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

ASVAB ASVAB-SECTION-5 Online Questions & Answers

• Question 131:

  

  The symbol in the given diagram represents a ___________.

  A. transducer
  B. resistor
  C. power source
  D. capacitor
  D. capacitor

  ---

  Explanation

• Question 132:

  How much power is being carried in a 220-volt circuit when the current is 10 amps?

  A. 22 watts
  B. 220 watts
  C. 2,200 watts
  D. 4,400 watts
  C. 2,200 watts

  ---

  Explanation

  How much power is being carried in a 220-volt circuit when the current is 10 amps? 2,200 watts (220 volts multiplied by 10 amps = 2,200 watts).

• Question 133:

  Neutral wire is always __________.

  A. whitish or natural
  B. black
  C. green
  D. blue
  A. whitish or natural

  ---

  Explanation

  Neutral wire is always whitish or natural colored.

• Question 134:

  

  The current in the 4 ohm resistor is __________.

  A. 2 amps
  B. 2. 5 amps
  C. 0.4 amps
  D. 1 amp
  D. 1 amp

  ---

  Explanation

  Use Ohm's law - V=IR. The total resistance in the circuit is 10 ohms (add the resistance for serial resistors). Therefore, the total current across either of the resistors is I = V/R = 10/10 =1 amp.

• Question 135:

  A capacitor is also known as ___________.

  A. a resistor
  B. a dielectric
  C. a condenser
  D. an alternator
  C. a condenser

  ---

  Explanation

• Question 136:

  Convention current flow is from __________.

  A. + to +
  B. - to +
  C. + to
  D. - to
  C. + to

  ---

  Explanation

  Conventional current flow is said to be from + to -. This idea was originally used by Ben Franklin to explain the conduct of lightning. This conventional flow is still used today by electrical engineers and people working in physics.

• Question 137:

  A current passed through a muscle in the human body causes the muscle to contract. This is known as __________.

  A. the chemical effect of current
  B. the biological effect of current
  C. the magnetic effect of current
  D. the physiological effect of current
  D. the physiological effect of current

  ---

  Explanation

  The ability of current to contracts muscles is called the physiological effect.

• Question 138:

  When working with electricity, you should assume that all electrical equipment is alive unless you know for certain otherwise. This prevents __________.

  A. damage to circuits
  B. personal injury
  C. unnecessary labor
  D. overheating the equipment
  B. personal injury

  ---

  Explanation

  The greatest concern when dealing with electricity is personal injury.

• Question 139:

  The farad is the unit of measurement of ___________.

  A. capacitance
  B. voltage
  C. resonance
  D. ohms
  A. capacitance

  ---

  Explanation

• Question 140:

  In a closed electrical circuit __________.

  A. one terminal is always positive, and one terminal is always negative.
  B. both terminals can be positive.
  C. both terminals can be negative.
  D. terminals are neither positive nor negative.
  A. one terminal is always positive, and one terminal is always negative.

  ---

  Explanation

  In a closed circuit, one terminal is always positive, and the other is always negative.