ASVAB ASVAB-SECTION-5 Online Practice Questions and Exam Preparation

ASVAB ASVAB-SECTION-5 Online Questions & Answers

• Question 161:

  If you operate an incandescent light bulb at less than its rated voltage __________.

  A. the bulb will burn brighter and last longer.
  B. the bulb will burn dimmer and last longer.
  C. the bulb will burn brighter but won't last as long.
  D. the bulb will burn dimmer but won't last as long.
  B. the bulb will burn dimmer and last longer.

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  Explanation

  The bulb will burn dimmer because its full potential isn't used; it will last longer for the same reason.

• Question 162:

  What color is Neutral wire?

  A. Blue
  B. Green
  C. Black
  D. White
  D. White

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  Explanation

  Neutral wire is whitish (or natural) colored.

• Question 163:

  The rate of electrons through a conductor is measured in units of ___________.

  A. current
  B. electricity
  C. volts
  D. amperes
  D. amperes

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  Explanation

• Question 164:

  Induction is measured in ___________.

  A. Henries
  B. ohms
  C. Franks
  D. joules
  A. Henries

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  Explanation

• Question 165:

  The outer shell of an atom is known as the ___________.

  A. suborbital shell
  B. valence shell
  C. final shell
  D. core shell
  B. valence shell

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  Explanation

• Question 166:

  If both the resistors shown (R1 and R2) in the diagram below are of equal size, what is the voltage at the arrow?

  

  A. 9V
  B. 12 V
  C. 18 V
  D. 24 V
  B. 12 V

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  Explanation

  The total voltage drop of the circuit must equal the voltage across the battery, which is 24 V.

  Because the resistors are both the same size, each resistor creates half of the total voltage drop: 24/2 = 12.

  Therefore, the voltage at the arrow is 12 V.

• Question 167:

  A light bulb is 60 watts.

  Operated at 120 volts, how much current does it draw?

  A. 0.5 ampere
  B. 5. 0 amperes
  C. 50.0 amperes
  D. 7. 200 amperes
  A. 0.5 ampere

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  Explanation

  Power = Current ?Voltage or, written another way, Current = Power/Voltage. 60/120 = 0.5 ampere.

• Question 168:

  Which electronic component can store charge?

  A. a transistor
  B. a transformer
  C. a resistor
  D. a capacitor
  D. a capacitor

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  Explanation

  A capacitor can store a charge. A capacitor stores energy in an electric field. Positive charges collect on one plate and negative charges on the other plate.

• Question 169:

  The two types of transistors are ___________.

  A. PNP and NPN
  B. PPP and NNN
  C. ABC and BCA D. CBC and PRN
  A. PNP and NPN

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  Explanation

• Question 170:

  Current is measured using ___________.

  A. wires
  B. an ammeter
  C. a currentometer
  D. a spectrometer
  B. an ammeter

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  Explanation