Deck 11: Special Circuits Owners Circuits

Question 1

On lighting controlled by timers, an ____ feature is extremely desirable because it provides sunset ON and sunrise OFF that change automatically day by day as the sunrise and sunset times change every day.

A)astronomic
B)environmental
C)ecologic
D)astrologic

Answer 1

A

Question 2

The lighting circuits that are considered to be the owner's responsibility can be divided into six groups according to the method used to control the circuit, including those under ____.

A)photocell control
B)solar control
C)joint control
D)intermittent operation

Answer 2

A

Question 3

In the boiler heating circuit in the chapter example, the main lugs connect to two ____-kcmil-per-phase conductors run to an 800-ampere switch.

A)200
B)400
C)500
D)600

Answer 3

C

Question 4

Summarize the wiring requirements for a boiler.

Question 5

In a commercial building, it is the ____ responsibility to provide power for the elevator; illumination for the public areas such as hallways, stairways, and public toilet rooms; and heat for the common areas of the building.

A)owner's
B)occupants'
C)municipality's
D)electric company's

Question 6

Describe the wiring for electric elevators, including the roles of the electrical contractor and the elevator contractor.

Question 7

What features are available with electronic and mechanical timers?

Question 8

The luminaires installed for the stairway to the second floor and hallways of the commercial building example in this chapter are ____ when the building is occupied because those spaces have no windows.

A)under manual control
B)in continuous operation
C)on at night
D)under timed control

Question 9

One type of sump pump that is available commercially has a start-stop operation due to water pressure against a ____, which in turn pushes against a small integral switch within the submersible pump.

A)snap switch
B)neoprene gasket
C)steel ell
D)metal cover

Question 10

The sump pump motor is protected by a manual motor starter and is controlled by a ____ switch.

A)photocell
B)snap
C)pressure
D)float

Question 11

In the commercial building example of this chapter, the owner may choose to install an electrically heated ____ to supply heat to all areas.

A)boiler
B)radiator
C)stove
D)furnace

Question 12

The heat sensor in an electrically heated boiler is adjusted so that it closes when the outside temperature falls below a set point, usually ____ degrees Fahrenheit.

A)50
B)65
C)70
D)85

Question 13

With a "____" elevator, the entire elevator lifting mechanism is located in the elevator shaft either on the elevator or on the wall.

A)room-less
B)motor-room-less
C)machine-room-less
D)control-room-less

Question 14

The ____ is(are)an example(s)of equipment that is operated by an automatic control system.

A)stairway luminaire
B)sump pump
C)entrance luminaire
D)exterior luminaires

Question 15

In the commercial building in the chapter example, what do the owner's circuits serve?

Question 16

With an electrically heated boiler, a heat sensor plus a remote bulb is mounted so that the bulb is ____.

A)in direct sunlight
B)on the outside of the building
C)next to the emergency panel
D)in the boiler

Question 17

The building's occupants will each have a(n)____ located within their particular area.

A)circulating pump
B)outdoor heat sensor
C)relay
D)heating thermostat

Question 18

The photocell control device consists of a light-sensitive cell and a(n)____ that increases the signal until it is sufficient to operate a relay that controls the light.

A)motor
B)lens
C)luminaire
D)amplifier

Question 19

How is the sump pump used, and what is the mechanism of control?

Question 20

The circuit to the hot-water circulating pump in the chapter example will be supplied from the ____ so that the water will continue to circulate if the utility power fails.

A)standby emergency boiler
B)external emergency panel
C)optional standby power panel
D)public panel