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Engineer Study Guide > COMMERCIAL DMV > Flashcards

COMMERCIAL DMV Flashcards

1
Q

driving endorsements

A 
tank-N
Passenger-P
hazardous materials-H
tank with haz mat-X
doubles/triples-T
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2
Q

blood alcohol .04- lose license for:

A

one year

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3
Q

tank vehicle size minimum

A

more than 119 gallons

aggregate 1000 gallons

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4
Q

serious traffic violation (speeding) above posted by:

A

15 mph

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5
Q

2 serious violations in 3 years

A

lose CDL for 60 days

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6
Q

3 serious traffic violations in 3 years

A

lose CDL 120 days

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7
Q

notify employer in _____days of convictions of traffic violations

A

30

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8
Q

license suspended, revoked, or canceled

notify employer in ___days

A

2

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9
Q

max commericial veh width

A

8.5 ft

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10
Q

max commercial veh height

A

14 ft

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11
Q

single commercial veh axle max weight

A

20,000 lbs

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12
Q

CHP weight limit over allowance

A

100 lbs. (actually 200)

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13
Q

any accident with death, injury or $750 damage

A

report to DMV

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14
Q

days to submit accident report

A

10

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15
Q

accident in employers vehicle notification

A

5 days

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16
Q

CDL tire problems

A

condition
inflation
depth-(DMV on every major groove)
cuts

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17
Q

CDL wheel problems

A

rust around lug nuts
missing clamps, spacers, studs, lugs
welding repairs
cracks, bent, cracked

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18
Q

CDL brake problems

A

cracked drum

oil or grease on brakes

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19
Q

Pre trip engine fluids to check

A

oil, coolant, steering, windshield fluid, batteries, trans, belts

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20
Q

CDL air pressure build time

A

50—–>90 psi 3 minutes

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21
Q

Who needs a CDL?

A 
Vehicle 26000 or more
towing a vehicle of 10000+
tow more than 1 vehicle
transport 10 or more passengers
any w/ haz mat required placard
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22
Q

OOS for leaf springs

A

missing or broken in any leaf
1/4 or more missing
any components missing or damaged

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23
Q

exhaust problems

A

loose, broken, missing pipes
exhaust pieces rubbing against fuel components
leaks (black soot)

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24
Q

CDL emergency equipment required

A

fire extinguisher
spare electrical fuses
3 triangles or 3 flares or 6 fuses

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25
Q

7 step pre trip method

A
  1. overview
  2. engine compartment
  3. start engine and inspect inside cab
  4. turn off engine and check lights
  5. walk around
  6. check signal lights (brake, signal, 4-ways)
  7. Start engine check hydraulics, parking brake, test service brake stopping
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26
Q

Pre trip- engine compartment

A 
oil level
coolant level
hoses
power steering fluid level
windshield washer fluid
battery level (if possible)
trans fluid level
belts for tightness (altern., water, air compressor)
leaks
wiring
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27
Q

Pre trip inside cab with engine running

A 
Oil pressure
air pressure
build from 50-90 IN 3 MINUTES
cut out 120-140
ammeter/voltmeter
coolant temp
oil temp
lights/buzzers
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28
Q

pre trip in cab #2

A 
steering wheel controls
all controls
horn
windshield wipers
all lights
gas pedals
belt
mirrors and windshield
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29
Q

Pretrip front suspension

A

spring, spring hanger, shackles, u-bolt, shocks

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30
Q

pre trip brake check

A

condition of brake/drum

hoses

31
Q

pre trip wheel check

A

missing, bent, broken studs, clamps, or lugs

hub oil

32
Q

look how far ahead when driving

A

12-15 seconds (1/4 mile at highway speed)

33
Q

triangle placement on divided highway

A

10’, 100’, 200’ rear

34
Q

triangle placement on undivided highway

A

100’ front, 10’, 100’ rear

35
Q

put out triangles within _____ min

A

10

36
Q

obstructed view triangle placement

A

10’, 100-500’ rear

37
Q

total stopping distance

A

perception+reaction+braking

38
Q

perception distance

A

time you see the hazard to when your brain recognizes it

1 3/4 seconds

39
Q

reaction distance

A

recognize to actually hitting the brakes

3/4-1 second

40
Q

driving speed reductions for weather

A

raining- 1/3

snow- 1/2

41
Q

maximum stopping distance at 20 mph

A

40 ft

42
Q

CDL overtaking slower vehicles

A

20 mph or less (slow vehicle)
must pass by going 10 mph faster in quarter mile
follow no closer than 300 ft.

43
Q

CDL space in front of you formula

A

1 second per 10 ft of vehicle length below 40 mph

add 1 second to total for over 40 mph

44
Q

triangle placard on rear of vehicle

A

no faster than 25 mph

45
Q

CDL headlight viewing distance

A

low beams- 250 ft

high beams- 350-500 ft

46
Q

head lights on hours

A

30 min after sunset-hour before sunset

47
Q

inspect tires every__ hours or every ______miles

A

2 hours

100 miles

48
Q

leaving the road CDL procedures

A

avoid braking until below 20 mph
one set of tires on the pavement
hold wheel tightly and steer sharp back on road

49
Q

controlled braking

A

braking as hard as you can without locking the wheels

50
Q

stab braking

A

brake all the way
release when the wheels lock up
wheels start rolling, apply brakes again

51
Q

2 reasons for brake failure

A

loss of hydraulic pressure

brake fade

52
Q

placard requirements

A

viewable from 4 sides

10 3/4”

53
Q

GVW (gross vehicle weight)

A

total weight including load

54
Q

GVWR (gross vehicle weight rating)

A

specified by manufacturer as the loaded weight

55
Q

passenger vehicle driver carrying more than ___people must have CDL

A

10

56
Q

forbidden haz mat on a bus

A 
poison gas
poison liquid
more than 100 pounds of solid poison
radioactive
500 lbs of allowed haz mat and no more than 100 lbs of any one class
57
Q

Full service brake application must deliver _______psi to brake chambers when brakes applied

A

90

58
Q

Cut in/ cut out pressures

A

Cut in around 100 psi

Cut out 125 psi

59
Q

2 kinds of air tank drains

A

Quarter turn/pull cable

Automatic

60
Q

Safety relief valve in first tank set to….

A

150 psi

61
Q

CDL low air pressure warning

A

55 psi

62
Q

Spring brakes engage when pressure falls to

A

20-45 psi

63
Q

CDL low pressure air test

A

pump brakes until low pressure alarm comes on

between 55-75 psi

64
Q

spring brake activation test

A

chock, pump brakes until air brake knob pops out

20-45 psi

65
Q

air pressure build rate

A

dual air systems 85-100 psi in 45 seconds

single systems 50-90 psi in 3 min.

66
Q

CDL static leak test (applied/not applied)

A

turn off engine, release brakes, time for 1 min
cannot leak 2 psi or more
3 psi applied

67
Q

CDL cut out pressure

A

must before 130 psi

68
Q

CDL cut in pressure

A

no lower than 100 psi in trucks

69
Q

parking brake test

A

set anchor locks and drive against brakes gently

70
Q

total stopping distance

A

perception distance + reaction distance + brake lag + braking distance

71
Q

reasons for brake fade

A

over use —> heat

out of adjustment

72
Q

school bus hazard light distance from train tracks

A

200 ft

73
Q

off tracking

A

rear trailer wheels follow different path than the front

74
Q

combination veh brake lines

A

service (foot brake)

emergency (air to trailer and control emergency brakes)

Engineer Study Guide (19 decks)

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