ASVAB Electronics Information Practice Test 137627 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.69
Score	0%	74%

Review

The joule is a unit of measurement for:

67% Answer Correctly

	resistance
	capacitance
	power
	energy

Solution

The joule is a unit of measurement for energy.

2 What's the overall power consumption of a piece of equipment that is rated for 7 amps at 70 volts?

85% Answer Correctly

	245 W
	980 W
	493 W
	490 W

Solution

Power is measured in watts (W) and 1 watt equals 1 ampere multiplied by 1 volt: P = \( V \times I \). For this problem, the equipment is rated for 7 amps (I) at 70 volts (V) so the equation becomes P = \( 70 \times 7 \) = 490 W

Electromotive force is another name for:

53% Answer Correctly

	power
	energy
	current
	voltage

Solution

Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.

The ohm is a unit of measurement for:

80% Answer Correctly

	resistance
	capacitance
	energy
	power

Solution

Resistance is opposition to the flow of current and is measured in ohms (Ω). One ohm is defined as the amount of resistance that will allow one ampere of current to flow if one volt of voltage is applied. As resistance increases, current decreases as resistance and current are inversely proportional.

Why does current in an electric circuit create heat?

77% Answer Correctly

	current is naturally hot
	the wire in the circuit burns when current passes through
	heat is created when the current overcomes resistance in the wire
	voltage is naturally hot

Solution

Current in an electric circuit creates heat when the current overcomes resistance in the wire.