Mhafb CDC 2a051s Vol. 2 Maintenance Fundementals II

90 Questions | By F15 Ais Training | Last updated: Mar 18, 2022 | Total Attempts: 172

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Volume 2 URE Questions for 5 level CDCs

Questions and Answers

1.

(201) An electrical charge at rest is called
- A.
  
  Electric current
- B.
  
  Static electricity
- C.
  
  Electrostatic voltage
- D.
  
  Electrostatic discharge
2.

(201) Triboelectrification is the
- A.
  
  Generation of a static charge by friction
- B.
  
  Dissipation of a static charge by diffusion
- C.
  
  Dissipation of a static charge by a static drain
- D.
  
  Generation of a static charge by electrical noise
3.

(201) In an ESD protective area, what level of relative humidity is the most desirable?
- A.
  
  20 - 40 percent
- B.
  
  40 - 60 percent
- C.
  
  60 - 80 percent
- D.
  
  80 - 100 percent
4.

(201) The electostatic voltage sensitivity of the human body is approximately how many volts?
- A.
  
  500
- B.
  
  1,200
- C.
  
  3,500
- D.
  
  4,500
5.

(201) When ESDS components are mounted on a circuit board, the
- A.
  
  Components are still susceptible to ESD damage
- B.
  
  Components are no longer susceptible to ESD damage
- C.
  
  Circuit board forms a static drain, protecting the components
- D.
  
  Circuit board forms an electrostatic shield, protecting the components
6.

(202) It is important for servicable and unservicable (reparable) ESDS items to receive the same ESD protection so
- A.
  
  The conductive connector caps are not lost
- B.
  
  Technicians stay in the habit of protecting all items
- C.
  
  No further ESD damage is done to the damaged parts
- D.
  
  No further ESD damage is done to the remaining operating parts
7.

(202) Proper static drain is fast enough to quickly remove the static charge before any damage is done, yet slow enough so it doesn't produce a damaging
- A.
  
  Electrostatic field
- B.
  
  Discharge current
- C.
  
  Discharge voltage
- D.
  
  Microdiffusion field
8.

(202) Which is not one of the three principal components of a static control workstation?
- A.
  
  Personnel wrist strap
- B.
  
  Static dissipative flooring
- C.
  
  Common point ground system
- D.
  
  Statis dissipative work surface
9.

(202) How often must a wrist strap be tested with a wrist strap tester?
- A.
  
  Daily
- B.
  
  Weekly
- C.
  
  Monthly
- D.
  
  Before each use
10.

(202) What is the proper procedure when you are testing a wrist strap with a wrist strap tester?
- A.
  
  Check only the resistance of the entire system when you are not wearing the cuff
- B.
  
  Check only the continuity of the entire system when you are not wearing the cuff
- C.
  
  Check continuity and resistance of the entire system when you are wearing the cuff
- D.
  
  Check continuity and resistance of the entire system when you are not wearing the cuff
11.

(203) You must torque a bolt to 60 inch-pounds, but you only have a foot-pound torque wrench. To what value must you set the foot-pound torue wrench to properly torque the bolt?
- A.
  
  3 foot-pounds
- B.
  
  5 foot-pounds
- C.
  
  6 foot-pounds
- D.
  
  12 foot-pounds
12.

(203) Which torque wrench uses micrometer-like markings and a rotating adjustment sleeve to set torque values?
- A.
  
  Type I
- B.
  
  Type II
- C.
  
  Type III
- D.
  
  Type IV
13.

(204) When would you use a torque wrench to break loose a bolt?
- A.
  
  Never
- B.
  
  Whenever the bolt is overtightened
- C.
  
  When using a torque wrench extender
- D.
  
  When it's too tight to use a standard break-away wrench
14.

(204) You must compensate for the prevailing torque of a self-locking nut if it is more than ___% of a nut's recommended torque value
- A.
  
  15%
- B.
  
  20%
- C.
  
  25%
- D.
  
  33%
15.

(204) You must compensate for the prevailing torque of a self-locking nut when the
- A.
  
  Technical order specifies that compensation is required
- B.
  
  Prevailing torque is developed by a nylon self-locking nut
- C.
  
  TO does not specify that compensation is required
- D.
  
  Prevailing torque is less than 10 percent of the recommended torque value
16.

(204) Before using a dropped torque wrench, you must
- A.
  
  Have it recalibrated
- B.
  
  Update the certification label
- C.
  
  Cycle through the breakaway torque
- D.
  
  Set the wrench to its maximum setting
17.

(205) Which is not provided by a TAS?
- A.
  
  Tool manufacturer
- B.
  
  Tool broken and removed
- C.
  
  Tool removed for calibration
- D.
  
  CTK due for periodic inspection
18.

(206) In the heterodyning or mixing process, what are the two new frequencies produced?
- A.
  
  Upper sideband (difference) and lower sideband (sum)
- B.
  
  Upper sideband (sum) and lower sideband (difference)
- C.
  
  Upper sideband (difference) and middle sideband (sum)
- D.
  
  Upper sideband (sum) and middle sideband (difference)
19.

(207) Which radio-frequency component is used to sample an input signal and does not have any moving parts?
- A.
  
  Filter
- B.
  
  Mixer
- C.
  
  Isolator
- D.
  
  Directional coupler
20.

(207) The radio-frequency component used to prevent any feedback in a circuit is the
- A.
  
  Isolator
- B.
  
  Attenuator
- C.
  
  Band-pass filter
- D.
  
  Directional coupler
21.

(208) The power meter
- A.
  
  Must be operated manually
- B.
  
  Can be operated manually or automatically
- C.
  
  Can only be operated through use of an interface bus
- D.
  
  Can only be operated through an ATS
22.

(208) What control compensates for a slight sensitivity associated with a particular type of power sensor?
- A.
  
  CAL ADJ
- B.
  
  RANGE HOLD
- C.
  
  SENSOR ZERO
- D.
  
  CAL FACTOR %
23.

(209) A power sensor is essentially a
- A.
  
  Capacitor
- B.
  
  Transistor
- C.
  
  Facilitator
- D.
  
  Transducer
24.

(209) Before a power meter can be used, the meter and power sensor must be
- A.
  
  Calibrated together
- B.
  
  Calibrated independently
- C.
  
  Disconnected from each other
- D.
  
  Connected to an automatic test station
25.

(209) When calibrating the power sensor, you adjust the CAL ADJ control so the digital readout indicates
- A.
  
  1.000 W
- B.
  
  -1.000 W
- C.
  
  1.000 mW
- D.
  
  -1.000 mW

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