ASVAB Electronics Information Practice Test 42099 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.70
Score	0%	54%

Review

In metals, increasing the temperature typically _____________ conductivity.

50% Answer Correctly

	does nothing to
	eliminates
	increases
	decreases

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.

The ampere is a unit of measurement for:

79% Answer Correctly

	current
	power
	inductance
	energy

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.

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

45% Answer Correctly

	no
	the same
	more
	less

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.

The diameter of a number 12 wire is __________ the diameter of a number 6 wire?

52% Answer Correctly

	triple
	less than
	more than
	double

Solution

The larger the number the smaller the diameter of the wire. So, the diameter of a number 12 wire is less than the diameter of a number 6 wire.

In an electronic circuit, a thermocouple can be used to:

42% Answer Correctly

	open or close a circuit at a designated temperature
	link the temperature of one component in the circuit to that of another component in the circuit
	increase or decrease the temperature of a component in the circuit
	keep the circuit at a designated safe temperature

Solution

A thermocouple is a temperature sensor that consists of two wires made from different conductors. The junction of these two wires produces a voltage based on the temperature difference between them and can be used like a switch to open or close the circuit at a designated temperature.