UTA4 Fire Protection Systems Flashcards

1
Q

What are reproduced copies of mechanical or technical drawings? (Page 4-1)

A

Blueprints

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2
Q

What term is defined as the ability to interpret the ideas of others expressed on drawings and sketches? (Page 4-1)

A

Reading print

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3
Q

What drawings are used for exploring design concepts between the designer and the user (customer), making material selection, determining preliminary cost estimates, and as a basis for preparing the finished working drawings? (Page 4-1)

A

Preliminary

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4
Q

What drawings show the proposed building or facility in an attractive setting in its natural surroundings at the proposed site? (Page 4-1)

A

Presentation

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5
Q

In the preparation of electrical drawings, most engineers use symbols adopted by the what? (Page 4-3)

A

American National Standards Institute (ANSI)

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6
Q

What is the starting point for any building that is to be constructed? (Page 4-5)

A

Plot plan

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7
Q

What drawing includes the layout of all interior and ex- terior walls, including windows and doors? (Page 4-5)

A

Floor Plan

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8
Q

What is a tabulated statement of the material required for a given project? (Page 4-5)

A

Bill of Material (BM)

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9
Q

What is defined as a line drawing that shows the arrangement and/or relationship of parts? (Page 4-6)

A

Electrical diagram

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10
Q

What diagram is a drawing that shows the electrical plan of operations of a piece of equipment or component? (Page 4-8)

A

Schematic

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11
Q

What is a systematic method of presenting notes and information in tabular form? (Page 4-13)

A

Schedule

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12
Q

What type of automatic sprinkler system is most commonly used?

A

Wet pipe

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13
Q

In a dry-pipe sprinkler system, the entire system should be checked for tightness when air pressure losses exceed what value?

A

10 psi

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14
Q
Gaseous extinguishing systems are normally located in which of the following areas?
A. Computer operation centers
B. Radio receiver buildings
C. Power generating facilities
D. Each of the above
A

D. Each of the above

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15
Q

What type of gas is used as a propellant for a dry chemical system?

A

Carbon dioxide

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16
Q

All automatic sprinkler systems have which of the following characteristics in common?

A

Water supply
Piping network
Sprinkers

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17
Q

In a dry pipe system, the pipes can contain air or what other element under pressure?

A

Nitrogen

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18
Q

In a differential dry pipe valve system, the air must be maintained at least how many psi greater than the trip pressure?

A

20 psi

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19
Q

When debris in the water is a problem, you should use what type of dry pipe valve?

A

Low differential

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20
Q

What type of automatic sprinkler system should you use in an aircraft hangar?

A

Water deluge

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21
Q

Pre-prime plugs blow out of the sprinklers at approximately what water pressure?

A

20 psi

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22
Q

Automatic sprinklers have orifices graduated in what size increments?

A

1/16 inch

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23
Q

A fusible link sprinkler is kept closed by a two-piece link fused together by what type of metal?

A

Solder

24
Q

A dry pendent sprinkler is used when the system is exposed to which conditions?

A

Freezing

25
Q

A dry pipe alarm system has which characteristic?

A

Slow acting

26
Q

The retard switch connected to the alarm port of a wet sprinkler system alarm- check valve is normally set within what pressure range?

A

8 to 15 psi

27
Q

In an electronic pressure-drop detector, an overpressure condition of what magnitude can cause a trouble signal?

A

200 psi

28
Q

To prevent freezing of water in a fire protection system, a Utilitiesman normally installs a supervisory device in a pipe or reservoir with what low water temperature setting?

A

40° F

29
Q

At what interval should you inspect and test the general condition of sprinkler heads and sprinkler systems?

A

Annually

30
Q

At what interval should you inspect and test water level in tanks?

A

Weekly

31
Q

At what interval should you inspect and test water flow alarms?

A

Monthly

32
Q

At what interval should you inspect and test air and water pressure in dry pipe systems?

A

Weekly

33
Q

At what interval should you inspect and test general condition of standpipe systems?

A

Quarterly

34
Q

At what interval should you inspect and test general condition of hydrants?

A

Annually

35
Q

What minimum distance must be maintained beneath a sprinkler for proper water distribution?

A

18 inches

36
Q

What type of test should be performed quarterly to test the alarm-check valves?

A

2-inch drain test

37
Q

When testing a water clapper valve designed to trip at a fixed pressure of 10 to 15 psi, you should maintain what minimum air pressure on this valve?

A

30 psi

38
Q

When performing a basic inspection of accelerators and exhausters, you should check what pressure?

A

Air

39
Q

When testing deluge and pre-action valves, you should perform the 2-inch drain test at what time interval?

A

Quarterly

40
Q

When performing a deluge valve dry trip-test in a flammable area, you should use what test in place of the electric test set?

A

Hot water or hot cloth

41
Q

When performing the cathodic protection test with an ammeter, you notice a diminishing current flow. This is an indication of what type of problem?

A

Failing electrodes

42
Q

Under normal circumstances, full operational testing of high-speed suppression systems should be conducted at intervals not to exceed how many years?

A

3

43
Q

What characteristic of carbon dioxide makes it desirable for use on electrical fires?

A

Electrical non-conductivity

44
Q

What is the normal cylinder pressure in a high-pressure system?

A

600 psi

45
Q

In a low-pressure system, liquid carbon dioxide should always be maintained at what constant (a) pressure and (b) temperature?

A

(a) 300 psi (b) 0°F

46
Q

High-pressure systems require approximately how many pounds of equipment for every pound of carbon dioxide stored?

A

3

47
Q

Pipe and fittings in a high-pressure system have what minimum bursting pressure in psi?

A

5,000

48
Q

Pipe and fittings in a low-pressure system have a minimum bursting pressure of how many psi?

A

1,800

49
Q

What automatic device should be installed along with a total flooding system to conserve carbon dioxide?

A

Automatic closing device

50
Q

Installation of a new Halon 1301 system is prohibited without special approval from whom?

A

NAVFACENGCOM

51
Q

Regardless of the method being used, what device must be attached to the releasing mechanism?

A

Alarm

52
Q

At what maximum time interval should you replace the frangible disks on low- pressure storage tanks?

A

5 years

53
Q

How many types of systems can be used with dry chemicals?

A

3
Hose line
Total Flooding
Local Application

54
Q

What is the most widely used dry chemical?

A

Sodium bicarbonate

55
Q

Dry chemicals are used primarily on what type of fires?

A

Flammable liquid

56
Q

Dry chemical distribution systems are constructed of what schedule of pipe?

A

40