Ch 3 Flashcards
(120 cards)
1
Q
What roles do stairs provide
A
Access to upper level
Egress
2
Q
What stairs do not provide a means of egress
A
Convenience
3
Q
How many levels to convenience stairs connect
A
2
4
Q
What are the tread and riser commonly referred to as
A
Rise and Run
5
Q
Stairs with open sides must include
A
Hand rails
6
Q
What are pre fab stairs held together by
A
Gussets
7
Q
How many common types of stairs are there
A
6
8
Q
What are the common types of stairs
A
S R R S C F S
9
Q
What stairs extend in a full run, 1 direction
A
Straight run
10
Q
What type of stair is common in modern construction
A
Return
11
Q
What stairs have a landing between floors
A
Return
12
Q
What stairs have separate sets of stairs
A
Scissor
13
Q
What stairs are cheaper and space efficient
A
Scissor
14
Q
What stairs use return stairs for the safety of occupants
A
Scissor
15
Q
What stairs need more hose to connect to the standpipe
A
Scissor
16
Q
How many levels to circular stairs serve
A
2
17
Q
What is the minimum width of return for circular stairs
A
10 in
18
Q
What stairs are tapered and connect to the column
A
Spriral
19
Q
What stairs are used primarily in residential
A
Spiral
20
Q
Where are spiral stairs allowed to be part of egress
A
Residential
21
Q
What stairs provide access to attic space
A
Folding
22
Q
What stairs are commonly found in hotels and multi story buildings
A
Exit
23
Q
What stairs are naturally ventilated on 1 or more sides
A
Exterior
24
Q
What consists of a swinging stair to limit access
A
Fire escape
25
When are smoke proof stair enclosures required
5 stories or higher
26
What types of smoke control do smoke proof stairs use
Active
| Passive
27
Where are smoke proof stair enclosures accessed from
Vestibule
28
Where are smoke proof stair enclosures typically located
Exterior perimeter
29
Which type of conveyors are in enclosed compartments
Screw
| Pneumatic
30
How are conveyor systems protected
Fire doors
Shutters
Water system
31
What is the standard escalator speed
100ft per min
32
What speed do older escalator operate at
90
| 120 ft per min
33
What is the common protection for vertical openings
Sprinklers
| Draft Stops
34
Where are moving walkways found
Airports
35
How many levels do elevators serve
2 or more
36
What are elevator regulations based on
ANSI 17.1
37
What are the classifications of elevators
Passenger
Freight
Service
38
What type of elevators do not have brakes
Hydraulic
39
What are the 2 common types of power used in elevators
Electric
| Hydraulic
40
What is the practical floor limit of hydraulic elevators
6 stories
41
What are the 4 types of elevators
Drum
Traction
MRL
Dumbwaiter
42
What are dumb waiters intended for
Cargo
43
What are MRL elevators intended for
Passengers
44
Which elevator is most common in buildings over 6 stories
Traction
45
Where is the drive equipment located for a traction elevator
Machine room over hoistway
46
What do traction elevators use to reduce energy to raise the elevator
Counterweights
47
Operating heights may require the use of how many volts
500
48
What motors directly aide in stopping the car
AC
49
What elevator motor do brakes not stop the car
DC
50
What are the most common types of power used for elevators
Electric
| Hydraulic
51
Which elevators have controls that are remotely located
MRL
52
In low rise buildings, what do hoistways consist of
Gypsum
53
In tall buildings, what are hoistways poured with
Concrete
54
How long are hoistways fire rated for
1-2 hrs
55
What walls do elevator shafts and stair shifts use
Shear walls
56
What acts as a vertical chimney to spread fire
Hoistways
57
How many hoistways do 4 or more elevators require
2
58
How many floors does a zone include
15-20
59
What hoistways are used for elevators that serve upper zones
Blind
60
Where are access floors placed
Every 3 floors
61
What will not allow the car to move if the doors are open
Electric interlocks
62
Electric interlocks are not required on what elevators
Freight
63
Electric interlocks are required on what exit
Side
64
Where are elevator keys secure
Lock box
65
Which openings do not include horizontal fire boundaries
Vertical
66
Refuse chute is required to be made of
Noncombustable material
67
Where are sprinklers required for a chute
Top
| Termination room
68
What is the primary purpose of HVAC
Create a comfortable environment
69
What allows airflow through a building for ventilation
Cupolas
70
Duct detectors are provided when exceeding how many square feet
2000
71
What fuels are used in heating
Natural Gas
| Oil
72
What hazards are associated with cooling equipment
Refrigerate
| Electricity
73
What is the distribution component of HVAC
Ducts
74
What NFPA provides requirements of ducts
90A
75
What are the 2 fire ratings for HVAC duct
1 hr for less than 4 stories
| 2 hr for more than 4 stories
76
What 2 ways are smoke control mode activated
Automatic
| Manual
77
What is the primary advantage of automatic smoke control system
Fast activation
78
What mode is used to prevent the recirculation of smoke
Smoke control
79
What is the primary disadvantage of an automatic smoke control system
Number of elements to coordinate
80
What operating mode takes priority over automatic
Manual
81
What is the disadvantage of manual operation
Slow activation
82
What is the minimum feet smoke and heat vents open
4
83
What increases smoke vent effectiveness
Draft curtains
84
What is the depth size of smoke curtains
20% of ceiling height
85
What NFPA determines the required vent area
204
86
What is of maximum value for removing products of combustion in sprinklered buildings
Roof vents
87
What protects stairways from products of combustion
Pressurized stairwell
88
What system provides a more uniform flow into the stairwell
Multi injection
89
What system allows for airflow adjustment into stairwell
Compensated
90
What is high voltage defined as
600 volts or higher
91
What are the 2 most common methods for cooling transformers
Air
| Oil
92
Air cooled transformers are known as
Dry
93
Where are dry transformers designed for use in
Sprinklered rooms
94
What is the fire rating for transformers protected by sprinklers
1 hr
95
How many gallons is the day tank limited to
60
96
What is the fire rating for transformers not protected by sprinklers
3 hr
97
How far are draft curtains placed apart
Not more than 8 times the ceiling height
98
What type of elevator is the top exit optional
Hydraulic
99
When is a top exit provided on a hydraulic elevator
If the system has a manual lowering valve
100
Top panels are not required on what elevators
Freight
101
What is a special requirement for circular stairs
Small radius is equal to or greater than twice the widest part of the stair tread
102
What is the primary safety hazard at conveyor penetration
Incomplete door or shutter closure
103
How deep is the draft stop
18 in
104
How are hydraulic elevators controlled
Hydraulic fluid
105
What is the most common elevator in buildings over 6 stories
Traction
106
What are elevator safeties designed to do
Stop a free falling car
107
What elevators do not have car door locks
Passenger elevator
108
How are metal lid vents opened
Manually
Fusible link
Detectors
109
Where are smoke towers located
Periphery of the floor plan
110
What is a limitation of a single injection system
All of the air pressure can flow out of the stairwell
111
What system negates the primary limitation of the single injection system
Multipoint system
112
What does low voltage equipment operate at
Less than 600 volts
113
What do dry transformers step the voltage down to
120
114
What is required for transformers containing PCB
A label
115
Where are scissor stairs found
Airports
Malls
Convention
Cinema
116
Where is the electric motor for passenger elevators located
On top of the car
117
How are metal vents operated
By spring
118
What stairs have a landing between floors
Return
119
What are folding stairs held in place by
Coil/gas spring
| Counter weights
120
What is provided at the top of the escalator to provide vertical opening protection
Rolling shutter
