Manufacturing and Industrial Engineering-Joining (IES-ESE Mechanical Engineering): Questions 9 - 13 of 50

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Question number: 9

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 1993

MCQ▾

Question

Electron beam welding can be carried out in

Choices

Choice (4) Response

a.

Open air

b.

Vacuum

c.

A shielding gas environment

d.

A pressurized inert gas chamber

Question number: 10

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2006

Assertion-Reason▾

Assertion (Ꭺ)

Aluminium has poor weldability.

Reason (Ꭱ)

Aluminium has high thermal conductivity and high affinity to oxygen.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question number: 11

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2010

Assertion-Reason▾

Assertion (Ꭺ)

It is generally difficult to weld Aluminum parts by normal arc welding process.

Reason (Ꭱ)

Hard and brittle Aluminum-oxide film is formed at the welded joints.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 12

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2005

MCQ▾

Question

In atomic hydrogen welding, hydrogen acts as

Choices

Choice (4) Response

a.

A lubricant to increase the flow characteristics of weld metal

b.

A heating agent

c.

An effective shielding gas protecting the weld

d.

One of the gases to generate the flame

Question number: 13

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 1992

MCQ▾

Question

The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

Choices

Choice (4) Response

a.

Less than 0.1 percent

b.

Anywhere between 0.1 to 1.0 percent

c.

Less than 0.3 percent

d.

More than 0.3 percent

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