General Knowledge10 (Drivingtests.org)

According to the Hours of Service (HOS) regulations, the driver of a passenger-carrying vehicle who has been on duty for 15 hours may not drive _________ before going off duty.

for more than 1 hour
for more than 2 hours
for more than 3 hours
at all

Under federal regulations, which of these newly manufactured buses are required to be equipped with electronic stability control (ESC)?

Coach buses.
School buses.
Transit buses.
All of these.

Your tractor-trailer is equipped with an 18-speed manual transmission. To reach gear 7 L, the range selector should be in _____, and the splitter should be in _____.

HIGH; HIGH
LOW; LOW
LOW; HIGH
HIGH; LOW

Your employer told you to transport some cargo in a manner that you believed was unsafe. You refused, expressing your safety concerns. As a result, your employer took retaliatory action against you. What should you do?

File a complaint with FMCSA.
Call the police.
File a complaint with OSHA.
Let it go and just transport the cargo.

You are going to load and transport a cargo of perishable foodstuffs in your refrigerated (reefer) truck. You should do which of the following?

Provide for adequate air circulation in the cargo area.
Keep the load at as low a temperature as possible.
Cool down the load to the proper temperature after it has been loaded.

At a roadside inspection, your vehicle will be put out-of-service if _____ of its brakes are found to be defective.

at least 10%
at least 20%
at least 30%

Which of the following strategies can help prevent cargo theft?

Whenever you stop or park, let dispatch know.
Lock uncoupled trailers so they can't be moved.
Always be aware of your surroundings.
All of these can help.

In the wintertime, asphalt tends to look:

Black and shiny.
Grayish white.
Brownish black.

You’re driving a truck, and a passenger is seated next to you in the cab. Under federal regulations, is the passenger required to wear a seat belt?

Yes, but only if the passenger doesn't hold a CDL.
Yes.
No.

You’re driving a concrete mixer truck (cement mixer) to your next job site. In this context, what is “slump”?

The consistency of the concrete to be poured.
The levelness of the surface onto which the concrete is poured.
The amount by which your vehicle sinks under the weight of the concrete load.

You’re driving a loaded truck. How can you maintain your personal safety at truck stops?

Don't discuss your cargo with others.
Hide your valuables from view.
Lock your doors.
Do all of these.

Under federal regulations, the maximum allowed gross vehicle weight (GVW) of a truck on an interstate highway is

120,000 pounds.
100,000 pounds.
80,000 pounds.

Which of the following statements about bias-ply tires and radial tires are true?

In bias-ply tires, the plies crisscross each other diagonally.
Radial tires are more prone to flat spots than bias-ply tires.
Bias-ply tires tend to provide a smoother ride than radial tires.

Under federal regulations, on any interstate highway, the maximum allowed gross weight on the tandem axles of a 5-axle tractor-trailer is:

20,000 pounds.
34,000 pounds.
80,000 pounds.

Your electronic daily log must contain which of the following entries?

Your carrier's address.
Total miles driven.
Total hours for each duty cycle.
All of these.

According to the Hours of Service (HOS) regulations, if you encounter adverse driving conditions during your trip that prevent you from completing your trip within the allowed driving time, you may extend your allowed driving time by an additional:

1 hour.
2 hours.
3 hours.

Under federal regulations, when you’re transporting a large boulder (with a stable base) on a flatbed vehicle, you must support it with at least ____ piece(s) of hardwood blocking and secure it with at least ____ chain(s).

1;2
2;1
2;2

Rapid acceleration can increase your fuel consumption by as much as:

20%.
30%.
40%.

When is an engine retarder most efficient?

Higher rpm and higher vehicle speeds.
Lower rpm and higher vehicle speeds.
Higher rpm and lower vehicle speeds.

According to the Hours of Service (HOS) regulations, the driver of a passenger-carrying vehicle must not drive for more than _______ while on duty.

6 hours.
8 hours.
10 hours.

What is the purpose of the central apron in a roundabout?

To provide a place to stop if your vehicle breaks down.
To prevent you from overrunning the central island.
To let smaller vehicles pass your vehicle safely.

You’ll be driving a loaded 5-axle tractor-trailer equipped with sliding tandems. Currently, the weight on the drive axles is 32,000 pounds, and the weight on the trailer tandem axles is 35,000 pounds. Assume 250 pounds per tandem hole. Which way should you slide the trailer tandems to comply with federal weight limits?

3 holes backward.
3 holes forward.
6 holes backward.

Your vehicle is equipped with hydraulic brakes. At a roadside inspection, your vehicle will be put out of service if the fluid level in any master cylinder reservoir is less than:

1/8 full
1/4 full
1/2 full

To secure a metal coil weighing at least 5,000 pounds with its eye vertical on a flatbed truck, at least _____ tiedowns must be used.

