Brannigans Building Construction CH.7 Non-Fire Building Systems (PT.2)

Question 1

in a hydraulic elevator, pressurized fluid moves

Answer 1

piston (a.k.a hydraulic jack)

Question 2

under what phase, are elevators recalled to specific floor (USALLY FIRST FLOOR BY ACTIVATION OF SMOKE DETECTOR)

Answer 2

phase 1, doors remain open

Question 3

during what elevator phase FF’s selects one of elevators in bank (group of elevators) to access upper floor and can control elevators using special key and set of procedures

Answer 3

phase 2 operation

Question 4

T or F: often emergency generators are capable of running only a single elevator in each bank

Answer 4

true

Question 5

As a result of the World Trade Center disaster on September 11th 2001 model building codes were modified to include two particularly important Provisions for elevators in new high-rise buildings

Answer 5

Occupant evacuation elevators and fire service access elevators

Question 6

Occupant evacuation elevators and fire service access elevators both require

Answer 6

-Smoke barrier enclosed lobbies
-direct access to a fire rated stairwell
-elevator system monitoring in fire Command Center
-standby power

Question 7

Use for occupant evacuation prior to phase 1 operation of elevator (automatic recall)

Answer 7

Occupant evacuation elevators (phase 3 operation)

Question 8

Occupant evacuation elevators are intended for self evacuation of occupants in buildings more than 420 ft in height as an alternative to an extra mandated stairwell in the building known as

Answer 8

Phase 3 operation

Question 9

These elevators have special protection against water penetration and a two-way Communication System between Lobby and fire Command Center; firefighters can recall these elevators from fire Command Center

Answer 9

Occupant evacuation elevators

Question 10

Fire service access elevators are found in new buildings more than how many feet in height?

Answer 10

120 ft in height

Question 11

Fire service elevator lobbies are a minimum of 150 ft^2 in area and must have what in the fire rated stairwell immediately adjacent to the lobby

Answer 11

Class one hose Outlet in fire rated stairwell

Question 12

Where are elevator power controls usually located for hydraulic elevators and for electric elevators?

Answer 12

First floor for hydraulic elevators
top floor for electric elevators

Question 13

usually metal bars, Used to prevent occupants of an elevator that is stuck between floors from opening car and Shaft doors and falling down Elevator Shaft below

Answer 13

Elevator door restrictors

Question 14

Elevator door restrictors and gauge when elevator cab is located where in landing Zone?

Answer 14

18 in above or below Landing Zone

Question 15

True or false: elevator keys typically do not bypass elevator door restrictors

Answer 15

True

Question 16

An electric motor-driven chain system which individually cast aluminum steps with attached roller wheels are moved in a continuous loop rail system

Answer 16

Escalators

Question 17

The chain and the handrail of an escalator have their own

Answer 17

Drive gear

Question 18

The overall steel frame that supports the escalator is called a

Answer 18

Truss

Question 19

Use a series of flat metal plates (pallets) or synthetic (rubber) belts as the walking surface

Answer 19

Moving sidewalks

Question 20

Switches located at the top and bottom of an escalator that will stop it but will not remove power from the system

Answer 20

Emergency stop switches

Question 21

To remove the power from an escalator use the main disconnect switch/button typically located near

Answer 21

Motor, under inspection plate at top of escalator

Question 22

Sprinklers are rarely found near escalators but may sometimes find

Answer 22

Smoke detectors or line type heat detectors

Question 23

ASHRAE

Answer 23

American Society of heating refrigerating and air-conditioning engineers

Question 24

Heart of refrigeration system; fluid that has ability to expand and contract absorbing and releasing heat to and from surrounding environment

Answer 24

Refrigerant

Question 25

Refrigerant gas is pressurized to high pressure at

Answer 25

Compressor

Question 26

Refrigerant gas under high pressure and temperature releases heat to surroundings area at

Answer 26

Condenser

Question 27

Where is the refrigerant allowed to expand and in doing so lowered in terms of pressure and temperature

Answer 27

Expansion valve

Question 28

When refrigerant moves onto this step its coolness/coldness reduce temperature of surrounding area creating desired cool temperature

Answer 28

Evaporator

Question 29

Refrigerant move through closed loop system starting at compressor and moving on to

Answer 29

-Condenser -expansion valve -evaporator

Question 30

Cooler storage temperature (for storing Foods)

Answer 30

32*F to 65*F

Question 31

Chill rooms temperature (for curing meat)

Answer 31

16 to 35*F

Question 32

Freezer or holding room temperatures (for storing frozen foods)

Answer 32

10 TO 5*F

Question 33

Sharp freezer temperature (for initial freezing and normal freezing)

Answer 33

35 to 0*F

Question 34

Refrigerants such as freon (banded many years ago) are under great scrutiny because

Answer 34

Effects on ozone depletion and their contribution to global warming

Question 35

New refrigerant have very short atmospheric times which has led to refrigerants being more

Answer 35

Flammable

Question 36

ASHRE developed a system of refrigerant classification that brings together both what using number and letter system

Answer 36

Flammability and toxicity

Question 37

Refrigerant classification letter and number refer to what?

Answer 37

Letter= toxicity Number= flammability

Question 38

Refrigerant classification letter A & B stand for

Answer 38

A = lower toxicity B= higher toxicity

Question 39

Refrigerant classification numbers 1-3 stand for

Answer 39

1= do not propagate Flame 2= low flammability 3= High flammability

Question 40

The level of flammability of refrigerant is based upon what?

