ASVAB Electronics Information Practice Test 5

Question – 1

1. Primary batteries are designed to be __________ and discarded when they are exhausted.

  • A. recharged over and over

  • B. used once

  • C. charged once

  • D. stored multiple times

  • Answer:B

  • Answer Explanation:


Question – 2

2. Which of the following is not a characteristic feature of a field effect transistor?

  • A. low input impedance

  • B. a reverse-biased PN junction

  • C. low power consumption

  • D. high input impedance

  • Answer:A

  • Answer Explanation:


Question – 3

3. In practical applications, what would happen to battery voltage?

  • A. Voltage is reduced to zero

  • B. Voltage is restored as soon as disconnected

  • C. Voltage is stored indefinitely

  • D. Voltage is lowered as load increases

  • Answer:D

  • Answer Explanation:


Question – 4

4. The needle will __________ when an open capacitor is checked with an ohmmeter.

  • A. stay on infinity

  • B. move from zero to infinity

  • C. move from infinity to zero

  • D. stay on zero

  • Answer:A

  • Answer Explanation:


Question – 5

5. Find the Q (Quality factor) of a series circuit that resonates at 6 kHz, has equal reactance of 7 kilo-ohms each and a resistor value of 50 ohms?

  • A. 0.0014

  • B. 140

  • C. 8600

  • D. 7.0

  • Answer:B

  • Answer Explanation:


Question – 6

6. Which one of the following is an example of a series dissipative regulator?

  • A. shunt regulator

  • B. dc-to-dc converter

  • C. linear regulator

  • D. switching regulator

  • Answer:C

  • Answer Explanation:


Question – 7

7. ___________ is an example of potential energy.

  • A. A battery

  • B. The sun

  • C. A kettle

  • D. A vehicle

  • Answer:A

  • Answer Explanation:


Question – 8

8. The signal is _________, if current varies periodically from zero to a maximum, back to zero, and then repeats.

  • A. repetitive

  • B. pulsating

  • C. alternating

  • D. direct

  • Answer:B

  • Answer Explanation:


Question – 9

9. Find the impedance for XL= 100?? and R = 100??.

  • A. 14.14 ??

  • B. 150 ??

  • C. 141.4 ??

  • D. 100 ??

  • Answer:C

  • Answer Explanation:


Question – 10

10. __________ is the fourth harmonic of a fundamental frequency of 600 Hz.

  • A. 4 kHz

  • B. 4 Hz

  • C. 2.4 kHz

  • D. 100 Hz

  • Answer:C

  • Answer Explanation:


Question – 11

11. What is meant by half splitting?

  • A. Isolating a problem in a circuit

  • B. Limiting current in a circuit

  • C. Reducing a high ac voltage to a low dc voltage

  • D. Nuclear fuel cells to produce electricity

  • Answer:A

  • Answer Explanation:


Question – 12

12. Find the kilowatt-hour consumption of a 30 W lamp if it remains ON for 1600 h?

  • A. 43.75

  • B. 4.37

  • C. 48

  • D. 40

  • Answer:C

  • Answer Explanation:


Question – 13

13. A voltmeter is used

  • A. to measure coulombs

  • B. in series with the circuit

  • C. to measure current

  • D. in parallel with the circuit

  • Answer:D

  • Answer Explanation:


Question – 14

14. ___________ are the types of basic adder circuits.

  • A. Asynchronous and synchronous

  • B. Half adder and full adder

  • C. Half adder and parallel adder

  • D. One’s complement and two’s complement

  • Answer:B

  • Answer Explanation:


Question – 15

15. CRT oscilloscope displays __________.

  • A. rms voltage and current

  • B. frequency and voltage

  • C. voltage and period

  • D. current and frequency

  • Answer:C

  • Answer Explanation:


Score: 0/10

Leave a Reply

Your email address will not be published. Required fields are marked *