Take Texas CDL Class A Knowledge Test 1

QUESTION 1 / 25

A stopped bus:

Choose one answer below.

AIs not a cause for concern.✓BIs not a concern if passengers are not unloading.✓CShould not be on the roadway.✓DIs a concern, whether passengers are visible or not.✓

QUESTION 2 / 25

To make it as safe as possible to leave a stop, you should park:

Choose one answer below.

ASo that you must back up to leave your parking space.✓BSo that you can pull forward to leave your parking space.✓COn the side of a roadway, not in a parking lot.✓DBy backing into a parking space.✓

QUESTION 3 / 25

An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.

Choose one answer below.

A100 feet✓B250 feet✓C300 feet✓D450 feet✓

QUESTION 4 / 25

Foundation brakes are used:

Choose one answer below.

AOnly at the front wheels.✓BOnly at the rear wheels.✓COnly at the driver’s side wheels.✓DAt each wheel.✓

QUESTION 5 / 25

During a pre-trip inspection, what is the best method for checking your lights?

Choose one answer below.

AParking near a mirror to look for a reflection✓BActivating the lights, then exiting the vehicle to check✓CLooking on the instrument panel to see if any warning lights are illuminated✓DDriving in traffic and waiting for other drivers to let you know your lights are out✓

QUESTION 6 / 25

When inspecting the exhaust system for defects, which of the following should be fixed?

Choose one answer below.

AMissing mounting brackets or clamps✓BA broken exhaust pipe, muffler, or tailpipe✓CLeaking exhaust system parts✓DAll of the above✓

QUESTION 7 / 25

Where is the safety relief valve usually located?

Choose one answer below.

ANear the rear brake✓BNear the front brake✓CIn an air tank✓DOn the dashboard✓

QUESTION 8 / 25

A vehicle should be equipped with all of the following, except:

Choose one answer below.

AA fire extinguisher.✓BSpare electrical fuses.✓CWarning devices for parked vehicles, such as flares.✓DA spotlight.✓

QUESTION 9 / 25

A driver should always:

Choose one answer below.

AStay in the right lane.✓BHave an emergency plan.✓CStay in the left lane.✓DDrive above the speed limit.✓

QUESTION 10 / 25

What can happen if a parking brake is used in very wet weather when temperatures are below freezing?

Choose one answer below.

AThe brakes will squeak.✓BThe brakes may freeze so the vehicle cannot move.✓CThe brakes may suddenly release by themselves.✓DThe brakes may explode.✓

QUESTION 11 / 25

Which type of brakes do most heavy-duty vehicles have?

Choose one answer below.

AAir brakes✓BSolid brakes✓CLiquid brakes✓DGravity brakes✓

QUESTION 12 / 25

To help your vehicle be seen by others:

Choose one answer below.

AHeadlights should be clean.✓BHeadlights should be turned off during the day.✓CHeadlights should be covered with grease.✓DHeadlights should only be used in the rain.✓

QUESTION 13 / 25

The service brake system:

Choose one answer below.

AApplies and releases the brakes when you press the brake pedal while driving normally.✓BApplies and releases the parking brakes.✓CApplies and releases the emergency brake.✓DApplies and releases the axle brake.✓

QUESTION 14 / 25

When driving down a steep grade, your brakes may fade. What happens if brakes fade?

Choose one answer below.

AThey become quieter.✓BThey become less effective.✓CThey work better than usual.✓DThey work differently from front to back.✓

QUESTION 15 / 25

When inspecting the exhaust system, which of the following should not cause concern?

Choose one answer below.

ALoose or broken exhaust pipes✓BLoose or broken mounting brackets✓CLeaking exhaust system parts✓DExhaust system parts that are not rubbing against fuel system parts✓

QUESTION 16 / 25

You will lose your CDL for at least ____ for a first railroad-highway grade crossing violation.

Choose one answer below.

A15 days✓B30 days✓C60 days✓D180 days✓

QUESTION 17 / 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 18 / 25

When starting the vehicle during the pre-trip inspection, the coolant temperature should:

Choose one answer below.

ADecrease.✓BRise slowly.✓CHold steady.✓DJump quickly.✓

QUESTION 19 / 25

If you are being tailgated, you should:

Choose one answer below.

ADrive on the shoulder.✓BPull off the roadway.✓CDrive faster.✓DAllow the vehicle to pass.✓

QUESTION 20 / 25

To correct a drive-wheel braking skid, a driver should do all of the following, except:

Choose one answer below.

ARemove your foot from the brake pedal.✓BTurn quickly in the direction of the skid.✓CCountersteer after the vehicle is back on course.✓DAccelerate.✓

QUESTION 21 / 25

When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:

Choose one answer below.

AStop harder than you would in a vehicle not equipped with ABS.✓BUse extra braking force to ensure the ABS kicks in.✓CBrake as you would in a vehicle not equipped with ABS.✓DBrake with less force than you would in a vehicle not equipped with ABS.✓

QUESTION 22 / 25

Brakes may get out of adjustment:

Choose one answer below.

AIf they are too hot.✓BIn colder weather.✓CIf they are used.✓DIf they get wet.✓

QUESTION 23 / 25

Which of the following is not an indication of damaged brakes?

Choose one answer below.

ACracked drums✓BShoes with oil or grease on them✓CShoes worn thinly✓DPads free of oil or grease✓

QUESTION 24 / 25

During the basic vehicle control skills test:

Choose one answer below.

AA pull-up always counts against the applicant.✓BA pull-up should be completed at least once.✓CStopping without changing direction is not considered a pull-up.✓DExcessive pull-ups are acceptable in the opinions of some test administrators.✓

QUESTION 25 / 25

Improperly loaded cargo can:

Choose one answer below.

ALook bad to others on the road.✓BInjure the driver during a quick stop.✓CMake it easier to stop.✓DAid in safety.✓