True/False
Indicate whether the sentence or statement is true
or false.
|
|
|
1.
|
The
unit of measure of length in the metric system is the foot.
|
|
|
2.
|
Mass
is used as a standard instead of weight because weight differs with the pull of
gravity.
|
|
|
3.
|
The
minute is the standard unit of time measurement in the metric system.
|
|
|
4.
|
The
Kelvin temperature scale sets absolute zero at 0º.
|
|
|
5.
|
Some
meters emit a sound (constant audible warning) when the test leads are connected in the current jacks
and a noncurrent mode is selected.
|
|
|
6.
|
The
main reason for the increase in the use of digital electronic technology is that digital meters have
far greater measuring capabilities than analog meters, in a much smaller space.
|
|
|
7.
|
Insulating gloves and protector gloves found to be defective are still safe to use in
some situations.
|
|
|
8.
|
All
exposed electrical installations and the power panels of a facility are considered high-voltage
areas.
|
|
|
9.
|
When
handling a victim of an electrical shock accident, break the circuit to free the victim immediately,
even if it means touching the victim’s body when it is in contact with the
circuit.
|
|
|
10.
|
Rubber insulating matting is a personal protective device that provides electricians
protection from electrical shock when voltages are over 50 V.
|
Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
11.
|
One
of the earliest standards for the measure of length was the ___, which was developed in ancient
Egypt. a. | pace | b. | mile | c. | foot | d. | cubit | | |
|
|
|
12.
|
The
___ determined time by the relationship of the movements of the Earth to the stars. a. | Romans | b. | Greeks | c. | Babylonians | d. | Chinese | | |
|
|
|
13.
|
The
absolute zero scale in centigrade is measured in ___. a. | kelvins | b. | degrees | c. | meters | d. | quarts | | |
|
|
|
14.
|
A ___
signal word indicates an imminently hazardous situation, which, if not avoided, results in death or
serious injury. a. | danger | b. | warning | c. | caution | d. | risk | | |
|
|
|
15.
|
A
disadvantage of digital test instruments and meters is that they ___. a. | display
measurements as numerical numbers | b. | are autoranging | c. | can display
ghost readings when in the automatic range setting mode | d. | none of the
above | | |
|
|
|
16.
|
Electrical test equipment should have ___. a. | double-insulated
test leads | b. | recessed input jacks on the meter | c. | shrouds on the
test lead plugs | d. | all of the above | | |
|
|
|
17.
|
A ___
occurs due to lightning strikes, unfiltered electrical equipment, and power being switched ON and
OFF. a. | voltage
sag | b. | transient
voltage | c. | voltage interruption | d. | momentary
voltage | | |
|
|
|
18.
|
An
___ is an explosion that occurs when the air surrounding electrical equipment becomes ionized and
conductive. a. | electrical
detonation | b. | air blast | c. | arc
blast | d. | arc flash | | |
|
|
|
19.
|
A ___
is an accepted reference or practice. a. | code | b. | standard | c. | law | d. | none of the above | | |
|
|
|
20.
|
___
is an organization that assists with information and standards concerning proper selection, ratings,
construction, testing, and performance of electrical equipment.
|