ASVAB Electronics Information Practice Test 759835 Results

Your Results Global Average
Questions 5 5
Correct 0 3.54
Score 0% 71%

Review

1

Which of the following is not a terminal on a transistor?

59% Answer Correctly

collector

input

emitter

base
Solution

A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.

2

The electrical potential difference between two points is called:

60% Answer Correctly

conductance

voltage

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.

3

The joule is a unit of measurement for:

67% Answer Correctly

power

capacitance

energy

resistance
Solution

The joule is a unit of measurement for energy.

4 A circuit with a 120-volt power supply is protected by a 15-amp circuit breaker. What is the largest number of watts loads on this circuit can safely use?
82% Answer Correctly
1800 W
3600 W
1620 W
1801.5 W
Solution
Wattage is current multiplied by voltage: W = IV. So, the maximum amount of power a 120-volt circuit with a 15A circuit breaker would allow is 120V x 15A = 1800 W.
5 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 60 Ω and current is 5.5 amps.
85% Answer Correctly
660 V
330 V
990 V
331.5 V
Solution

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

V = \( I \times R \) = \( 5.5 \times 60 \) = 330 V