ASVAB Electronics Information Practice Test 665599 Results

Your Results Global Average
Questions 5 5
Correct 0 3.53
Score 0% 71%

Review

1 A circuit with a 120-volt power supply is protected by a 20-amp circuit breaker. What is the largest number of watts loads on this circuit can safely use?
82% Answer Correctly
2402 W
2640 W
2400 W
800 W

Solution
Wattage is current multiplied by voltage: W = IV. So, the maximum amount of power a 120-volt circuit with a 20A circuit breaker would allow is 120V x 20A = 2400 W.

2

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-parallel

parallel

series

closed


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.


3

A capacitor to an electronic circuit is like a _______________ to a house?

66% Answer Correctly

safe

gate

storage shed

driveway


Solution

Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.


4

You would measure the amount of voltage between two points in a circuit with a(n):

83% Answer Correctly

battery

ammeter

voltmeter

reostat


Solution

Voltage (V) is the electrical potential difference between two points. A voltmeter is used to measure the voltage between two points in a circuit.


5

An engineer who wants to document an electric circuit would create which of the following?

67% Answer Correctly

a layout

a matrix

a schematic

a blueprint


Solution

A schematic is the proper name for a drawing of an electric or electronic circuit.