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California CDL Tanker Vehicles Endorsement Test Practice Questions - California Commercial Driver License Tanker Vehicles Endorsement Test Exam
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Question
1
of 25
QUESTION 1 / 25
Which endorsement does California use for qualifying CDL tank vehicles?
Choose one answer below.
A
N endorsement
✓
B
T endorsement
✓
C
P endorsement
✓
D
M endorsement
✓
QUESTION 2 / 25
For California tank vehicle endorsement purposes, the liquid or gas must be:
Choose one answer below.
A
Hazardous material only
✓
B
Flammable liquid only
✓
C
Liquid or gaseous material; it does not have to be HazMat
✓
D
Food product only
✓
QUESTION 3 / 25
Which capacity threshold appears in California DMV Section 8 for N endorsement tank vehicles?
Choose one answer below.
A
More than 119 gallons individually and 1,000 gallons or more aggregate
✓
B
Any container over 5 gallons
✓
C
Only one tank over 5,000 gallons
✓
D
Exactly 500 gallons total
✓
QUESTION 4 / 25
What is liquid surge?
Choose one answer below.
A
The sloshing movement of liquid in a tank
✓
B
The tank specification plate
✓
C
The legal empty weight of the tractor
✓
D
The empty space left for expansion
✓
QUESTION 5 / 25
What is outage in a cargo tank?
Choose one answer below.
A
Empty space left for liquid expansion
✓
B
A failed brake valve
✓
C
A baffle with no holes
✓
D
A loose fifth wheel
✓
QUESTION 6 / 25
What is the purpose of baffles in a liquid tank?
Choose one answer below.
A
To slow forward-and-back liquid surge
✓
B
To eliminate all side surge
✓
C
To increase legal gross weight
✓
D
To replace leak inspections
✓
QUESTION 7 / 25
What is a smooth-bore tank?
Choose one answer below.
A
A tank with no internal structures to slow liquid flow
✓
B
A tank divided by solid compartments
✓
C
A dry freight trailer
✓
D
A tank that cannot carry liquid
✓
QUESTION 8 / 25
How are bulkheads different from baffles?
Choose one answer below.
A
Bulkheads divide tanks into smaller tanks; baffles have holes
✓
B
Bulkheads are brake parts; baffles are tire parts
✓
C
Bulkheads remove the need for outage
✓
D
Bulkheads are only for buses
✓
QUESTION 9 / 25
Why are tank vehicles easier to roll over than many other CMVs?
Choose one answer below.
A
Much of the load is carried high off the road
✓
B
They have no brakes
✓
C
They cannot carry heavy loads
✓
D
They have no steering axle
✓
QUESTION 10 / 25
How should a tank vehicle take curves and ramps?
Choose one answer below.
A
Well below posted speeds when needed
✓
B
At posted speed or faster
✓
C
Only while braking hard
✓
D
With the parking brake partly applied
✓
QUESTION 11 / 25
What is the most important tank-specific item to check?
Choose one answer below.
A
Leaks
✓
B
Paint color
✓
C
Radio volume
✓
D
Seat fabric
✓
QUESTION 12 / 25
What should you do with a leaking tank vehicle?
Choose one answer below.
A
Do not carry liquids or gases in it
✓
B
Drive faster to unload
✓
C
Open all valves
✓
D
Ignore slow drips
✓
QUESTION 13 / 25
What is the rule about driving with open valves or manhole covers?
Choose one answer below.
A
Never drive with them open
✓
B
It is allowed for non-HazMat loads
✓
C
It is required in hot weather
✓
D
It controls all surge
✓
QUESTION 14 / 25
Which equipment may need tank-specific inspection?
Choose one answer below.
A
Vapor recovery, grounding/bonding cables, emergency shutoffs, and built-in extinguisher
✓
B
Cup holders
✓
C
Sleeper curtains
✓
D
Mudflap color
✓
QUESTION 15 / 25
What driving style is safest for tank vehicles?
Choose one answer below.
A
Smooth starts, stops, turns, and lane changes
✓
B
Sudden starts and stops
✓
C
Hard steering in curves
✓
D
Coasting downhill in neutral
✓
QUESTION 16 / 25
When stopping a tank vehicle, why keep steady brake pressure?
Choose one answer below.
A
To prevent surge from pushing the truck after the stop
✓
B
To make cargo lighter
✓
C
To open the vents
✓
D
To disable the tank valves
✓
QUESTION 17 / 25
How should a tank driver prepare for routine stops?
Choose one answer below.
A
Brake early and increase following distance
✓
B
Tailgate to save space
✓
C
Brake only at the last second
✓
D
Use only the horn
✓
QUESTION 18 / 25
Why is side-to-side surge dangerous in a turn?
Choose one answer below.
A
It can shift weight outward and contribute to rollover
✓
B
It improves traction
✓
C
It lowers the center of gravity
✓
D
It makes the load weightless
✓
QUESTION 19 / 25
What test does federal rule require for the tank vehicle endorsement?
Choose one answer below.
A
A knowledge test
✓
B
A motorcycle test
✓
C
A passenger evacuation test only
✓
D
No test
✓
QUESTION 20 / 25
What minimum score is required on CDL knowledge tests?
Choose one answer below.
A
80%
✓
B
50%
✓
C
100%
✓
D
No minimum
✓
QUESTION 21 / 25
A California CLP holder has an N endorsement. What tank restriction applies?
Choose one answer below.
A
The tanks must be empty
✓
B
The tanks must be full
✓
C
The tanks must carry milk
✓
D
The tanks must carry flammable liquid
✓
QUESTION 22 / 25
If a CLP tank previously contained HazMat, what must happen before operation?
Choose one answer below.
A
It must be purged
✓
B
It must be painted
✓
C
It must be overloaded
✓
D
Its covers must stay open
✓
QUESTION 23 / 25
Which factor helps determine how much liquid to load?
Choose one answer below.
A
The liquid expansion in transit
✓
B
The radio setting
✓
C
The driver’s lunch time
✓
D
The tire brand only
✓
QUESTION 24 / 25
Which legal concern affects how much liquid can be loaded?
Choose one answer below.
A
Legal weight limits
✓
B
The cab color
✓
C
The route number font
✓
D
The passenger count
✓
QUESTION 25 / 25
Why must tanks not be loaded totally full?
Choose one answer below.
A
Liquids expand as they warm
✓
B
Full tanks weigh less
✓
C
Full tanks have more outage
✓
D
California bans all liquid loads
✓
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