ASVAB Electronics Information Practice Test 215210 Results

Your Results Global Average
Questions 5 5
Correct 0 3.28
Score 0% 66%

Review

1 A circuit with a 120-volt power supply is protected by a 10-amp circuit breaker. What is the largest number of watts loads on this circuit can safely use?
84% Answer Correctly
600 W
1203 W
2400 W
1200 W
Solution
Wattage is current multiplied by voltage: W = IV. So, the maximum amount of power a 120-volt circuit with a 10A circuit breaker would allow is 120V x 10A = 1200 W.
2

The voltage output of a transformer primarily depends on which of the following?

57% Answer Correctly

the diameter of the coils

the conductor used for the wire in the coils

the number of turns in the wire of the coils

the diameter of the wire in the coils
Solution

A transformer utilizes an inductor to increase or decrease the voltage in a circuit. AC flowing in a coil wrapped around an iron core magnetizes the core causing it to produce a magnetic field. This magnetic field generates a voltage in a nearby coil of wire and, depending on the number of turns in the wire of the primary (source) and secondary coils and their proximity, voltage is induced in the secondary coil.

3

Capacitors connected in series produce __________ capacitance compared to capacitors connected in parallel.

45% Answer Correctly

less

the same

more

no
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 connected in series produce less capacitance than capacitors connected in parallel.

4

The electrical potential difference between two points is called:

60% Answer Correctly

voltage

resistance

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.

5

The volt is a unit of measurement for:

79% Answer Correctly

current

voltage

capacitance

power
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.