ASVAB Electronics Information Circuits Practice Test 197023 Results

Your Results Global Average
Questions 5 5
Correct 0 3.02
Score 0% 60%

Review

1 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 90 Ω and current is 9 amps.
85% Answer Correctly
2430 V
891 V
1215 V
810 V

Solution

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

V = \( I \times R \) = \( 9 \times 90 \) = 810 V


2 How would you connect 6 [6V 15A] batteries to achieve a combined power output of 36V 15A?
52% Answer Correctly
perpendicular
parallel
series
orthogonal

Solution

Connecting the 6 batteries in series multiplies their voltage while keeping their current the same yielding a 36V 15A configuration. Connecting the 6 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 6V 90A configuration. Using a series-parallel connection, 3 batteries can be connected in series and 3 can be connected in parallel resulting in a 18V 45A configuration.


3 How would you connect 6 [6V 5A] batteries to achieve a combined power output of 6V 30A?
51% Answer Correctly
series-parallel
perpendicular
parallel
orthogonal

Solution

Connecting the 6 batteries in series multiplies their voltage while keeping their current the same yielding a 36V 5A configuration. Connecting the 6 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 6V 30A configuration. Using a series-parallel connection, 3 batteries can be connected in series and 3 can be connected in parallel resulting in a 18V 15A configuration.


4 How would you connect 10 [15V 10A] batteries to achieve a combined power output of 75V 50A?
67% Answer Correctly
series
orthogonal
series-parallel
parallel

Solution

Connecting the 10 batteries in series multiplies their voltage while keeping their current the same yielding a 150V 10A configuration. Connecting the 10 batteries in parallel multiplies their current while keeping their voltage the same yieleding a 15V 100A configuration. Using a series-parallel connection, 5 batteries can be connected in series and 5 can be connected in parallel resulting in a 75V 50A configuration.


5 Suppose you have 4 [9V 15A] batteries that you can connect together in series, in parallel, or in series-parallel. Which of the following voltage and ampere combinations cannot be attained using these 4 batteries?
46% Answer Correctly
36V 15A
9V 60A
4V 135A
18V 30A

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 yielding 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.