ASVAB Electronics Information Practice Test 429362 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.85
Score	0%	57%

Review

Direct current flows from the __________ terminal of the voltage source to the __________ terminal.

62% Answer Correctly

	positive, positive
	positive, negative
	negative, negative
	negative, positive

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.

This circuit component symbol represents a(n):

57% Answer Correctly

	capacitor
	transformer
	DC source
	AC source

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 sum of the voltage drops across each resistor in a __________ circuit will equal the total voltage applied to the circuit.

54% Answer Correctly

	series
	closed
	series-parallel
	parallel

Solution

A series circuit has only one path for current to flow. In a series circuit, current (I) is the same throughout the circuit and is equal to the total voltage (V) applied to the circuit divided by the total resistance (R) of the loads in the circuit. The sum of the voltage drops across each resistor in the circuit will equal the total voltage applied to the circuit.

The electrical potential difference between two points is called:

60% Answer Correctly

	voltage
	conductance
	resistance
	current

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.

5 How would you connect 4 [9V 15A] batteries to achieve a combined power output of 9V 60A?

52% Answer Correctly

	parallel
	perpendicular
	orthogonal
	series

Solution

Connecting the 4 batteries in series multiplies their voltage while keeping their current the same yielding a 36V 15A configuration. Connecting the 4 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 9V 60A configuration. Using a series-parallel connection, 2 batteries can be connected in series and 2 can be connected in parallel resulting in a 18V 30A configuration.