Take Texas CDL Class B Knowledge Test 2

QUESTION 1 / 25

If federal inspectors judge your vehicle to be unsafe, they can:

Choose one answer below.

ABring you to a garage to have your vehicle fixed.✓BFormerly request that you have your vehicle's problems fixed.✓CCall a mechanic.✓DPull the vehicle out-of-service until it is fixed.✓

QUESTION 2 / 25

When testing a parking brake, the vehicle should:

Choose one answer below.

ANot be running.✓BBe placed in a low gear while the driver attempts to pull forward.✓CBe inspected by a professional mechanic.✓DBe driven while the parking brake is applied.✓

QUESTION 3 / 25

When starting the engine as part of the pre-trip inspection, the driver should:

Choose one answer below.

AListen for unusual noises.✓BRev the engine.✓CTurn up the radio.✓DTurn on the heater.✓

QUESTION 4 / 25

Anti-Lock Braking Systems (ABS):

Choose one answer below.

AReduce normal braking capacity.✓BAre equipped in addition to other braking systems and do not reduce normal braking power.✓CAre not effective on larger vehicles.✓DAre illegal in some states.✓

QUESTION 5 / 25

If your truck or trailer catches fire, you should:

Choose one answer below.

APark in a congested area near trees.✓BPull into a service station.✓CPark near other vehicles.✓DPark in an open area.✓

QUESTION 6 / 25

Sending text messages while driving:

Choose one answer below.

AMay be done if the messages are short.✓BIs encouraged.✓CIs permitted if you are asking a question of your employer.✓DIs not permitted.✓

QUESTION 7 / 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 8 / 25

During a vehicle inspection, ensure that the landing gear is:

Choose one answer below.

ARetracted.✓BFully raised.✓CMore worn on the passenger's side than on the driver's side.✓DWell lit.✓

QUESTION 9 / 25

When inspecting a power steering-equipped vehicle, you should be sure that:

Choose one answer below.

AThe fluid is at the proper level.✓BThe hoses are connected to the battery.✓CThe hoses do not contain any fluid.✓DOnly small leaks are present.✓

QUESTION 10 / 25

Friction inside a brake drum is caused when the brake shoes and linings:

Choose one answer below.

APush against each other.✓BSeparate from the axle.✓CPush against the inside of the drum.✓DCreate excess heat.✓

QUESTION 11 / 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 12 / 25

If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.

Choose one answer below.

A32 feet✓B15 feet✓C50 feet✓D10 feet✓

QUESTION 13 / 25

Why are roads especially slippery right after it begins to rain?

Choose one answer below.

AThe water mixes with oil and grease on the road.✓BRoads are naturally slippery.✓CGravel often gets washed to the middle of the lane.✓DTires are not usually designed to drive in rain.✓

QUESTION 14 / 25

How should you check your hydraulic brakes?

Choose one answer below.

APump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should not move.✓BPump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should slowly move toward the floor.✓CPump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should slowly rise.✓DPump the brakes three times, then apply firm pressure to the brake pedal for five seconds. The brake pedal should be easy to push to the floor.✓

QUESTION 15 / 25

When you need to brake, how can you warn drivers behind you?

Choose one answer below.

ATap on the brakes a couple of times.✓BStick your arm out the window.✓CSwerve within your lane.✓DChange lanes.✓

QUESTION 16 / 25

Poisonous fumes can enter the cab due to:

Choose one answer below.

AA defective exhaust system.✓BThe wrong type of fuel being used.✓CA lack of oil in the engine.✓DUnder-inflated tires.✓

QUESTION 17 / 25

Loading cargo onto a vehicle:

Choose one answer below.

AMust be done by the driver.✓BMay be done by a person other than the driver, and they become responsible for the safety of the cargo.✓CMay be done by a person other than the driver, but the driver is responsible for the safety of the cargo.✓DMust be done by a professional loader.✓

QUESTION 18 / 25

Don't spend too much time looking at a single mirror because:

Choose one answer below.

AConditions can change quickly.✓BLooking at mirrors can make you drowsy.✓CIt can result in you driving a long distance without looking at the road.✓DThe mirror may not provide an accurate view of the road.✓

QUESTION 19 / 25

What kind of force must emergency brakes use?

Choose one answer below.

AAir pressure✓BMechanical✓CHeavy✓DElectrical✓

QUESTION 20 / 25

If a vehicle has air brakes, the air compressor drive belt should be checked before each drive. The belt should be:

Choose one answer below.

ALoosely attached.✓BTight.✓CCracked.✓DFrayed.✓

QUESTION 21 / 25

If hydraulic brakes fail, a driver can reduce their speed by:

Choose one answer below.

AShifting into a higher gear.✓BShifting into a lower gear.✓CFinding a hill.✓DLetting the truck run out of gas.✓

QUESTION 22 / 25

When driving, your mirrors should:

Choose one answer below.

ANot be used, as they are distracting.✓BNot be used unless there is traffic.✓CBe checked regularly.✓DBe checked regularly, but only if it is cloudy.✓

QUESTION 23 / 25

Which of the following surfaces provides the least amount of traction?

Choose one answer below.

AIce that is dry✓BIce that is wet✓CWet pavement✓DDry pavement✓

QUESTION 24 / 25

During a static leakage test, the maximum leakage rate for a double combination vehicle is:

Choose one answer below.

A3 psi in one minute.✓B6 psi in one minute.✓C8 psi in one minute.✓D4 psi in one minute.✓

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.✓