ELECS 20

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?

• Integral voltmeter

• Digital voltmeter

• Differential voltmeter

• Comparator

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitter?

• Frequency stability

• Practicality

• Power capability

• Availability

What is the name given to a variety of rotary electromechanical, position sensing devices?

• Synchros

• Servos

• Gyros

• Rotors

What is a system in which the precise movement of large load is controlled by a relatively weak control signal?

• Sychro

• Servo

• Gyro

• Rotor

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?

• Mylar

• Paper capacitor

• Ceramic capacitor

• Electrolytic capacitor

A material that removes oxides from surfaces to be joined by soldering or welding

• Sandpaper

• Rust converter

• Acid

• Flux

What type of radar transmitter power is measured over a period of time?

• Average power

• Peak envelope power (PEP)

• RMS power

• Apparent power

What is a mechanical device containing a spinning mass that is universally mounted?

• Sychro

• Servo

• Gyroscope

• Rotor

What type of tube best meets the requirements of a modulator switching element?

• Thyratron

• Klystron

• Magnetron

• TWT

In what manner are current-measuring instruments connected to a circuit?

• Series-parallel

• Series

• Parallel-series

• Parallel