ASVAB Electronics Information Practice Test 727218 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.49
Score	0%	70%

Review

Which of the following allows encapsulating complex circuit designs for easier integration into electronic devices and machines?

67% Answer Correctly

	integrated circuits
	parallel circuits
	series-parallel circuits
	series circuits

Solution

Circuits containing transistors are packaged into integrated circuit chips that allow encapsulating complex circuit designs (CPU, memory, I/O) for easier integration into electronic devices and machines.

2 Use Ohm's Law to calculate the value of resistance in this circuit if voltage is 85 volts and current is 8.5 amps.

80% Answer Correctly

	10 Ω
	12 Ω
	20 Ω
	30 Ω

Solution

Ohm's law specifies the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit: V = IR.

Solved for resistance, R = \( \frac{V}{I} \) = \( \frac{85}{8.5} \) = 10 Ω

Resistance and current are __________ proportional.

68% Answer Correctly

	inversely
	directly
	exponentially
	not

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.

4 A circuit with a 120-volt power supply is protected by a 25-amp circuit breaker. What is the largest number of watts loads on this circuit can safely use?

82% Answer Correctly

	3300 W
	3000 W
	3002 W
	6000 W

Solution

Wattage is current multiplied by voltage: W = IV. So, the maximum amount of power a 120-volt circuit with a 25A circuit breaker would allow is 120V x 25A = 3000 W.

The valence shell of a conductor is how full of electrons?

52% Answer Correctly

	more than half full
	half full
	full
	less than half full

Solution

Conductors are elements that allow electrons to flow freely. Their valence shell is less than half full of electrons that are able to move easily from one atom to another.