WorksheetsResidential Wiring Chapter 1
Total questions: 10
Worksheet time: 5mins
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 ____.
Zero
60 Volts
120 Volts
240 Volts
All measurements in the National Electrical Code are shown in which system(s) of units?
inch-pound (English) only
SI (metric) only
both inch-pound and metric values
both natural units and physical units
In the international system of units, the prefix kilo- means ____.
Hundred
Thousand
Million
Bilion
Nationally Recognized Testing Laboratories (NRTL) ____ electrical products to provide a basis for approval by inspectors in the field.
Aprove
Test and List
Develop Standards
Endorse
An arc flash can produce temperatures of ____°F
3,500
15,000
25,000
35,000
As defined in Article 100, a dwelling unit has the following feature(s): ____.
permanent provisions for living, sleeping, cooking, and sanitation
living, sleeping, and basement or storage areas
space for eating, sleeping, and recreation
optional garage space
Footwear suitable for electrical work is marked with the letters ____.
EH
PPE
CF
OSHA
The National Electrical Code is revised every ____ years so as to be as up to date as possible.
two
five
four
three
In the international system of units, the prefix milli- means ____.
one hundredth
one thousandth
one millionth
one billionth
The term approved means to be ____.
acceptable to the National Electrical Code
listed by a Nationally Recognized Testing Laboratory (NRTL)
acceptable to the architect or engineer designing the job
acceptable to the authority having jurisdiction
