CSWIP 3.1 Welding Inspector: Free Mock Test & Practice Questions

CSWIP 3.1 Welding Inspector

This certification is intended for experienced welders, inspectors, engineers, or technicians seeking to demonstrate competence in welding inspection. It qualifies individuals to act as a Certified Welding Inspector, a role crucial for quality control in fabrication.

Pass mark 70/90 120 minutes Real test fee approx £2500 TWI Certification Ltd (CSWIP) How many can I get wrong?

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Try 3 real CSWIP 3.1 Welding Inspector questions

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Q1. What is considered the primary function of a Welding Inspector?

A. To personally train and qualify all welders on a project.
B. To ensure the project is completed ahead of schedule and under budget.
C. To verify that all welding and related activities are performed in accordance with the specified requirements.
D. To select the most cost-effective welding consumables for the job.

Show answer & explanation

✓ Answer: C. To verify that all welding and related activities are performed in accordance with the specified requirements.

The core duty of a Welding Inspector is to act as a quality control checkpoint, verifying conformance to codes, standards, and project specifications.

Q2. In a fillet weld, what dimension is measured from the root of the joint to the toe of the weld?

A. Throat Thickness
B. Leg Length
C. Weld Face
D. Root Gap

Show answer & explanation

✓ Answer: B. Leg Length

The leg length is the distance from the joint root to the toe of the fillet weld, a primary measurement for determining the weld's size.

Q3. Which of the following is the most likely cause of solidification cracking, often found along the centreline of a weld?

A. Using low-hydrogen consumables on a clean joint.
B. Applying a high level of preheat to a thick section.
C. A high travel speed combined with a very deep and narrow weld bead.
D. Insufficient inter-run cleaning in a multi-pass weld.

Show answer & explanation

✓ Answer: C. A high travel speed combined with a very deep and narrow weld bead.

A high depth-to-width ratio of the weld bead promotes the segregation of low-melting-point impurities to the centreline, which then cracks under shrinkage stress.

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Practice material only. This is revision practice, not official training, assessment or certification, and not a substitute for the required course or supervised experience. Always confirm the current requirements with the official awarding body or test provider before relying on it.

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CSWIP 3.1 Welding Inspector — common questions

Frequently asked

How many questions are in the CSWIP 3.1 Welding Inspector?

The exam has 90 questions. Every Revision Robin mock uses the same 90-question format so your practice matches the real thing.

What is the pass mark for the CSWIP 3.1 Welding Inspector?

You need 70 out of 90 correct to pass, which is about 78%. Our mocks mark you against this exact threshold.

How long do you get?

The test is timed at 120 minutes. Our full mock runs on the same clock so you can practise your pacing.

Are these the real exam questions?

No. Our questions are original and written to match the current syllabus, so they give realistic practice without copying the official paper. Every answer comes with a plain-English explanation. Always confirm current rules and content with TWI Certification Ltd (CSWIP).

How much does the official test cost?

The official TWI Certification Ltd (CSWIP) fee is approx £2500. Revision Robin practice is separate and helps you pass first time so you only pay that fee once.