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MCQ - Mechanical TNPSC JTO
JTO - 436 - Fitter - 436 - Unit IV Welding

176)   

The main precaution while changing gas cylinders is:

A.
B.
C.
D.
Answer: B
177)   

The correct order for shutting down oxy-acetylene equipment is:

A.
B.
C.
D.
Answer: B
178)   

The correct shade number of welding goggles for gas welding is:

A.
B.
C.
D.
Answer: B
179)   

Which welding process is best suited for thin sheet metals?

A.
B.
C.
D.
Answer: C
180)   

Which welding process is preferred for high-quality aluminum welding?

A.
B.
C.
D.
Answer: B
181)   

While welding in a confined space, the welder must use:

A.
B.
C.
D.
Answer: B
182)   

A welder notices excessive spatter during arc welding. The most likely cause is:

A.
B.
C.
D.
Answer: B
183)   

Which type of joint is used to weld two plates at 90° angle?

A.
B.
C.
D.
Answer: B
184)   

Which weld position is the easiest for beginners?

A.
B.
C.
D.
Answer: A
185)   

In arc welding, if the arc length is too long:

A.
B.
C.
D.
Answer: B
186)   

Which electrode number represents mild steel welding?

A.
B.
C.
D.
Answer: A
187)   

The “70” in electrode E7018 indicates:

A.
B.
C.
D.
Answer: B
188)   

In welding symbol representation, a filled triangle indicates:

A.
B.
C.
D.
Answer: B
189)   

Which welding process is most productive for long straight welds in heavy sections?

A.
B.
C.
D.
Answer: C
190)   

Which flame type is used for welding brass?

A.
B.
C.
D.
Answer: C
191)   

Which NDT method is best for detecting surface cracks in welds?

A.
B.
C.
D.
Answer: C
192)   

The main cause of porosity in welds is:

A.
B.
C.
D.
Answer: B
193)   

A double-V butt joint is used instead of a single-V butt joint to:

A.
B.
C.
D.
Answer: B
194)   

In arc welding, “arc length” refers to:

A.
B.
C.
D.
Answer: B
195)   

Which cutting process can cut non-ferrous metals effectively?

A.
B.
C.
D.
Answer: C
196)   

For welding stainless steel with SMAW, which electrode is preferred?

A.
B.
C.
D.
Answer: C
197)   

Preheating before welding cast iron is done to:

A.
B.
C.
D.
Answer: B
198)   

In welding, “undercut” reduces:

A.
B.
C.
D.
Answer: A
199)   

Which safety device should always be installed between gas regulator and hose?

A.
B.
C.
D.
Answer: B
200)   

Which of the following is not an advantage of arc welding?

A.
B.
C.
D.
Answer: C