progress in the desired direction.

In the MIL-STD-1553B data bus system, the data bus is composed of two types of stubs: transformer-coupled and direct coupled. The correct answer is "direct coupled." This means that the data is transmitted directly from one device to another without the use of a transformer. The direct coupling allows for a more efficient and reliable transfer of data between devices in the system.

In an ESD protective area, a relative humidity level of 40 - 60 percent is the most desirable. This range helps to minimize the buildup of static electricity by ensuring that the air is not too dry or too humid. If the air is too dry, it can increase the likelihood of electrostatic discharge (ESD) events. On the other hand, if the air is too humid, it can lead to condensation which can also cause ESD issues. Therefore, maintaining a relative humidity level within the 40 - 60 percent range is ideal for preventing ESD damage.

The control that compensates for a slight sensitivity associated with a particular type of power sensor is CAL ADJ. This control allows for calibration adjustments to be made to the power sensor, ensuring accurate measurements by compensating for any sensitivity issues.

A MXI bus system consists of two or more MXI bus devices connected in a daisy-chain fashion. This means that multiple devices can be connected in a sequential manner, with each device connected to the next one in the chain. Therefore, the correct answer is "Two or more" MXI bus devices.

The reason it is important for both servicable and unservicable ESDS items to receive the same ESD protection is to prevent any further ESD damage to the remaining operating parts. ESD (electrostatic discharge) can cause damage to electronic components, and if the unservicable items are not protected, there is a risk of ESD transferring to the remaining operating parts and causing additional damage. Therefore, by providing the same level of ESD protection to all items, the risk of further damage to the functioning parts is minimized.

Proper static drain refers to a mechanism that is designed to remove static charge efficiently. It needs to be fast enough to eliminate the static charge before it can cause any damage. However, it also needs to be slow enough so that it doesn't create a damaging electrostatic field. Therefore, the correct answer is discharge current, as it represents the flow of electric charge that neutralizes the static charge without creating harmful effects.

Each division of the oscilloscope faceplate is one centimeter square. This means that each small square on the faceplate measures one centimeter on each side. This unit of measurement allows for precise and accurate readings on the oscilloscope.

A system controller, usually a computer with an IEEE-488 board installed, always retains ultimate control of the bus. This means that it is responsible for managing and coordinating the communication between devices connected to the bus. It has the authority to initiate and terminate data transfers, allocate resources, and ensure proper functioning of the bus. The system controller acts as the central hub and makes decisions regarding the operation of the bus, maintaining control over the entire system.

The correct answer is A and B because the VXI bus modules are compatible with the VME bus modules in terms of size. The VME bus modules come in two sizes, namely A and B, and the VXI bus modules also come in the same sizes. Therefore, both A and B are the true VME bus module sizes for VXI bus modules.