Manufacturing Technology (3151912) MCQs

MCQs of Metal Joining Processes

Showing 101 to 110 out of 137 Questions
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101.

Two M.S. plates, 20 cm thick for boiler drum are to be butt welded. Which of the following processes would be best suited

(a)

Submerged arc welding
(b)

Electroslag welding
(c)

Electric resistance welding
(d)

TIG/MIG welding
Answer:

Option (b)

102.

In shielded arc welding

(a)

large electrode is used
(b)

welding rod coated with slag is used
(c)

welding rod coated with fluxing material is used
(d)

none of the above
Answer:

Option (c)

103.

Thermit welding is often used in

(a)

replacing broken gear teeth
(b)

repairing broken shears
(c)

joining rails, truck frames and locomotive frames etc.
(d)

all of the above
Answer:

Option (d)

104.

The welding process used in joining mild steel shanks to high speed drills, is

(a)

spot welding
(b)

seam welding
(c)

flash butt welding
(d)

upset butt welding
Answer:

Option (c)

105.

The welding process used to join the ends of two pipes of uniform cross-section, is

(a)

spot welding
(b)

seam welding
(c)

projection welding
(d)

upset butt welding
Answer:

Option (d)

106.

The electron beam welding can be carried out in

(a)

open air
(b)

a shielded gas environment
(c)

vacuum
(d)

a pressurised inert gas chamber
Answer:

Option (c)

107.

Thermit welding is a form of

(a)

Resistance welding
(b)

Gas welding
(c)

Fusion welding
(d)

Forge welding
Answer:

Option (c)

108.

Thermit, used in thermit welding, is a mixture of

(a)

charcoal and iron oxide
(b)

charcoal and aluminium
(c)

iron oxide and aluminium
(d)

charcoal, iron oxide and aluminium
Answer:

Option (c)

109.

In thermit welding, he iron oxide and aluminium oxide are mixed in the proportion of

(a)

1:1
(b)

3:1
(c)

1:3
(d)

Mixture is of different oxides
Answer:

Option (b)

110.

The advantage of thermit welding is that

(a)

all parts of the weld section are molten at the same time
(b)

weld cools almost uniformly
(c)

results in a minimum problem with internal residual stresses
(d)

results in a minimum problem with internal residual stresses
Answer:

Option (d)

Showing 101 to 110 out of 137 Questions
8 9 10 11 12 13