CDL Pre-trip Inspection Quiz

24 Questions | By Susie04 | Last updated: Jul 31, 2022 | Total Attempts: 13997

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Can you pass this "CDL Pre-Trip Inspection Quiz" with a good score? For you to become or keep being a commercial driver, there is a couple of tests that you must take to ensure that you are well capable of carrying out your job with minimal accidents. Are you getting ready for the CDL pre-trip inspection? The quiz below is perfect for helping you know what to expect. Give it a try! Best of luck to you!

Questions and Answers

1.

WHAT STRUCTURE (THAT SUPPORTS THE FIFTH WHEEL SKID PLATE) SHOULD BE CHECKED FOR CRACKS OR BREAKS?
- A.
  
  APRON
- B.
  
  KINGPIN
- C.
  
  SLIDING PINTLE
- D.
  
  PLATFORM
2.

WHAT IS BEING INSPECTED WHEN YOU PUMP THE PEDAL THREE TIMES AND HOLD IT DOWN FOR FIVE SECONDS, MAKING SURE THAT THE PEDAL SHOULD NOT MOVE DURING THE FIVE SECONDS?
- A.
  
  HYDRAULIC BRAKE
- B.
  
  AIR BRAKE
- C.
  
  PARKING BRAKE
- D.
  
  ALL OF THE ABOVE
3.

WHAT TRANSMITS POWER FROM THE TRANSMISSION TO THE DRIVE AXLE?
- A.
  
  STEERING PLAY
- B.
  
  POWER STEERING BELT
- C.
  
  AIR COMPRESSOR BELT
- D.
  
  DRIVESHAFT
4.

WHAT CARRIES AIR OR HYDRAULIC FLUID TO THE WHEEL BRAKE ASSEMBLY?
- A.
  
  BRAKE HOSES/LINE
- B.
  
  BRAKE LININGS
- C.
  
  SLACK ADJUSTERS
- D.
  
  BRAKE CHAMBERS
5.

WHAT IS THE SLIDING MECHANISM AND LOCKING DEVICE FOR TANDEM AXLES ON TRAILERS?
- A.
  
  TANDEM RELEASE (ARM/LOCKING PIN).
- B.
  
  SUSPENSION SYSTEM
- C.
  
  FRAME
- D.
  
  LANDING GEAR
6.

WHAT DO YOU INSPECT TO MAKE SURE ALL ARE PRESENT, FREE OF CRACKS AND DISTORTIONS, AND SHOW NO SIGNS OF LOOSENESS SUCH AS RUST TRAILS OR SHINY THREADS?
- A.
  
  LUG NUTS
- B.
  
  SPACERS
- C.
  
  RIMS
- D.
  
  NONE OF THE ABOVE
7.

WHAT SHOULD YOU MAKE SURE IS SECURED, CAP(S) ARE ON TIGHT, AND HAS NO LEAKS FROM THE TANK(S) OR LINES?
- A.
  
  FUEL TANK
- B.
  
  BATTERY/BOX
- C.
  
  AIR COMPRESSOR
- D.
  
  WATER PUMP
8.

WHAT SHOULD YOU CHECK SO THAT IT IS SOLID, CLEAR OF OBJECTS, AND SECURELY BOLTED TO THE TRACTOR FRAME?
- A.
  
  PLATFORM
- B.
  
  KINGPIN
- C.
  
  CATWALK
- D.
  
  APRON
9.

WHAT MAINTAINS AIR PRESSURE IN THE AIR BRAKE SYSTEM?
- A.
  
  AIR COMPRESSOR/BELT
- B.
  
  ALTERNATOR/BELT
- C.
  
  POWER STEERING/BELT
- D.
  
  WATER PUMP/BELT
10.

THERE SHOULD BE A MINIMUM TREAD DEPTH OF 4/32 OF AN INCH FOR THE:
- A.
  
  STEERING AXLE TIRES
- B.
  
  SPARE TIRES
- C.
  
  NON-DRIVE AXLE TIRES
- D.
  
  ALL OF THE ABOVE
11.

WHICH OF THE FOLLOWING DISENGAGES THE ENGINE FROM THE DRIVE TRAIN SO THE VEHICLE WON'T MOVE AND REDUCES THE LOAD ON STARTING THE MOTOR?
- A.
  
  PARKING BRAKE
- B.
  
  DRIVESHAFT
- C.
  
  CLUTCH/GEARSHIFT
- D.
  
  WATER PUMP
12.

WHAT IS THE CONTAINER (HOSES) FOR THE MECHANISM THAT TRANSFORMS STEERING COLUMN ACTION INTO WHEELS ACTION?
- A.
  
  STEERING LINKAGE
- B.
  
  STEERING PLAY
- C.
  