1
2
3

Under federal regulations, coach buses and truck tractors manufactured since ______ are required to be equipped with electronic stability control (ESC).

2005
2015
2019

Which of the following are true about an automated manual transmission (AMT)?

There is no shifter stick.
There may be no clutch pedal.
There is no torque converter.
All of the are true.

According to the Hours of Service (HOS) regulations, the driver of a cargo-carrying vehicle may not drive more than _______ during a 14-hour on-duty period.

10 hours.
11 hours.
12 hours.

Driving on snow-covered roads can increase your fuel consumption by as much as:

20%.
30%.
40%.

You’re having some trouble backing your truck into the dock. Your helper offers to back your truck for you. You should:

Allow him or her to back the truck while you act as helper.
Politely refuse.
Ask the receiver for advice.

Which of the following will NOT help you be more fuel efficient?

Quick starts and hard stops.
Planning ahead.
Obeying the posted speed limit.
Idling the engine for less than 10 seconds.

You’ll be driving a 5-axle tractor-trailer. The distance from the steering axle to the rear tandem trailer axle is 51 feet. The distance from the front drive axle to the rear tandem trailer axle is 36 feet. Using the federal Bridge Gross Weight Formula, what is the maximum combined weight that can be carried by the drive axles and trailer axles?

46,000 pounds.
66,000 pounds.
80,000 pounds.

At a truck stop, you notice a young woman looking forlorn. What are some signs that she might be a victim of human trafficking?

She is not allowed to speak for herself.
Trucks are flashing their headlights.
She seems unaware of her whereabouts.
All of these are possible signs.

You’ll be driving a tractor-trailer with tandem drive axles and tandem trailer axles. You’re installing tire chains on the vehicle to cope with the bad winter weather. Which tires are legally required to be chained?

Both sides of one drive axle and both sides of one trailer axle.
Both sides of one drive axle only.
It depends on the state.

At a roadside inspection, your vehicle will be put out of service if a tire leak is found and:

The tire has lost 50% or more of its rated pressure.
The leak can be felt or heard.
The tire is already flat.
Any of these are true.

According to the Hours of Service (HOS) regulations, the driver of a cargo-carrying vehicle must go off duty after the driver has been on duty for:

10 consecutive hours.
14 consecutive hours.
12 consecutive hours.

You’re driving on a curve to the left. How can you ensure that your rear wheels stay in your lane?

Keep your front wheels close to the center line of the roadway.
Straddle your lane and the lane to your right.
Keep your front wheels close to the right edge of your lane.

Idling your engine for more than five minutes can:

waste fuel.
clog fuel injectors.
increase emissions.
Do all of these.

Which of these is the most serious reported problem with some GPS navigation devices?

They cost too much.
They don't mount properly on the vehicle.
They can make navigation errors.

Which of the following are signs of a suspicious package?

Protruding wires.
Strange odor.
Oily stains on the wrapper.
All of these apply.

In FMCSA’s Compliance, Safety, Accountability (CSA) program, all of the following are Behavior Analysis and Safety Improvement Categories (BASICs) EXCEPT:

driver fitness.
Hours of Service compliance.
vehicle maintenance.
on-time performance.

Polarized gladhands on a tractor:

Cannot be connected to trailers built before 1975.
Can be incorrectly connected to polarized trailer couplers.
Can be incorrectly connected to non-polarized trailer couplers.

Which of these is the biggest drawback of today’s fully automatic (NOT automated manual) transmissions?

Unproven, experimental technology.
High cost.
Difficult to operate.

What is the major purpose of Diesel Exhaust Fluid (DEF)?

To lower the temperature of the exhaust.
To help keep the exhaust system clean.
To reduce emissions of nitrogen oxides (NOx).

Your vehicle has tandem drive axles and is equipped with an inter-axle differential. You should NOT engage it if:

you're carrying a load.
the wheels are different.
a wheel is spinning.
the vehicle is stopped.

How do you perform progressive shifting to reduce fuel consumption?

When you're accelerating, upshift as soon as possible.
Upshift at a higher rpm when you shift into a higher gear.
Do both of these.

Load binders are used for what purpose?

To tighten tiedown chains.
To contain aggregate loads.
To bind bundles of cargo such as logs or poles.

Under federal regulations, to transport logs, which of the following must be true?

The logs must be transported in a crib-type log trailer.
Tiedowns must be used.
The vehicle must be equipped with a means of cradling the logs.

When performing the pre-trip inspection of a bus, what checks should you perform on the driveshaft assembly?

The U-joints are not loose or worn.
The driveshaft is not bent or cracked.
The guards are securely mounted and in good condition.
Check all of these.

According to the Hours of Service (HOS) regulations, after ____ cumulative hours of driving without a break, you must take a 30-minute break.

4
6
8

General Knowledge10 (Drivingtests.org)

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