300+ Free Washington CDL Tanker Endorsement Test Practice Questions
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Key Facts: Washington CDL Tanker Endorsement Test Exam
20
WA Tank Vehicle Questions
Washington DOL
16/20
Passing Score
Washington DOL / 49 CFR 383.135
$35
CDL Knowledge Test Fee
Washington DOL
180 days
Knowledge Score Validity
Washington DOL
Washington tanker applicants take a 20-question DOL Tank Vehicle knowledge test and need 16 correct to pass. Study Washington Commercial Driver Guide Section 8 and related CDL safety sections, with emphasis on liquid surge, outage, baffles, bulkheads, smooth-bore tanks, high center of gravity, rollover prevention, braking, curves, inspections, loading and unloading, emergency equipment, and 49 CFR Part 383 tank endorsement standards.
Sample Washington CDL Tanker Endorsement Test Practice Questions
Try these sample questions to test your Washington CDL Tanker Endorsement Test exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 300+ question experience with AI tutoring.
1Which statement is correct about washington dol lists the tank vehicle cdl knowledge test as 20 questions?
2Which statement is correct about washington dol lists 16 correct out of 20 as the tank vehicle passing score?
3Which statement is correct about 49 cfr 383.135 requires at least 80 percent correct on cdl knowledge tests?
4Which statement is correct about n is the cdl tank vehicle endorsement?
5Which statement is correct about drivers should inspect before loading, unloading, or driving a tanker?
6Which statement is correct about leaks are the most important tank-vehicle inspection item?
7Which statement is correct about intake, discharge, and cut-off valves must be checked for correct position?
8Which statement is correct about manhole covers should have gaskets and close correctly?
9Which statement is correct about liquid surge is movement of liquid in a partially filled tank?
10Which statement is correct about surge is especially important when the tank is partially filled?
About the Washington CDL Tanker Endorsement Test Exam
The Washington CDL Tanker Vehicles Endorsement Test is the written knowledge test for drivers seeking N endorsement authority to operate qualifying tank vehicles. Study centers on tank vehicle inspection, leaks, valves, manhole covers, vents, special equipment, liquid surge, high center of gravity, smooth braking, curves and ramps, outage or ullage, loading and unloading, baffled and unbaffled tanks, smooth-bore tanks, bulkheads and compartments, skids, emergency systems, and the Washington/Federal CDL endorsement context. Hazardous materials in tanks require separate H or X authority, including TSA and ELDT HazMat requirements where applicable.
Assessment
Washington DOL Tank Vehicle CDL knowledge test with 20 multiple-choice questions; DOL lists 16 correct answers required and no separate skills test for the endorsement unless the applicant is training or taking a skills test in a commercial tank vehicle before CLP issuance.
Time Limit
No separate official Washington Tank Vehicle-only time limit published by DOL
Passing Score
16 of 20 correct (80%)
Exam Fee
$35 Washington CDL knowledge test; separate endorsement, CLP, license, training, HazMat, or skills-test costs may apply depending on the applicant's full CDL transaction (Washington State Department of Licensing under FMCSA CDL tank vehicle endorsement standards)
Washington CDL Tanker Endorsement Test Exam Content Outline
Liquid Surge and Tank Construction
Forward surge, side surge, partial loads, baffled tanks, unbaffled and smooth-bore tanks, bulkheads, compartments, and liquid movement.
Rollover Prevention, Braking, and Curves
High center of gravity, ramps, curves, downgrades, following distance, smooth braking, emergency stops, wet roads, crosswinds, skids, and jackknife risk.
Outage, Loading, and Unloading
Ullage, expansion space, dense liquids, tank capacity, axle and legal weight limits, product verification, hoses, valves, pressure, bonding, grounding, and post-transfer checks.
Tank Inspection and Emergency Response
Leaks, tank shell damage, intake and discharge valves, piping, vents, manhole covers, vapor recovery, emergency shut-offs, fire extinguishers, spill response, and special equipment.
Washington and Federal CDL Context
N endorsement purpose, X endorsement when HazMat and tanker authority combine, Washington DOL testing logistics, fees, score validity, CLP context, and 49 CFR Part 383 standards.
How to Pass the Washington CDL Tanker Endorsement Test Exam
What You Need to Know
- Passing score: 16 of 20 correct (80%)
- Assessment: Washington DOL Tank Vehicle CDL knowledge test with 20 multiple-choice questions; DOL lists 16 correct answers required and no separate skills test for the endorsement unless the applicant is training or taking a skills test in a commercial tank vehicle before CLP issuance.
- Time limit: No separate official Washington Tank Vehicle-only time limit published by DOL
- Exam fee: $35 Washington CDL knowledge test; separate endorsement, CLP, license, training, HazMat, or skills-test costs may apply depending on the applicant's full CDL transaction
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
Washington CDL Tanker Endorsement Test Study Tips from Top Performers
Frequently Asked Questions
How many questions are on the Washington CDL Tank Vehicle knowledge test?
Washington DOL lists the Tank Vehicle CDL knowledge test as 20 questions. You need 16 correct answers to pass.
What score do I need to pass the Washington tanker endorsement test?
You need 16 correct answers out of 20, which is 80%. That matches the federal CDL knowledge-test passing standard in 49 CFR 383.135.
Does the Washington Tank Vehicle endorsement require a skills test?
Washington DOL lists no separate skills test for Tank Vehicle. DOL notes an exception when you are taking your skills test or training in a commercial tank vehicle; in that case, you must pass the knowledge test before DOL can issue your CLP.
How much does the Washington CDL tanker knowledge test cost?
Washington DOL lists the CDL knowledge test fee as $35. Separate CLP, endorsement, license, skills-test, training, medical, or HazMat-related costs may apply depending on your full CDL transaction.
What topics are most important for the Washington tanker test?
Study liquid surge, outage or ullage, baffles, bulkheads, smooth-bore tanks, high center of gravity, rollover risk, braking, curves, tank inspection, valves, vents, manhole covers, loading, unloading, and emergency equipment.
Does a tanker endorsement cover hazardous materials?
No. The N endorsement covers tank vehicles. If the tank cargo is hazardous material requiring HazMat authority, you need H or the combined X endorsement and must satisfy TSA and ELDT HazMat requirements where applicable.
How long is a passed Washington CDL knowledge test score valid?
Washington DOL says CDL knowledge test scores are valid for 180 days from the date passed, with CLP renewal rules published by DOL.