Take New Jersey CDL Class B Knowledge Test 1

QUESTION 1 / 25

A tank endorsement is:

Choose one answer below.

AOnly required when transporting gases.✓BOnly required when transporting liquids.✓CUsed when transporting both liquids and gases.✓DOptional when transporting hazardous materials.✓

QUESTION 2 / 25

When the brake pedal is pushed down, air brakes work:

Choose one answer below.

AImmediately.✓BAfter a short delay.✓CAfter about a minute.✓DOnly if it is warm outside.✓

QUESTION 3 / 25

If required to complete a vehicle inspection report in writing, the report must be signed:

Choose one answer below.

AEvery day.✓BOnly if defects have been noted and certified to have been repaired.✓COnly if the repairs are estimated to cost more than $1,000.✓DOnly if requested to do so by a law enforcement officer.✓

QUESTION 4 / 25

If being tailgated, you should:

Choose one answer below.

ADrive in the left lane.✓BDrive in the right lane.✓CSpeed up.✓DDrive on the shoulder.✓

QUESTION 5 / 25

How much water is needed on a road surface for a vehicle to hydroplane?

Choose one answer below.

AUsually several inches✓BA good amount, such as a large puddle✓CA small amount✓DNo water✓

QUESTION 6 / 25

To best reduce the distractions of a cell phone, you should:

Choose one answer below.

AStay on a single call for an entire trip.✓BTurn the phone off before driving.✓COnly us the phone to accept incoming calls.✓DUse the phone to text rather than talk.✓

QUESTION 7 / 25

Before beginning downhill, you should:

Choose one answer below.

AShift into a higher gear.✓BTake your vehicle out of gear.✓CShift into a lower gear.✓DRely only on braking to reduce your speed.✓

QUESTION 8 / 25

When driving in heavy traffic, you should:

Choose one answer below.

AUse hands-free cellular devices.✓BUse your cell phone for texting instead of calling.✓CNot use your cell phone.✓DTurn up the ringer on your cell phone.✓

QUESTION 9 / 25

During a static leakage test, the maximum leakage rate for a single vehicle with air brakes is ____ in one minute.

Choose one answer below.

A1 psi✓B2 psi✓C3 psi✓D4 psi✓

QUESTION 10 / 25

What is a danger of rolling back when you start to accelerate?

Choose one answer below.

AThe transmission may be damaged.✓BThe truck is not made to go backwards.✓CYou may hit a vehicle behind you.✓DYou may lose your position in traffic.✓

QUESTION 11 / 25

When pulled off on the side of the road, a driver should:

Choose one answer below.

AKeep the driver’s side door open.✓BTurn on their emergency flashers.✓CWave their arms.✓DTurn off all lights.✓

QUESTION 12 / 25

When inspecting cargo, the driver should do all of the following, except:

Choose one answer below.

AEnsure that the truck is not overloaded.✓BEnsure that the cargo is balanced.✓CEnsure that the cargo is secured properly.✓DEnsure that the breakable items are placed under heavier items.✓

QUESTION 13 / 25

A modulating control valve can control the:

Choose one answer below.

ASpring brakes.✓BLanding gear.✓CAir brakes.✓DAnti-lock braking system (ABS).✓

QUESTION 14 / 25

If feeling tired and frequently yawning, you should:

Choose one answer below.

APress on and continue driving.✓BGet some coffee.✓CDrive faster.✓DPull over and take a nap.✓

QUESTION 15 / 25

After starting the engine, oil pressure should reach a normal level:

Choose one answer below.

AWithin a few seconds.✓BAfter about a minute.✓CAfter about four minutes.✓DWithin 10 minutes of driving.✓

QUESTION 16 / 25

Regarding winter driving, all of the following are true, except:

Choose one answer below.

AFront tires should have a tread depth of at least 4/32 an inch.✓BTires should be slightly deflated.✓CRear tires should have a tread depth of at least 2/32 an inch.✓DUse a gauge to verify that each tire has a safe tread depth.✓

QUESTION 17 / 25

What is a Gross Vehicle Weight Rating?

Choose one answer below.

AThe maximum weight stated by the manufacturer as the loaded weight of a single vehicle✓BThe maximum weight that can be pulled by a single vehicle✓CThe minimum weight that can be hauled by a single vehicle✓DThe maximum amount that can be loaded onto a single trailer✓

QUESTION 18 / 25

You should always be able to stop within:

Choose one answer below.

A10 feet of your vehicle.✓B1,000 feet of your vehicle.✓CYour view of the road ahead.✓D30 seconds of hitting the brakes.✓

QUESTION 19 / 25

If a truck is equipped, a trailer brake hand valve can be used to:

Choose one answer below.

AAdd fuel to the vehicle.✓BPrevent the vehicle from rolling back when being started from a stop.✓CCheck the oil level.✓DLoad cargo.✓

QUESTION 20 / 25

Vehicles with dual air brake systems:

Choose one answer below.

AHave air pressure in the braking system even when the vehicle is not running.✓BMaintain some air pressure in the braking system when the vehicle is not running.✓CMust be run to build air pressure to allow the brakes to operate properly.✓DMaintain air pressure when shut off for periods of less than four hours.✓

QUESTION 21 / 25

Air tank drains:

Choose one answer below.

AAllow rain water to enter the tanks.✓BAre used to drain water and oil from the air tanks.✓CShould never be opened.✓DMust remain open while driving.✓

QUESTION 22 / 25

During a basic vehicle control skills test, you may be asked to:

Choose one answer below.

AParallel park.✓BInspect your tires.✓CMonitor your gauges.✓DPull forward into a parking space.✓

QUESTION 23 / 25

Which of the following is not a potential effect of drinking alcohol then driving?

Choose one answer below.

AImproved reaction time✓BDriving too fast✓CDriving in the incorrect lane✓DWeaving while driving✓

QUESTION 24 / 25

During a basic vehicle control skills test, what is considered an encroachment?

Choose one answer below.

AA driver placing the vehicle in neutral and applying the parking brake.✓BThe vehicle touching an exercise boundary line.✓CA driver properly completing an exercise in the skills test.✓DAn applicant trying to bribe the examiner.✓

QUESTION 25 / 25

Which of the following can help you determine when to upshift?

Choose one answer below.

ARoad speed✓BEngine speed✓CBoth of the above✓DNone of the above✓