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NCT Vehicle Inspector / VTN Tester Competence Assessment (Ireland)

Practice Questions100 questions

2026 Statistics

Key Facts: CVRT Tester Exam

80%

Passing Score

RSA/Applus+

€150

Exam Fee (approx.)

Applus+

2.5 hours

Exam Duration (approx.)

Applus+

HGV & LGV

Vehicle Types Covered

RSA

The CVRT Tester Assessment in Ireland certifies mechanics to conduct roadworthiness tests on commercial vehicles (HGV/LGV), covering inspection procedures, RSA legislation, and practical testing skills to ensure vehicle safety and compliance.

Sample CVRT Tester Practice Questions

Try these sample questions to test your CVRT Tester exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 101+ question experience with AI tutoring.

1What is the primary purpose of a Commercial Vehicle Roadworthiness Test (CVRT) in Ireland?

A.To ensure the vehicle meets specific aesthetic standards for commercial use.

B.To confirm the vehicle's compliance with road safety and environmental standards.

C.To verify the vehicle's insurance validity and ownership details.

D.To assess the driver's competency in operating a commercial vehicle.

Explanation: The primary purpose of a CVRT is to ensure that commercial vehicles operating on Irish roads meet the required road safety and environmental standards. This contributes to reducing collisions and vehicle-related emissions.

2During a roller brake test for an HGV, what action should the tester take if the service brake efficiency falls below 50%?

A.Pass the vehicle with an advisory note.

B.Record it as a minor defect and advise the operator.

C.Fail the vehicle and categorize the defect as Major.

D.Fail the vehicle and categorize the defect as Dangerous.

Explanation: According to the CVRT Tester Manual, if the service brake efficiency for an HGV falls below the required 50% (of design gross vehicle weight), it constitutes a Major defect. This means the vehicle has failed the test and requires repair before it can be retested.

3When performing a headlamp alignment test on an LGV, what is the maximum permissible upward deviation for a dipped beam headlamp?

A.0%

B.1%

C.2%

D.3%

Explanation: For dipped beam headlamps, any upward deviation is considered a defect. The beam must always be directed downwards or horizontally, never upwards, to prevent dazzling oncoming traffic. Therefore, the maximum permissible upward deviation is 0%.

4Which of the following conditions would result in a 'Dangerous' defect classification for an HGV's steering system during a CVRT?

A.Slight play in a steering linkage ball joint.

B.Minor oil leak from the power steering pump.

C.A fractured steering arm or severely corroded steering box mounting.

D.Steering wheel free play exceeding the manufacturer's specification by 10%.

Explanation: A fractured steering arm or severely corroded steering box mounting indicates an immediate and direct risk to road safety. Such structural integrity issues in the steering system are classified as 'Dangerous' because they could lead to sudden loss of control.

5What is the minimum required tread depth for an HGV tyre across 75% of its width and around its entire circumference?

A.0.5 mm

B.1.0 mm

C.1.6 mm

D.2.0 mm

Explanation: For HGVs, the minimum legal tread depth for tyres is 1.0 mm across 75% of the tyre's width and around its entire circumference. This ensures adequate grip and prevents skidding, especially in wet conditions.

6Which of the following is a key calibration requirement for a roller brake tester used in CVRT facilities?

A.Annual calibration by a manufacturer-approved technician.

B.Daily calibration using a certified test weight.

C.Calibration only when a discrepancy is suspected.

D.Self-calibration feature initiated by the tester before each use.

Explanation: Roller brake testers must undergo annual calibration by a technician approved by the manufacturer or an accredited body. This ensures the accuracy of measurements and compliance with RSA requirements.

7An HGV with a design gross vehicle weight (DGVW) of 20,000 kg has a service brake efficiency measured at 48% during a CVRT. What is the correct defect classification and required action?

A.Minor defect, advise operator to monitor.

B.Major defect, vehicle fails, requires repair and retest.

C.Dangerous defect, vehicle fails, immediate prohibition from use.

D.Pass with advisory, as it's only slightly below the threshold.

Explanation: The minimum service brake efficiency for an HGV is 50% of DGVW. A reading of 48% is below this threshold, classifying it as a Major defect. The vehicle fails the test and must be repaired and retested before it can be deemed roadworthy.

8What is the maximum allowed free play at the circumference of the steering wheel for an HGV with a diameter of 500mm?

A.10mm

B.25mm

C.50mm

D.75mm

Explanation: For HGVs, the maximum allowed free play at the circumference of the steering wheel is 75mm. This standard ensures that the steering system is responsive and safe to operate.