  STEERING BOX/HOSES
- D.
  
  SUSPENSION
13.

WHAT ARE YOU INSPECTING BY MAKING SURE THAT HOSES AND LINES ARE NOT CUT, CHAFED, SPLICED, WORN, AND NOT TANGLED, PINCHED, OR DRAGGED AGAINST TRACTOR PARTS?
- A.
  
  AIR/ELECTRIC LINES
- B.
  
  LOCKING JAWS
- C.
  
  DOORS/TIES/LIFTS
- D.
  
  SPLASH GUARDS
14.

IF LOOKING FOR PUDDLES ON THE GROUND, DRIPPING FLUIDS ON THE UNDERSIDE OF THE ENGINE AND TRANSMISSION, YOU WOULD BE LOOKING FOR:
- A.
  
  LEAKS
- B.
  
  POWER STEERING FLUID
- C.
  
  OIL LEVEL
- D.
  
  NONE OF THE ABOVE
15.

WHAT SHOULD BE FULLY ENGAGED, WITH NO LOOSE OR MISSING PINS IN THE SLIDE MECHANISM OF THE SLIDING FIFTH WHEEL?
- A.
  
  SLIDING PINTLE
- B.
  
  GAP
- C.
  
  LOCKING JAWS
- D.
  
  LOCKING PINS
16.

TO IMPROVE VISIBILITY DURING INCLEMENT WEATHER, WHAT MUST BE SECURE, NOT DAMAGED, AND OPERATING SMOOTHLY AND CORRECTLY?
- A.
  
  LIGHTING INDICATORS
- B.
  
  HEATER/DEFROSTER
- C.
  
  WIPERS/WASHERS
- D.
  
  EMERGENCY EQUIPMENT
17.

TO CHECK THE COOLANT LEVEL:
- A.
  
  YOU WOULD INSPECT THE RESERVOIR SIGHT GLASS
- B.
  
  REMOVE THE RADIATOR CAP AND CHECK THE LEVEL OF VISIBLE
- C.
  
  CHECK THE DIPSTICK
- D.
  
  EITHER A OR B
18.

WHAT SHOULD BE CLEAN WITH NO ILLEGAL STICKERS, OBSTRUCTIONS, OR DAMAGES TO THE GLASS?
- A.
  
  LIGHTING INDICATORS
- B.
  
  WINDSHIELD
- C.
  
  HEADLIGHTS
- D.
  
  MIRRORS
19.

WHAT IS THE BRACKETS, BOLT, OR BUSHINGS THAT ARE USED TO ATTACH SPRING AND/OR AIRBAG TO THE AXLE AND VEHICLE FRAME?
- A.
  
  SHOCK ABSORBERS
- B.
  
  SPRING MOUNTS
- C.
  
  MOUNTING BOLTS
- D.
  
  TORQUE
20.

IF THE WHEEL HAS A SIGHT GLASS, CHECK THAT THE OIL LEVEL IS ADEQUATE OTHERWISE, LOOK FOR LEAKS AROUND THE:
- A.
  
  HYDRAULIC BRAKES
- B.
  
  HUB OIL/AXLE SEALS
- C.
  
  RIMS
- D.
  
  BATTERY
21.

WHAT RELEASES THE FIFTH WHEEL LOCKING JAWS SO THE TRAILER CAN BE COUPLED? (YOU SHOULD MAKE SURE IT IS IN THE ENGAGE POSITION AND THE SAFETY LATCH IS IN PLACE).
- A.
  
  RELEASE ARM
- B.
  
  DRAWBAR
- C.
  
  APRON
- D.
  
  LOCKING PINS
22.

IF WORN, WHAT CAN CAUSE EXCESSIVE HEAT BUILDUP FROM THE REDUCED ABILITY TO ABSORB AND DISSIPATE HEAT, POSSIBLE LEADING TO LOSS OF BRAKE RESPONSE?
- A.
  
  BRAKE DRUM/LININGS
- B.
  
  BRAKE CHAMBERS
- C.
  
  BRAKE HOSES/LINES
- D.
  
  ALL OF THE ABOVE
23.

WHAT GAUGE INDICATES THE ALTERNATOR AND/OR GENERATOR IS CHANGING?
- A.
  
  AMMETER/VOLTMETER
- B.
  
  TEMPERATURE
- C.
  
  OIL PRESSURE
- D.
  
  ALL OF THE ABOVE
24.

WHAT SHOULD NOT BE BENT, DAMAGED, OR RUSTED THROUGH AND SHOULD BE EVENLY CENTERED WITH THE DUAL WHEELS AND TIRES EVENLY SEPARATED?
- A.
  
  SPACERS
- B.
  
  LUG NUTS
- C.
  
  RIMS
- D.
  
  ALL OF THE ABOVE