ctd 250 chapter 5 quiz
An overcurrent protection device that works by melting a small metal strip is called A fuse A short circuit A circuit breaker A ground fault circuit interrupter (GFCI)
D-WRONG C
Which most accurately describes delivery of wiring under full access floors? Access flooring systems are not used in spaces with heavy cabling requirements. Electrical conduits, junction boxes, and cabling run below panels supported on adjustable pedestals. Access flooring systems raise the floor at least 36". The full access floor system construction is not usually fire resistant.
D-WRONG
A type of dimmer control that requires the light to be dimmed completely before the switch action occurs is called Maintained Dimmer Single-Action Dimmer Preset Dimmer Single Switch Dimmer
B
The measurement of a specific density of lumens of light leaving a surface or source in a specific direction is called Exitance Luminance Illuminance
B
The most accurate general term for the type of electricity used in buildings is Static electricity Current electricity Hydroelectric Lightning
B
The precision accenting of artwork would be created by a light source that is Ambient Directional Diffuse Radiant
B
Which of the following most accurately describes electrical cables? Two types of insulated cables are Nomex and FX armored cable. Cables are often used for residential wiring. Insulated cables in open raceways are commonly used in residential installations. Busways and busducts are terms used to describe exposed insulated cables.
B
Track lighting would best be described as adjustable focal accent all of the above
B-WRONG
Which of the following is a type of glare that occurs when a light source is bounced off a surface such as a white book page? Veiling reflection Direct glare Specular reflection Discomfort glare
B-WRONG
A type of dimmer control that requires the light to be dimmed completely before the switch action occurs is called Maintained Dimmer Single Switch Dimmer Single-Action Dimmer Preset Dimmer
B-wrong
A device that opens and closes a circuit at specific times each day is called a Photoswitch Occupancy Sensor Time Clock Timer Switch
C
Which of the following is currently being discontinued as it uses more energy to produce heat than light? Solid state lighting LED lighting Incandescent lighting Fluorescent lighting
C
Light in a space appears brighter when applied to a surface in the ______________ position. upper horizontal lower vertical
a-wrong try c next
A type of toplighting is a Skylight Monitor Clerestory All of the above
d
Lighting that radiates overall illumination for seeing and walking within a space is called Task Lighting Ambient Lighting Accent Lighting General Lighting
D-WRONG
A device attached to an outlet that breaks the circuit when it detects misdirected electrical currents or ground faults is called a NEC Polarized Outlet CIO GFCI
D
The damage of delicate materials due to direct lighting from the sun is called daylighting oxidation hydrolysis photodegradation
D
A unit of electricity flowing along a circuit is called An amp An ohm A watt A volt
a
An example of sidelighting Light shelf Ceiling mounted luminaire Direct lighting fixture Single Clerestory
a
Lighting that is focused on decorative forms is called Accent Lighting Ambient Lighting Task Lighting General Lighting
a
The damage of delicate materials due to direct lighting from the sun is called photodegradation daylighting hydrolysis oxidation
a
According to the NEC, no point on a wall behind a countertop is permitted to be more than ____ feet from a convenience receptacle. 6 2 4 3
a-wrong
Which best describes when electrical conduit is required by code? For all wiring within a wall For all wiring in a single-family residence For all wiring in nonresidential occupancies For all wiring in fire-resistant construction
a-wrong
Minimum amount of radiant lighting required by code for a space is called Task Lighting General Lighting Ambient Lighting Accent Lighting
b
Which of the following is best described as a complete conduction path that carries electrical current from a source of electricity to and through some electrical device and back to the source? A short circuit A series circuit An electrical circuit A parallel circuit
b-wrong
The National Electrical Code is published by NECC ICC NFPA NEC
c
Which most accurately describes delivery of wiring under full access floors? Access flooring systems are not used in spaces with heavy cabling requirements. Access flooring systems raise the floor at least 36". Electrical conduits, junction boxes, and cabling run below panels supported on adjustable pedestals. The full access floor system construction is not usually fire resistant.
c
Which of the following is currently being discontinued as it uses more energy to produce heat than light? Fluorescent lighting LED lighting Incandescent lighting Solid state lighting
c
Which of the following is used for overall, general lighting? Accent lighting Focus lighting Ambient lighting Task lighting
c
When lamps age and luminaires get dirty causing the lighting level to drop, it is referred to as Maintained light levels Peak light levels Sustained light levels Initial light levels
c-wrong
A top lighting system that uses a skylight with a shading device above is called a Monitor Shielded Skylight Clerestory Bounced Skylight
c-wrong b
How large is an A-19 lamp? 2-3/8" 4-3/4" 3" 2.3"
c-wrong try a next
A common voltage for large commercial buildings, in which the power is not stepped down to the more common 120 volts, is 312 volts 240 volts 360 volts 277 volts
d
The least useful and most hazardous type of daylighting is Diffused Sunlight Daylight Accenting Skylight Direct Sunlight
d
High contrasts between lighting layers in a space create more relaxing rooms. True False
false
The decorative layer of lighting would include ceiling surface lights. True False
true
Lighting that is focused on a specific task such as reading, sewing, grooming or cooking is called Task Lighting Ambient Lighting Accent Lighting General Lighting
A
The National Electrical Code is published by NFPA ICC NECC NEC
A
Which most accurately describes the layout of residential electrical receptacles? Lay out convenience receptacles so that no point on a wall is more than 12 feet from an outlet. Only countertop convenience outlets located within 3 feet of a sink are required to be of the GFCI type. It is often advisable to combine receptacles and switches into a single outlet placed high on the wall. Countertop outlet spacing is governed by the NEC.
A
An example of sidelighting Single Clerestory Light shelf Ceiling mounted luminaire Direct lighting fixture
A-WRONG
The creation of soft scallops with a PAR lamp would be created by a light source that is Indirect Ambient Diffuse Directional
A-WRONG
Daylighting techniques incorporate shading techniques and devices. True False
TRUE
The focal layer of lighting is accent lighting. True False
TRUE