9During a CVRT, if a commercial vehicle's exhaust system emits visible dense black smoke under normal operating conditions, what is the likely defect classification?

A.Minor defect

B.Major defect

C.Dangerous defect

D.No defect, if the engine is warm

Explanation: Visible dense black smoke indicates a significant issue with the engine's combustion or emission control system. This is a Major defect as it represents a failure to meet environmental standards and can indicate underlying mechanical problems affecting roadworthiness.

10Which component is NOT typically checked for security, condition, and leaks during the visual inspection of an HGV's suspension system?

A.Springs and torsion bars

B.Shock absorbers

C.Axle U-bolts

D.Brake fluid reservoir

Explanation: The brake fluid reservoir is part of the braking system, not the suspension system. While it is checked during the CVRT, it falls under the braking inspection category.

About the CVRT Tester Exam

The Commercial Vehicle Roadworthiness Tester Assessment (Ireland) is designed to certify individuals as qualified CVRT inspectors. This rigorous examination evaluates a candidate's theoretical knowledge of Heavy and Light Goods Vehicle (HGV/LGV) standards, practical inspection skills, and adherence to Road Safety Authority (RSA) legislation. Successful completion is mandatory for anyone wishing to conduct roadworthiness tests on commercial vehicles in Ireland, ensuring public safety and regulatory compliance.

Assessment

Performance-based assessment

Time Limit

Approx. 2 hours 30 minutes (90 minutes for MCQ, 60 minutes for practical assessment).

Passing Score

80%

Exam Fee

€150 (Road Safety Authority (RSA) / Applus+)

CVRT Tester Exam Content Outline

40%

HGV and LGV Inspection Procedures

This section covers the detailed methodologies for inspecting various components of heavy and light goods vehicles. It includes the assessment of braking systems, steering and suspension, chassis integrity, lighting and signaling, electrical systems, and exhaust emissions to ensure compliance with roadworthiness standards.

25%

CVRT Tester Manual and Defect Categorization

Candidates must demonstrate a thorough understanding of the official CVRT Tester Manual. This involves correctly interpreting inspection instructions, identifying common defects, and accurately categorizing them based on their severity (minor, major, or dangerous) as defined by RSA guidelines.

20%

Test Equipment Operation and Calibration

Proficiency in the use and calibration of specialized CVRT test equipment is crucial. This includes practical application of roller brake testers, headlamp alignment equipment, play detectors for steering and suspension, and smoke meters for emissions testing, ensuring accurate and reliable results.

15%

Road Safety Authority (RSA) Legislation and Licensing

This module focuses on the legal framework governing commercial vehicle roadworthiness in Ireland. Candidates will be assessed on their knowledge of relevant Road Safety Authority (RSA) legislation, European Union directives, and specific licensing rules pertinent to both commercial vehicles and certified testers.

How to Pass the CVRT Tester Exam

What You Need to Know

Passing score: 80%
Assessment: Performance-based assessment
Time limit: Approx. 2 hours 30 minutes (90 minutes for MCQ, 60 minutes for practical assessment).
Exam fee: €150

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CVRT Tester Study Tips from Top Performers

1Thoroughly study the official CVRT Tester Manual, paying close attention to defect categorization.

2Gain practical experience with all types of CVRT test equipment and understand their calibration procedures.

3Attend an RSA-approved CVRT Tester training course, as it provides crucial hands-on experience and theoretical knowledge.

4Focus on understanding the underlying principles of commercial vehicle mechanics, not just memorizing facts.

5Practice with multiple-choice questions and conduct mock practical assessments to simulate exam conditions.

Frequently Asked Questions

What is the CVRT Tester Assessment?

The CVRT Tester Assessment is a mandatory examination in Ireland for individuals who wish to become certified inspectors of Commercial Vehicle Roadworthiness Tests (CVRT) for Heavy and Light Goods Vehicles (HGV/LGV).

Who administers the CVRT Tester Assessment?

The assessment is administered by Applus+ on behalf of the Road Safety Authority (RSA) in Ireland.

What is the passing score for the CVRT Tester Assessment?

Candidates must achieve a minimum score of 80% to pass the CVRT Tester Assessment.

How much does the CVRT Tester Assessment cost?

The assessment fee is approximately €150. This does not include any mandatory training course costs.

What are the prerequisites for taking the assessment?

Prerequisites include being a qualified mechanic or equivalent, holding a valid driving license for relevant vehicle categories, and completing an RSA-approved CVRT Tester training course.