Back to Welder Info & Full CBT38 Exam Qs (76 Marks) • 12 Practice MCQsDGT Syllabus PDF Report Wrong Info

Welder — Trade Theory NCVT Mock Test

Q: What topics should I focus on for Welder Trade Theory?

Core Welder syllabus modules: Oxy-acetylene flame types & gas cutting operations; SMAW AC/DC polarity, AWS electrode specification & arc blow; MIG (GMAW) shielding gases & TIG (GTAW) tungsten types; Weld defects (porosity, undercut, slag inclusion) & NDT inspection.

Q: How do I practise the other CBT subjects for Welder?

Use the subject switcher tabs directly above the test simulator to jump between Trade Theory, Workshop Calculation & Science, Engineering Drawing, Employability Skills, or open the Full CBT Mock Test on the Welder trade page.

Trade Theory carries the highest marks weightage in every NCVT AITT Computer-Based Test—38 questions (76 marks) for Engineering trades and 50 questions (100 marks) for Non-Engineering trades. Practise verified objective questions tailored for Welder trainees (1 Year • Capital Goods & Manufacturing • Engineering).

Switch Welder Subject:Trade Theory Workshop Calculation & Science Engineering Drawing Employability Skills Combined Full CBT

NIMI / DGT CBT Simulator

Welder — Trade Theory Mock Test

Minimum 33% in CBT Professional Knowledge component • Zero Negative Marking

Questions

Max Marks

Time Limit

18m

Neg. Marking

NONE

Choose Test Mode

Shows the right answer and NIMI technical explanation immediately after each question.

Trade Info:Engineering (1 Year • Level 2.5)•Open Welder Full Page

Important Trade Theory Topics Covered

All Trades for Theory →

Oxy-acetylene flame types & gas cutting operations

SMAW AC/DC polarity, AWS electrode specification & arc blow

MIG (GMAW) shielding gases & TIG (GTAW) tungsten types

Weld defects (porosity, undercut, slag inclusion) & NDT inspection

ITI Welder trainee in auto-darkening welding helmet, heavy leather jacket, and gauntlets striking a Shielded Metal Arc Weld on a steel T-joint fillet inside an orange curtain booth beside oxygen and acetylene gas welding cylinders

Welding & Fabrication Lab

Welder SMAW Arc Welding & Oxy-Acetylene Gas Booth

Shielded Metal Arc Welding (SMAW) T-fillet bead practice alongside oxy-acetylene gas welding cylinders with flashback regulators.

Content Verification & Error Reporting

Notice an incorrect MCQ, option, or explanation in Welder Trade Theory? Send the Question ID directly on WhatsApp (+917585821444).

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Frequently Asked Questions

In the official DGT Computer-Based Test for Welder, Trade Theory accounts for 38 Multiple Choice Questions carrying 76 marks (2 marks per correct answer, no negative marking).

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