1. What is a precision piece of test equipment used to compare an unknown voltage with an internal reference voltage and to indicate the difference in their values?
A. Integral voltmeter
B. Digital voltmeter
C. Differential voltmeter
D. Comparator
2. What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitter?
A. Frequency stability
B. Practicality
C. Power capability
D. Availability
3. What is the name given to a variety of rotary electromechanical, position sensing devices?
A. Sychros
B. Servos
C. Gyros
D. Rotors
4. What is a system in which the precise movement of large load is controlled by a relatively weak control signal?
A. Sychro
B. Servo
C. Gyro
D. Rotor
5. What type of capacitor with a usual range in values from 1 picofarad to 0.01 microfarad and may be used with voltages as high as 30,000 volts?
A. Mylar
B. Paper capacitor
C. Ceramic capacitor
D. Electrolytic capacitor
6. A material that removes oxides from surfaces to be joined by soldering or welding
A. Sandpaper
B. Rust converter
C. Acid
D. Flux
7. What type of radar transmitter power is measured over a period of time?
A. Average power
B. Peak envelope power (PEP)
C. RMS power
D. Apparent power
8. What is a mechanical device containing a spinning mass that is universally mounted?
A. Sychro
B. Servo
C. Gyroscope
D. Rotor
9. What type of tube best meets the requirements of a modulator switching element?
A. Thyratron
B. Klystron
C. Magnetron
D. TWT
10. In what manner are current-measuring instruments connected to a circuit?
A. Series-parallel
B. Series
C. Parallel-series
D. Parallel
11. What refers to the ability of a gyro to keep its axis fixed in space?
A. Precession
B. Stability
C. Rigidity
D. Flexibility
12. Most meggers you will use are rated at what voltage?
A. 1000
B. 100
C. 300
D. 500
13. Power transformer normally operates at ___ alternating current.
A. 60 Hz or 400 Hz
B. 30 Hz or 60 Hz
C. 60 Hz or 50 Hz
D. 60 Hz or 120 Hz
14. What type of maintenance is used to isolate troubles by means of test techniques and practices that realign or readjust equipment or otherwise bring the equipment back up to proper performance?
A. Maintenance
B. Preventive maintenance
C. Corrective and preventive
D. Corrective maintenance
15. The magnesium-manganese dioxide cell has a voltage of approximately how many volts?
A. 2 V
B. 1.5 V
C. 1.2 V
D. 1.35 V
16. In a gyro, a vector representing the rotary motion applied to change the direction of the rotor axis is called ___.
A. Torque vector
B. Rotary vector
C. Horizontal vector
D. Torque gyro
17. The strength of the magnetic field of the coils is dependent upon
a. The number of turns of the wire in the coil
b. The amount of current in the coil
c. The ratio of the coil length to the coil width
d. The type of material in the core
A. A, B and C
B. A,B,C and D
C. B,C and D
D. D, A and C
18. What is the frequency range of magnetron oscillator?
A. 600 to 30 GHz
B. 600 to 30 THz
C. 600 to 30 MHz
D. 600 to 30 PHz
19. Which of the basic timing circuits produces sharp trigger pulses directly?
A. 555 timer
B. Pulsed oscillator
C. Blocking oscillator
D. Keyed oscillator
20. When taking resistance reading with a VOM, you will obtain the most accurate readings at or near what part of the scale?
A. Midscale
B. End scale
C. Full scale
D. Quarter scale
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