ASVAB Electronics Information Practice Test 105674 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.40
Score	0%	68%

Review

Which of the following is not a purpose of a resistor in an electrical circuit?

70% Answer Correctly

	control the voltage in the circuit
	moderate the heat in the circuit
	multiply the current in the circuit
	limit the current in the circuit

Solution

Resistors can be chosen in a wide variety of values to control the voltage in a circuit, limit the current, or moderate the heat produced by the components in the circuit.

The hertz is a unit of measurement for:

81% Answer Correctly

	frequency
	energy
	power
	inductance

Solution

The hertz is a unit of measurement for frequency.

Which of the following is not a common type of battery?

40% Answer Correctly

	deep-cycle
	power-cycle
	dry cell
	wet cell

Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery. The three most common types of batteries are dry cell (used in small devices like TV remotes), wet cell (used for cars), and deep-cycle (storage batteries used primarily for backup and emergency power).

4 A circuit with a 120-volt power supply is protected by a 10-amp circuit breaker. What is the largest number of watts loads on this circuit can safely use?

82% Answer Correctly

	1201.5 W
	600 W
	1320 W
	1200 W

Solution

Wattage is current multiplied by voltage: W = IV. So, the maximum amount of power a 120-volt circuit with a 10A circuit breaker would allow is 120V x 10A = 1200 W.

A capacitor to an electronic circuit is like a _______________ to a house?

66% Answer Correctly

	safe
	gate
	storage shed
	driveway

Solution

Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.