Deck 1: General Information for Electrical Installations

Question 1

In the international system of units, the prefix kilo- means ____.

A) hundred
B) thousand
C) million
D) billion

Answer 1

B

Question 2

The meaning of approved is ____.

A) listed by a Nationally Recognized Testing Laboratory (NRTL)
B) acceptable to the National Electrical Code
C) acceptable to the architect or engineer designing the job
D) acceptable to the authority having jurisdiction

Answer 2

D

Question 3

An arc flash can produce temperatures of ____°F.

A) 3,500
B) 15,000
C) 25,000
D) 35,000

Answer 3

D

Question 4

Always ____________________ the power before working on an electrical circuit.

Question 5

The National Electrical Code is a minimum ____ standard.

A) quality
B) safety
C) product specification
D) electrical product listing

Question 6

To prevent confusing detail in the working drawings, it is standard practice to include with each set of plans a set of detailed written ____________________ prepared by the architect.

Question 7

What is the NEC definition of a "Qualified Person"?

Question 8

For safety, it is very important that electrical equipment be "listed" by the ____.

A) NEC
B) OSHA
C) NRTL
D) ANSI

Question 9

Nationally Recognized Testing Laboratories (NRTL) ____ electrical products to provide a basis for approval by inspectors in the field.

A) approve
B) test and list
C) develop standards
D) endorse

Question 10

As defined in Article 100, a dwelling unit has the following feature(s): ____.

A) permanent provisions for living, sleeping, cooking, and sanitation
B) living, sleeping, and basement or storage areas
C) space for eating, sleeping, and recreation
D) optional garage space

Question 11

What is the purpose of the National Electrical Code?

Question 12

In the international system of units, the prefix milli- means ____.

A) one hundredth
B) one thousandth
C) one millionth
D) one billionth

Question 13

The authority having jurisdiction over electrical construction is generally the ____________________.

Question 14

The architect uses symbols and notations to ____ concerning electrical devices, appliances, and equipment.

A) allow bilingual plans by eliminating words
B) simplify the drawing and presentation of information
C) provide a code to prevent untrained persons from doing work
D) ensure that a contractor obtains the specified item

Question 15

The use of the word shall indicates a(n) ____________________ rule.

Question 16

All measurements in the National Electrical Code are shown in which system(s) of units?

A) inch-pound (English)
B) SI (metric)
C) both inch-pound and metric values
D) both natural units and physical units

Question 17

Nationally Recognized Testing Laboratories (NRTL) test and evaluate products for ____________________.

Question 18

The open-circuit voltage between the two terminals of a single-pole switch on a lighting circuit when the switch is in the OFF position is ____.

A) zero
B) 60 volts
C) 120 volts
D) 240 volts