ASVAB Electronics Information Practice Test 726966 Results

Your Results Global Average
Questions 5 5
Correct 0 3.57
Score 0% 71%

Review

1

In metals, increasing the temperature typically _____________ conductivity.

49% Answer Correctly

decreases

does nothing to

eliminates

increases
Solution

All conductors have resistance and the amount of resistance varies with the element. Metals exhibit increased resistance (and, therefore, lower conductivity) as their temperature increases.

2

Which of the following converts electrical energy into another form of energy in an electrical circuit?

61% Answer Correctly

wiring

AC source

load

DC source
Solution

A load is a source of resistance that converts electrical energy into another form of energy. The components of a microwave, for example, are loads that work together to convert household electricity into radation that can be used to quickly cook food.

3 What's the overall power consumption of a piece of equipment that is rated for 9 amps at 150 volts?
92% Answer Correctly
1350 W
1349 W
4050 W
1485 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 150 volts (V) so the equation becomes P = \( 150 \times 9 \) = 1350 W
4

The ampere is a unit of measurement for:

79% Answer Correctly

energy

current

power

inductance
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

This circuit diagram represents a(n):

65% Answer Correctly

series-parallel circuit

series circuit

rectifier

parallel circuit
Solution

In a parallel circuit, each load occupies a separate parallel path in the circuit and the input voltage is fully applied to each path. Unlike a series circuit where current (I) is the same at all points in the circuit, in a parallel circuit, voltage (V) is the same across each parallel branch of the circuit but current differs in each branch depending on the load (resistance) present.