chapter 14 quiz
Dual-element fuse
A(n) _____ is a fuse type that has a time-delay feature built into it and is often used as an overcurrent protection device for electric motor branch circuits.
Red
A(n) _____ switch cover is used to identify an oil burner safety switch.
Carbon monoxide detector
A device that detects the presence of carbon monoxide (CO) gas in order to prevent carbon monoxide poisoning.
Thermostat
A device used with a heating for cooling system to establish a set temperature.
Dual-element fuse
A fuse-type that has a time-delay feature.
Hydronic
A hot water heating system is sometimes referred to as a(n) _____ heating system.
Heat pump
A reversible air-conditioning system.
Smoke detector
A safety device that detects airborne smoke and issues an audible alarm, thereby alerting nearby people to the danger of fire; most smoke detectors work either by optical detection or by ionization, but some of them use both detection methods to increase sensitivity to smoke.
Electric range
A stand-alone electric cooking appliance that typically has four cooking elements on top and an oven in the bottom of the appliance.
Inverse time circuit breaker
A type of circuit breaker that has a trip time that gets faster as the fault current gets larger.
Jet pump
A type of water pump in which the pump and motor are separate items and are located away from the well.
Submersible pump
A type of water pump where the pump and motor are enclosed in the same housing and are lowered down a well casing below the water level.
Cord-and-plug connection
An installation technique in which electrical appliances are connected to a branch circuit with a flexible cord with an attachment plug.
Hard-wired
An installation technique where the circuit conductors are brought directly to an electrical appliance and terminated at the appliance.
True
HACR is an acronym for heating, air-conditioning, and refridgeration..
Toilet, tub, shower
In the NEC, a bathroom is defined as an area that has a basin and a _____.
30
Most residential electric water heaters operate on 240 volts, are wired with 10 AWG conductors, and are protected with a ____ amp overcurrent protection device.
80%
On an individual branch circuit where no other items are served by the circuit, an air conditioner load cannot exceed _____ of the branch-circuit ampacity.
True
The NEC permits low-voltage Class 2 doorbell cable to be run next to 120- or 240-volt branch circuits wired with nonmetallic sheathed cable.
20
The NEC requires a laundry branch-circuit to be rated at _____ amperes.
20 amps
The NEC requires a laundry circuit to be rated at ____.
36
The NEC requires at least one 15 or 20 amp, 125 volt receptacle in a bathroom and it must be located no more than ______ inches from the edge of the basin.
20 amps
The NEC requires that small appliance branch circuits be protected with _____.
Interconnecting
The process of connecting together smoke detectors so that if one is activated, they will all be activated.
True
The receptacle installed for a clothes washing machine located in a laundry area of an unfinished basement must be GFCI protected
Electrical contractor
Who usually decides wether 15 or 20 amp rated general lighting circuits will be installed in a residential electrical system?
True
A receptacle for a gas-fired range is permitted to be connected to a small-appliance branch circuit.
True
A receptacle located under a kitchen sink to serve a cord-and-plug connected garbage disposal must be GFCI and AFCI protected.
Inverse time
A(n) _____ circuit breaker has a trip time that gets faster as the fault current flowing through it gets larger.
36
The NEC requires at least one 15 or 20 amp, 125volt receptacle in a bathroom and it must be located no more than _____ inches from the edge of the basin.
125%
The NEC requires the majority of motor applications to be protected by overload devices sized not more than ____ of the motor's nameplate current rating.
Nameplate
The label located on an appliance that contains information such as amperage and voltage.
2
The minimum number of small-appliance circuits required by the NEC in each house is...
Full load current
The size of the circuit breaker and the circuit conductors is determined by the ____ of the motor.
Hard-wired
When an installation technique is used that brings the circuit conductors directly to an electrical appliance and then terminates them at the appliance, the appliance is said to be _____.
In sight of
When one piece of electrical equipment is visible and not more than 50 feet from another piece of equipment.
12
Instead of installing the required bathroom receptacle on a wall or partition adjacent to the basin, it may be installed on the side or face of the basin cabinet, as long as it is located no more than ____ inches below the countertop.
