Deck 6: Electrical Facilities Maintenance

Question 1

A two-gang nail-up box will have enough room for four yoked devices.

Answer 1

False

Question 2

A megohmmeter, also referred to as a "____," is an instrument used to measure high electrical resistance.

A) analog meter
B) megger
C) m-meter
D) VOM

Answer 2

B

Question 3

When resistance is to be measured, the meter must first be zeroed.

Answer 3

True

Question 4

__________________________ boxes are used whenever a device (receptacle or switch) is installed in a wet location.

Question 5

The cut-in box is made of wood or metal and is used when a device must be installed after the drywall is already in place.

Question 6

The _____ covers the minimum working space, access, headroom, and lighting requirements for electrical equipment such as switchboards, panelboards, and 600 volt or less motor control centers.

A) NEC 70E
B) 29 CFR Part 1926
C) NEC 110.26
D) OSHA standard 1926.417

Question 7

One form of an emergency backup system is the uninterruptible power supply (UPS).

Question 8

Voltage is the flow of electrons through a given circuit.

Question 9

An ammeter should not be connected in series to the load.

Question 10

The most common type of cable that is used in single-family and multifamily dwellings is ____ cable.

Question 11

_____________________________ is a switch is used when a light or fan can be turned on or off from two different locations.

Question 12

NFPA 70E mandates that qualified personnel should never work on any part of an energized electrical system that is over ____ volts AC without the proper arc flash/arc blast PPE.

A) 50
B) 40
C) 30
D) 25

Question 13

_____ ammeters are constructed by connecting a common moving coil type of meter across a shunt.

A) High-impedance
B) Shunt
C) AC
D) DC

Question 14

Power is the electrical work that is being done in a given circuit and is measured in wattage (watts) for a purely resistive circuit or volt-amps (VA) for an inductive/capacitive circuit.

Question 15

Resistance is the opposition to current flow in a given electrical circuit and is measured in ohms.

Question 16

_____ are characterized by the fact that they incorporate a scale and a needle to indicate the value of the electrical property being measured.

A) Voltmeters
B) Analog meters
C) Ammeters
D) Megohmmeters

Question 17

__________________________ switch is used when two separate circuits must be controlled with one switch.

Question 18

Current is the amount of electrical pressure in a given circuit.

Question 19

___________________ switch is used when a light or fan is turned on or off from only one location.

Question 20

Emergency backup systems are designed to keep critical parts of an electrical system energized in the event of power loss.

Question 21

What type of switch is used when a light or fan is turned on or off from only one location?

A) Monodirectional
B) Single-pole
C) Direct current
D) Unidirectional

Question 22

What type of fuses have either an Edison base or a type S base?

A) Double-element
B) Cartridge
C) Plug
D) Breaker

Question 23

The blue insulated conductor is found on in _____-conductor NM cable.

A) one
B) two
C) three
D) four

Question 24

An AC clamp-on ammeter is also called a _____.

A) tang-type
B) megger
C) multimeter
D) circuit interrupter

Question 25

A(n) _____ is constructed to connect across the power source, allowing the technician to measure the potential different between two points.

A) Megohmmeter
B) Analog meter
C) Voltmeter
D) Ammeter