Kentucky CDL — General Knowledge: Traffic Laws Practice Test

Question 1

A non-excepted interstate driver must give the state licensing agency a current:

Accepted Answer

medical examiner's certificate — Non-excepted interstate drivers are required to provide their state agency with a current medical examiner's certificate, or DOT card.

Answer

vehicle registration

Answer

proof of union membership

Answer

quarterly fuel-tax report

Question 2

How often must a commercial driver wear the safety belt?

Accepted Answer

At all times while operating the vehicle — You must be properly restrained by a safety belt at all times while operating a CMV; it helps you keep control and avoid ejection.

Answer

Only on the highway

Answer

Only when carrying passengers

Answer

Only during the road test

Question 3

In Kentucky, a driver renewing a CDL that carries a hazardous materials endorsement must:

Accepted Answer

retest for the hazardous materials endorsement — Applicants are required to retest for the hazardous materials endorsement when they renew the CDL.

Answer

surrender the endorsement permanently

Answer

pay only a doubled license fee

Answer

complete a road test in a tanker

Question 4

After the first 50 miles of a trip, how often must a driver re-check the securement of the cargo?

Accepted Answer

Every 150 miles or every 3 hours, whichever is first — Cargo securement must be inspected within the first 50 miles and then every 150 miles or every three hours, whichever comes first, plus after every break.

Answer

Every 500 miles

Answer

Only once, at the destination

Answer

Every 25 miles

Question 5

If your driver's license is suspended, revoked, or canceled, you must notify your employer within:

Accepted Answer

two business days — You must tell your employer within two business days if your license is suspended, revoked, canceled, or you are disqualified from driving.

Answer

thirty days

Answer

one week

Answer

ninety days

Question 6

A single vehicle designed to carry 16 or more people, including the driver, requires a CDL because of its:

Accepted Answer

passenger-carrying design capacity — A vehicle designed to transport 16 or more passengers, counting the driver, falls under the CDL requirements.

Answer

diesel engine

Answer

length beyond 40 feet

Answer

air-ride suspension

Question 7

Under the rules, an employer may NOT let you drive a commercial motor vehicle if:

Accepted Answer

your CDL is suspended or you hold more than one license — Your employer may not allow you to drive a CMV if you hold more than one license or if your CDL is suspended or revoked.

Answer

you have driven for less than a year

Answer

you are older than 60

Answer

you decline overtime work

Question 8

After a conviction for a traffic violation other than parking, within how many days must you tell your employer?

Accepted Answer

30 days — You must notify your employer within 30 days of a conviction for any traffic violation except parking, no matter what vehicle you were driving.

Answer

3 days

Answer

60 days

Answer

90 days

Question 9

While operating a commercial motor vehicle, sending or reading text messages is:

Accepted Answer

prohibited by federal regulation — Federal regulations prohibit texting by CMV drivers; violations can lead to disqualification and civil penalties.

Answer

allowed while stopped at a light

Answer

allowed with a hands-free mount

Answer

permitted below 25 mph

Question 10

Under the CDL rules, how many driver's licenses may you legally hold at one time?

Accepted Answer

Only one — You cannot hold more than one license; breaking this rule can bring a fine of up to $5,000 or jail.

Answer

One for every state where you work

Answer

Two, as long as one is commercial

Answer

As many as you can qualify for

Question 11

What happens to a driver's CDL after a first violation of an out-of-service order?

Accepted Answer

Loss of the CDL for at least 90 days — A first out-of-service order violation costs you your CDL for at least 90 days.

Answer

A written warning only

Answer

Loss of the CDL for 24 hours

Answer

A permanent lifetime ban

Question 12

If you are convicted of a traffic violation (other than parking) in another state, you must notify your home licensing agency within:

Accepted Answer

30 days — You must tell your motor vehicle licensing agency within 30 days of a conviction in any other jurisdiction, whatever vehicle you drove.

Answer

7 days

Answer

2 days

Answer

6 months

Kentucky CDL — General Knowledge: Traffic Laws practice test

Study questions with answers

1. A non-excepted interstate driver must give the state licensing agency a current:

2. How often must a commercial driver wear the safety belt?

3. In Kentucky, a driver renewing a CDL that carries a hazardous materials endorsement must:

4. After the first 50 miles of a trip, how often must a driver re-check the securement of the cargo?

5. If your driver's license is suspended, revoked, or canceled, you must notify your employer within:

6. A single vehicle designed to carry 16 or more people, including the driver, requires a CDL because of its:

7. Under the rules, an employer may NOT let you drive a commercial motor vehicle if:

8. After a conviction for a traffic violation other than parking, within how many days must you tell your employer?

9. While operating a commercial motor vehicle, sending or reading text messages is:

10. Under the CDL rules, how many driver's licenses may you legally hold at one time?

11. What happens to a driver's CDL after a first violation of an out-of-service order?

12. If you are convicted of a traffic violation (other than parking) in another state, you must notify your home licensing agency within:

More CDL — General Knowledge topics

Practice Traffic Laws in another state