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NUMBERS Flashcards

(69 cards)

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1
Q

What is the acceptable pressure range for a leak test?

A

100-120 psi, with no more than 3 psi loss

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2
Q

What is the cut-in pressure for air brakes?

A

No lower than 85 psi

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3
Q

What is the low air alarm pressure setting?

A

No lower than 55 psi (set to 60 psi factory)

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4
Q

What is the cut-out pressure range for air brakes?

A

110-120 psi, no more than 130

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5
Q

At what pressure will the air brake set itself?

A

Between 20-45 psi (no less than 20 psi)

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6
Q

What is the normal operating temperature range for coolant?

A

210-230 F (above 220 F call shop immediately)

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7
Q

What should the oil pressure gauge read?

A

20-60 psi

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8
Q

What is the acceptable battery voltage range?

A

12-14 volts

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9
Q

What is the normal transmission oil temperature range?

A

100-250 F

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10
Q

What is the air pressure range in the holding tanks?

A

80-120 psi

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11
Q

At what pressure does the air pressure alarm activate?

A

60 psi ALARM

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12
Q

What is the pressure at which the spring brake application starts?

A

55 psi

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13
Q

At what pressure do brakes lock?

A

30 psi

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14
Q

What is the typical tachometer range at idle?

A

600 RPM - 2200 RPM

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15
Q

What is the normal water temperature range?

A

190-220 degrees

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16
Q

What is the minimum tire depth for front tires?

A

4/32

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17
Q

What is the minimum tire depth for rear tires?

A

2/32

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18
Q

How far ahead should a driver look when driving?

A

12-15 seconds

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19
Q

At highway speeds, how far should a driver look ahead?

A

¼ mile

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20
Q

How far behind you should you look in your mirrors?

A

200 feet

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21
Q

What is the impact factor at 20 to 40 mph?

A

4x impact

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22
Q

What is the stopping distance at 60 mph?

A

Football field

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23
Q

What is the maximum stopping distance for engines?

A

50 ft

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24
Q

How much should speeds be reduced on wet roads?

A

1/3

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25
What is the minimum distance to follow large vehicles?
No closer than 300 ft
26
What is the low beam headlight range?
250 ft
27
What is the high beam headlight range?
350-500 ft
28
What is the maximum allowable brake rod extension?
2¼"
29
What is the pump pressure for FDC sprinklers?
150 psi
30
What is the standpipe pump pressure?
150 psi
31
What is the maximum main pump pressure?
250 psi MAX
32
What is the progressive pump pressure for downhill?
100 psi
33
What is the progressive pump pressure for level ground?
115 psi
34
What is the progressive pump pressure for uphill?
140 psi
35
What residual pressure should be maintained during relay pumping?
10-20 psi or more
36
What is the pump pressure for 2.5” hose over 800 feet?
200 psi
37
What is the pump pressure for LDH over 800 feet?
40 psi
38
What is the pump pressure for 2.5” hose under 800 feet?
100 psi
39
What is the pump pressure for LDH under 800 feet?
20 psi
40
What is the RPM for drafting?
1200 RPM
41
What is the maximum time for primer operation?
No more than 45 seconds
42
When should discharge gates be opened during drafting?
When pressure reaches 25-50 psi
43
In what mode is the pump in during drafting?
RPM mode (900-1100)
44
What is the minimum strainer clearance in all directions?
24 inches
45
What is the maximum operating pressure for the PIV?
250 psi
46
What is the factory setting for the relief valve?
150 psi
47
How much does pressure increase for every 10 GPM?
1 psi
48
How much pressure is added for elevation in pump charts?
.5 psi for each foot, 5 psi for each story
49
What is the safety loop pressure?
25 psi per 100 feet + 80 psi nozzle pressure
50
What is the nozzle pressure for a 2.5" fog nozzle?
100 psi
51
What is the safety loop friction loss?
25 psi per 100 feet
52
What is the nozzle pressure for a 100' on 1 3/4" handline?
50 psi
53
What is the flow rate for a 1” tip on a 2.5" hose line?
210 GPM
54
What is the flow rate for a 1 1/8” tip on a 2.5" hose line?
265 GPM
55
What is the flow rate for a 1 1/4” tip on a 2.5” hose line?
325 GPM
56
What is the flow rate for a 1 3/8” deck gun tip?
500 GPM
57
What is the flow rate for a 1 ½” deck gun tip?
600 GPM
58
What is the flow rate for a 1 ¾” deck gun tip?
800 GPM
59
What is the flow rate for a 2” deck gun tip?
1000 GPM
60
What is the maximum slope to travel on while driving off-road?
40% (22 degrees) or 100% (45 degrees)
61
How far apart should firefighters be when climbing an aerial ladder?
10 feet apart
62
What is the minimum safe distance to operate an aerial ladder from power lines?
10 feet
63
What does two green lights on a Scott Pak indicate?
More than 75%
64
What does one green light on a Scott Pak indicate?
50-75%
65
What does a blinking orange light on a Scott Pak indicate?
25-50%
66
What does a red light on a Scott Pak indicate?
Less than 25%
67
How many lumens does a Pelican light produce?
6000 lumens
68
What is the GPM for a fog nozzle?
150
69
What is the GPM for a 7/8 " smooth bore nozzle?
165

Fire Engineer (3 decks)

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