ASVAB Electronics Information Practice Test 218169 Results

Your Results Global Average
Questions 5 5
Correct 0 3.86
Score 0% 77%

Review

1

This circuit component symbol represents a(n):

72% Answer Correctly

inductor

resistor

potentiometer

capacitor
Solution

Resistors are used to limit voltage and/or current in a circuit and can have a fixed or variable resistance.  Variable resistors (often called potentiometers or rheostats) are used when dynamic control over the voltage/current in a circuit is needed, for example, in a light dimmer or volume control.

2 What's the overall power consumption of a piece of equipment that is rated for 9 amps at 60 volts?
92% Answer Correctly
543 W
540 W
535 W
810 W
Solution
Power is measured in watts (W) and 1 watt equals 1 ampere multiplied by 1 volt: P = \( V \times I \). For this problem, the equipment is rated for 9 amps (I) at 60 volts (V) so the equation becomes P = \( 60 \times 9 \) = 540 W
3

Current is the rate of flow of electrons per unit time and is measured in:

69% Answer Correctly

volts

amperes

ohms

coulombs
Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). A coulomb (C) is the quantity of electricity conveyed in one second by a current of one ampere.

4

The rate of flow of electrons per unit time is which of the following?

74% Answer Correctly

current

conductance

voltage

resistance
Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). A coulomb (C) is the quantity of electricity conveyed in one second by a current of one ampere.

5

Electricity cannot flow...

72% Answer Correctly

through a circuit with resistance

through a closed circuit

through a circuit under load

through an open circuit
Solution

An electrical circuit is a path through which electricity flows. This path contains one or more components that create a load (something that is using electricity) and that load acts as resistance to the passage of electricity through the circuit. Electricity can only flow through a circuit when the path is closed and cannot flow through an open circuit.