Free ASVAB Section 5: Electronic Information Exam braindumps download (ASVAB Section 5: Electronic Information exam dumps Free)

QUESTION: 86

Opposition to current flow is measured in ___________________.

ohms
amps
volts
watts

Answer(s): A

Explanation:

The unit of measure for resistance or opposition to current flow is the ohm. It was agreed on many years ago and has aided in making the electrical field progress so rapidly.

Show Answer Next Question

QUESTION: 87

A watt is the power that gives rise to the production of energy at the rate of _________________.

1 joule per minute
1 volt per second
1 amp per second
1 joule per second

Answer(s): D

Explanation:

The watt is the unit of power in electrical work. It is defined as the production of energy at the rate of one joule per second (per second is the basis for all electrical work).

Show Answer Next Question

QUESTION: 88

The Greek letter phi (φ) is used to ________________.

indicate ohms
indicate angles or phases
indicate volts
indicate dielectric flux

Answer(s): B

Explanation:

The Greek alphabet is used almost in its entirety in the electrical field to represent various quantities and effects. The Greek letter phi (φ) is familiar if you have been looking at three-phase power. It is used to represent the phases of electrical power.

Show Answer Next Question

QUESTION: 89

A parallel circuit with resistors of 10 ohms, 10 ohms, and 5 ohms has a total resistance of ______________.

10 ohms
5 ohms
25 ohms
2.5 ohms

Answer(s): D

Explanation:

Total resistance of a parallel circuit can be found two ways: by using the reciprocal formula or by using the product of two resistors divided by the sum of the two resistors divided by the sum of the two and then using it again to obtain the final answer in the case of three in parallel. In this case the two 10-ohm resistors will reduce to an equivalent of 5 ohms. This leaves, then, two 5-ohm resistors in parallel, which reduce to 2.5 or half of the value of one.

Show Answer Next Question