ELECTRONICS CHAPTER 7 1

The results of internal IC failures will usually be noticed during the ____ phase of troubleshooting.

• diagnostic

• isolation

• repair

• final test

The electrical power to a megger is provided by

• battery

• inverter

• permanent magnet dc generator

• ac generator

A +5 V PCB power source that has been

• a circuit open

• a faulty regulator

• the half-split method

• a circuit short

A linear displacement digital transducer generally uses

• straight binary code

• BCD

• gray code

• hexadecimal code

The flow rate of electrically conducting liquid without any suspended particle cannot be measured by

• turbine flow meter

• electromagnetic flow meter

• ultrasonic flow meter

• thermistor based heat flow meter

Measurement of non-electrical quantity involves the following subsystems 1. Amplifier block 2. Display block 3. Instrumentation block 4. Transducer block The correct sequence of these blocks is

• 4, 1, 3, 2

• 4, 3, 1, 2

• 1, 3, 2, 4

• 1, 2, 3, 4

Basically a potentiometer is a device for

• comparing two voltage

• measuring a voltage

• comparing two currents

• measuring a current

A device commonly used for remote switching of wire communications signals is:

• a solenoid

• an electromagnet

• a potentiometer

• a relay

A Weston frequency meter is

• moving coil instrument

• moving iron instrument

• dynamometer instrument

• induction instrument

The use of triggered sweep when using an oscilloscope provides more accuracy in which area?

• frequency

• amplitude

• graticule activity

• timing