Manufacturing Technology (3151912) MCQs

MCQs of Metal Joining Processes

Showing 131 to 137 out of 137 Questions
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131.

In the following welding technique, the flame of the torch is directed against the completed weld

(a)

Overhead welding
(b)

Horizontal welding
(c)

Forehand welding
(d)

Backhand welding
Answer:

Option (d)

132.

The electrodes used in spot welding have a tip of

(a)

stainless steel
(b)

aluminium
(c)

copper
(d)

brass

 
Answer:

Option (c)

133.

The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)

(a)

t
(b)

1.5 t
(c)

3 t
(d)

6 t
Answer:

Option (a)

134.

The material used for coating the electrode is called

(a)

Protective layer
(b)

Flux
(c)

Binder
(d)

Slag
Answer:

Option (b)

135.

The main criterion for selection of electrode diameter in arc welding is

(a)

Material to be welded
(b)

Type of welding process
(c)

Thickness of material
(d)

Voltage used
Answer:

Option (c)

136.

Filler material in welding should have

(a)

Same composition as the parent metal to be welded
(b)

Same melting temperature as the parent metal to be welded
(c)

Same composition and same melting temperature as the parent metal to be welded
(d)

Same composition as of electrode
Answer:

Option (c)

137.

The surface and sub-surface cracks in non-magnetic alloys can be inspected by

(a)

X-ray testing
(b)

Ultrasonic testing
(c)

Magnetic particle inspection testing
(d)

Dye penetrant testing
Answer:

Option (d)

Showing 131 to 137 out of 137 Questions
9 10 11 12 13 14