ASVAB Electronics Information Practice Test 657100 Results

Your Results Global Average
Questions 5 5
Correct 0 3.45
Score 0% 69%

Review

1

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

69% Answer Correctly

ohms

coulombs

amperes

volts


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.


2 Use Ohm's Law to calculate the value of current in this circuit if voltage is 595 volts and resistance is 70 Ω.
80% Answer Correctly
11.5 A
8.5 A
2.83 A
25.5 A

Solution

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

Solved for current, I = \( \frac{V}{R} \) = \( \frac{595}{70} \) = 8.5 A


3

The volt is a unit of measurement for:

79% Answer Correctly

voltage

capacitance

current

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.


4

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

57% Answer Correctly

wrap in small gauge wire

wire crimps

screw-on connectors

soldering


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.


5

If an electrical circuit is interrupted, which of the following will result?

61% Answer Correctly

open circuit

short circuit

parallel circuit

closed circuit


Solution

A closed circuit is a complete loop or path that electricity follows. It consists of a source of voltage, a load, and connective conductors. If the circuit is interrupted, if a wire is disconnected or cut for example, it becomes an open circuit and no electricity will flow.