ASVAB Electronics Information Practice Test 858863 Results

Your Results Global Average
Questions 5 5
Correct 0 3.51
Score 0% 70%

Review

1

Which of the following is the preferred method for splicing wires?

57% Answer Correctly

wrap in small gauge wire

screw-on connectors

soldering

wire crimps
Solution

Splicing is permanently joining two wires together. Splicing can be done with screw-on connectors or wire crimps but the preferred method for splicing is soldering. Soldering takes the most effort but results in a connection that is electrically and mechanically identical to the original wire.

2 What's the overall power consumption of a piece of equipment that is rated for 7 amps at 20 volts?
85% Answer Correctly
126 W
46 W
210 W
140 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 7 amps (I) at 20 volts (V) so the equation becomes P = \( 20 \times 7 \) = 140 W
3 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 70 Ω and current is 9.5 amps.
85% Answer Correctly
665 V
666.5 V
671 V
663 V
Solution

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

V = \( I \times R \) = \( 9.5 \times 70 \) = 665 V

4

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

45% Answer Correctly

no

more

less

the same
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.

5

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

69% Answer Correctly

ohms

amperes

volts

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.