ASVAB Electronics Information Practice Test 369270 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.89
Score	0%	58%

Review

1 How would you connect 10 [12V 5A] batteries to achieve a combined power output of 12V 50A?

51% Answer Correctly

	parallel
	perpendicular
	series
	orthogonal

Solution

Connecting the 10 batteries in series multiplies their voltage while keeping their current the same yielding a 120V 5A configuration. Connecting the 10 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 12V 50A configuration. Using a series-parallel connection, 5 batteries can be connected in series and 5 can be connected in parallel resulting in a 60V 25A configuration.

The electrical potential difference between two points is called:

60% Answer Correctly

	resistance
	voltage
	conductance
	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.

Which of the following converts electrical energy into another form of energy in an electrical circuit?

61% Answer Correctly

	wiring
	DC source
	AC source
	load

Solution

A load is a source of resistance that converts electrical energy into another form of energy. The components of a microwave, for example, are loads that work together to convert household electricity into radation that can be used to quickly cook food.

Which of the following is not an advantage of semiconductors over conductors?

49% Answer Correctly

	a semiconductor's conductivity can be varied under an external electrical field
	a semiconductor exhibits increased conductivity with increased temperatures
	materials to produce semiconductors are cheap and abundant
	a semiconductor conducts current better than a conductor

Solution

A semiconductor is a material that has a limited ability to conduct electrical current with conductivity between that of an insulator and that of a conductor. Silicon, a cheap and abundant material, is the most used semiconductor material although other materials are used in the electronics components made from semiconductors. The primary advantages of a semiconductor over a conductor is that the conductivity of a semiconductor can be varied under an external electrical field giving engineers precise control over complex circuits and, unlike conductors like metals, a semiconductor's conductivity increases with increased temperatures.

5 How would you connect 6 [12V 15A] batteries to achieve a combined power output of 36V 45A?

67% Answer Correctly

	series-parallel
	parallel
	orthogonal
	series

Solution

Connecting the 6 batteries in series multiplies their voltage while keeping their current the same yielding a 72V 15A configuration. Connecting the 6 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 12V 90A configuration. Using a series-parallel connection, 3 batteries can be connected in series and 3 can be connected in parallel resulting in a 36V 45A configuration.