Exam Practice Questions And Correct

Ohio Welding Inspector Certification Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2025|2026 Q&A | Instant Download Pdf

• What is the primary purpose of a welding inspector?

a) To perform welds

b) To design welded structures

c) To verify weld quality and compliance

d) To supervise the welding crew

c) To verify weld quality and compliance

Ensuring welds meet codes and specifications is the inspector’s main duty.

• Which welding process uses a consumable electrode and shielding

gas?

a) SMAW 1 / 3

b) SAW

c) GMAW

d) GTAW

GMAW uses a consumable wire electrode and shielding gas for protection.

• What is porosity in a weld metal?

a) Excess penetration

b) Gas pockets trapped in metal

c) Excess reinforcement

d) Base metal cracking

Porosity is gas voids that weaken the weld.

4. SMAW stands for:

a) Submerged Metal Arc Welding

b) Shielded Metal Arc Welding

c) Sheet Metal Arc Welding

d) Solid Metal Arc Welding

SMAW uses a flux‐coated electrode to shield the arc.

• Which is a destructive test?

a) Liquid penetrant

b) Tensile test

c) Magnetic particle

d) Ultrasonic

Tensile testing breaks the specimen to determine strength. 2 / 3

6. Undercut is:

a) Excess weld deposit

b) A groove melted into base metal not filled by weld metal

c) A type of crack

d) Porosity cluster

Undercut weakens the weld by reducing cross-sectional area.

• Which electrode classification applies to mild steel SMAW?

a) ER70S-2

b) E7018

c) E6010G

d) ER308L

E7018 is a common low-hydrogen steel electrode.

8. Excessive heat input can lead to:

a) Increased strength

b) Distortion

c) Reduced distortion

d) Cleaner welds

High heat causes expansion and contraction leading to distortion.

• Which method detects surface-breaking defects using capillary action?

a) UT

b) RT

c) MT

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