ASVAB Electronics Information Practice Test 208515 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.62
Score	0%	52%

Review

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

45% Answer Correctly

	less
	no
	more
	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.

Which of the following will increase the magnetic field produced by the electric current in a wire?

68% Answer Correctly

	wrap the wire around a ceramic core
	construct the wire from insulative material
	construct the wire from conductive material
	wind the wire into a coil

Solution

A moving electric current produces a magnetic field proportional to the amount of current flow. This magnetic field can be made stronger by winding the wire into a coil and further enhanced if done around an iron containing (ferrous) core.

In metals, increasing the temperature typically _____________ conductivity.

50% Answer Correctly

	eliminates
	does nothing to
	decreases
	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.

What is the frequency of most household electrical systems?

59% Answer Correctly

	110Hz
	60MHz
	110V
	60Hz

Solution

Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances. Most households use electricity with a frequency of 60Hz.

Which of the following is not a common type of battery?

40% Answer Correctly

	power-cycle
	dry cell
	wet cell
	deep-cycle

Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery. The three most common types of batteries are dry cell (used in small devices like TV remotes), wet cell (used for cars), and deep-cycle (storage batteries used primarily for backup and emergency power).