Answer 40

Flame velocity

Question 41

Isobutane and Propane possess low toxicity and are highly flammable are classified as

Answer 41

A3

Question 42

Carbon dioxide used as a refrigerant is classified as

Answer 42

A1

Question 43

Ammonia given both its toxicity and flammability is classified as

Answer 43

B2L

Question 44

Contain requirements to address emergency situations for leaks in refrigeration systems that use flammable or toxic refrigerants

Answer 44

Model fire codes such as international fire code & NFPA 1 fire code handbook

Question 45

For refrigeration systems model fire codes require what that will automatically shut down compressors and move refrigerant from high pressure zone to low pressure Zone as well as flaring systems to burn off flammable refrigerants

Answer 45

Automatic emergency pressure control systems

Question 46

Refrigerant leak alarm and detection systems and dedicated emergency ventilation systems are required by

Answer 46

Fire codes

Question 47

Some cold storage facilities and ice hockey arenas have returned to using what liquid refrigerant

Answer 47

Ammonia

Question 48

Shipped as a non flammable material but is flammable with the flammable range of 16-25%

Answer 48

Ammonia

Question 49

Install to dump ammonia from refrigeration system in event of emergency such as fire threatening refrigeration system or ammonia gas releasing from brake and system and collecting in building creating an explosive situation or toxic atmosphere

Answer 49

Ammonia diffusion system

Question 50

Diffusion systems of ammonia consist on high and low pressure side of refrigeration system which terminate where

Answer 50

Specially designed and properly labeled fire department control box on outside of building

Question 51

Fire Department control box for ammonia will typically have

Answer 51

Pressure gauges and Equalization valves and emergency switch to shut down all compressors

Question 52

What must be provided for each pound of ammonia

Answer 52

Permanent water supply capable of providing at least 2 gallons

Question 53

What allows fire department to pump directly into ammonia diffusion system

Answer 53

FDC

Question 54

Work as a mixing vessel for ammonia (water storage tank or water basin)

Answer 54

Diffuser

Question 55

After water and ammonia are mixed in diffuser it is discharged to

Answer 55

Sewer system for disposal

Question 56

Medical gases supplied by medical gas piping systems include

Answer 56

Oxygen (oxidizer) Nitrous oxide (oxidizer) Nitrogen Carbon dioxide Helium medical air (for patients) Instrument air (for surgical equipment) Ethylene (FLAMMABLE GAS)

Question 57

Medical gas piping systems used bulk storage containers with the medical gases stored either

Answer 57

Under pressure or cryogenically

Question 58

Medical gas distribution piping system typically made of

Answer 58

Copper

Question 59

Medical distribution piping have what to isolate specific portions of system

Answer 59

Shut off valves

Question 60

In facilities that use large quantities of oxygen what is installed

Answer 60

Cryogenic storage systems

Question 61

Often use high-pressure cylinders and portable cryogenic containers

Answer 61

Gas is needed in smaller quantities

Question 62

Restaurant have switched to using what system for use and their carbonated beverages

Answer 62

Large-capacity carbon dioxide storage systems

Question 63

What are the three components of newer carbon dioxide storage systems

Answer 63

Large-capacity stainless steel tanks (300-750 gal) Piping system Phil box on the outside of building

Question 64

What is required for carbon dioxide storage system since it is an asphyxiant and leaking can be deadly

Answer 64

Carbon dioxide detection and alarm systems

Question 65

Heavier than air gas and we'll collect and low points such as basements

Answer 65

Carbon dioxide

Question 66

Emergency generators need a power supply to start them mainly use

Answer 66

Lead acid batteries

Question 67

Even after a sectional isolation valve is closed a water leak in pipe will continue to flow as long as

Answer 67

There is water in portion of system Beyond valve; consider using hazardous materials patching to stop flow

Question 68

Other than very minor sewage backups all sewer piping breaks and backups inside a building require

Answer 68

Full PPE including SCBA

Question 69

Unless natural gas leak quickly identify it is usually best to shut off gas to a building or unit at

Answer 69

Main service valve

Question 70

Odorant placed in natural gas to alert individuals to a leak can be stripped from gas as it travels Underground through soil

Answer 70

Mercaptan

Question 71

In some cases turning off the power to a stalled elevator car and then turning it back on again will allow car to move normally to a desired location this procedure show only be used

Answer 71

once

Question 72

When possible remove trapped individuals from a stalled traction elevator car to the lobby floor above using

Answer 72

Roof hatch (minimizes possibility of falling down shaft)

Question 73

reports of a leak involving a refrigeration system should initiate an immediate response of

Answer 73

Hazardous materials team

Question 74

at a refrigeration system leak initial efforts involving full PPE equipped FF's should be focused on

Answer 74

Evacuation of occupants and surrounding exposures

Question 75

If an ammonia diffusion system is to be used to send diluted ammonia refrigerant through sanitary sewer system who must be notified

Answer 75

Affected sewage treatment plant

Question 76

Given High Vapor density of carbon dioxide a leak from a beverage system can collect in rooms and in low points what is required for any response involving the systems

Answer 76

SCBA and aggressive ventilation for below grade areas

Question 77

Newest type of power supply

Answer 77

Energy storage systems