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State Pump Ops > Study Guide 1 > Flashcards

Study Guide 1 Flashcards

1
Q

There must be at least how much water over the strainer?

A

24”

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2
Q

NFPA 1901 requires that all apparatuses with a GVWR of 36,000 lbs or greater be equipped with?

A

auxiliary braking system

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3
Q

when backing an apparatus, sound how many blasts immediately beforehand?

A

2

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3
Q

when do palms face spotter using both arms?

A

when backing straight

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4
Q

boundaries between wildland and structural development are called?

A

wildland urban interface

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5
Q

if you have to drive into smoke area where crews operate, you must?

A

sound horn, use warning lights, drive slowly

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6
Q

water tender must carry how many gallons?

A

1,000 gallons

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7
Q

law of inertia states that?

A

an object in motion, stays in motion. objects at rests, stays at rest, unless acted upon by outside force.

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8
Q

what speeds do emergency vehicles out run audible devices?

A

50 mph

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9
Q

which NFPA requires water tenders to be filled at a rate of at least 1,000 gallons?

A

1901

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10
Q

what caused green light for fire apparatus in direction of travel and reds for others?

A

preemption device

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11
Q

any wildland fire attack should begin in and positioned in an

A

anchor point

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12
Q

any apparatus with less than _____ must have a tank fill line of at least 1 inch

A

1,000 gallons

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13
Q

what is the advantage of a bursh truck?

A

pump and roll

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14
Q

average brush truck carries how much water?

A

500 gallons

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15
Q

Road test are performed with?

A

fully loaded truck at service weight

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16
Q

float strainers have a minimum depth of?

A

1 foot

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17
Q

float pumps are capable of producing?

A

500 gpm

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18
Q

the height that a column of water that may be lifted by atmospheric pressure in a true vacuum at sea level is called?

A

theoretical lift

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19
Q

how many feet an theoretical lift a column of water?

A

33.9 feet

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20
Q

in theoretical lift, as the elevation increases, the height will?

A

decrease

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21
Q

Max lift in a fire truck?

A

25 feet

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22
Q

what are common types of skidding?

A

acceleration & locked wheel

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23
Q

NFPA 1901 specifies that the minimum pump capacity for pump design is?

A

750 gpm

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24
Q

portable generators are designed to provide power at?

A

5,000 watts

25
Q

the section of the pump that gradually increases in cross sectional area as it nears the discharge outlet of the pump is the?

A

volute

26
Q

when a pumper is connected to a hydrant, and 1st line is opened, the residual pressure will drop 20%. This indicates the hydrant should be able to supply?

A

one additional set up same size

27
Q

when using a centrifugal pump to supply hose line and nozzle is shut off quickly, the pressure travels back to?

A

water main

28
Q

if the speed of stream of water is increased beyond limits, and friction loss becomes so great that the stream is agitated by resistance, this is known as?

A

critical velocity

29
Q

master stream flows at?

A

350 gpm

30
Q

back pressure is also known as

A

head pressure

31
Q

what flow test is done when an apparatus is equipped with onboard water tank?

A

tank to pump

32
Q

pump certification tests performed by?

A

independent testing organizations

33
Q

if pump fails to reach _____ inch of mercury, remove the apparatus from service

A

22

34
Q

what braking system are most commercial and private vehicles (built since 1990) equipped with?

A

anti-lock braking

35
Q

which brake is the least capable of the four auxiliary brake devices?

A

exhaust

36
Q

pump rating NFPA 1901: percentage rate capacity at 150psi, 200psi, & 250psi?

A

100%, 70%, 50%Vo

37
Q

Volunteer FD should inspect/maintain trucks at least?

A

weekly/biweekly

38
Q

fire apparatuses with pump rated capacity less than 750 gpm are required to undergo same certification test as pumps over 750 with exception of?

A

pumping engine overload test

39
Q

hydrostatic test performed to ensure that the pump can with stand high pressure pumping demands: ____ psi for minimum of _____ min?

A

500/10

40
Q

pumping test checks overall condition of

A

engine and pump

41
Q

pitot tube used to find flow pressure at?

A

discharge opening

42
Q

air horn stops working at?

A

drops below 80 psi

43
Q

rescue vehicles commonly have generators with capacity up to?

A

50,000 watts

44
Q

what improves traction and handling by locking the differential during off road/wet conditions?

A

driver controlled differential lock

45
Q

what occurs when throttle is applied in manual transmission in too high a gear for the demand of the engine?

A

lugging

46
Q

why should a small line be left discharging when running a drafting opperation?

A

if no water discharged, the smallest air leak may result in loss of vacuum

47
Q

a _______ is also called a throttle knob?

A

vernier

48
Q

air exhaust and vacuum are different types of?

A

primers

49
Q

what may use jet siphoning devices to transfer water from one tank to another?

A

portable tanks

50
Q

what pump must be primed before operation?

A

centrifugal pump

51
Q

a term for apparatus that is empty with no tools or gear?

A

curb weight

52
Q

what is the forward velocity pressure at a discharge opening when water is flowing?

A

flow pressure

53
Q

what is a gauge that indicates amount of electrical current being drawn?

A

ammeter

54
Q

which pilot valve is the most common type of pressure relief valve?

A

spring controlled

55
Q

NFPA requires FD to water tank capacity of at least?

A

300 gallons

56
Q

operating from negative pressure can increase the possibility of what happening to fire pump?

A

cavitation

57
Q

what is a device used for measuring existing voltage in an electrical system?

A

voltmeter

58
Q

fog nozzle pressure is?

A

100 psi

59
Q
A

State Pump Ops (2 decks)

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