Manufacturing and Industrial Engineering (IES-ESE Mechanical Engineering): Questions 63 - 67 of 81

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Question number: 63

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2012

Assertion-Reason▾

Assertion (Ꭺ)

DC with reverse polarity is used in MIG welding

Reason (Ꭱ)

Use of DC with reverse polarity enables deeper penetration and a clean Surface

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

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

Question number: 64

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2012

MCQ▾

Question

The advantage of the welding process is

Choices

Choice (4) Response

a.

It helps in checking of distortion of work piece

b.

Large number of metals and alloys, both similar and/or dissimilar can be joined.

c.

Heat produced during the welding does not produce metallurgical changes.

d.

It relieves the joint from residual stresses

Question number: 65

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 1994

MCQ▾

Question

Which one of the following welding processes uses non- consumable electrodes?

Choices

Choice (4) Response

a.

Manual arc welding

b.

MIG welding

c.

TIG welding

d.

Submerged arc welding.

Question number: 66

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2005

MCQ▾

Question

Which of the following are the major characteristics of submerged arc welding?

1. High welding speeds.

2. High deposition rates.

3. Low penetration.

4. Low cleanliness.

Select the correct answer using the code given below:

Choices

Choice (4) Response

a.

1 and 2

b.

2 and 3

c.

3 and 4

d.

1, 2 and 3

Question number: 67

» Manufacturing and Industrial Engineering » Joining » Physics of Welding

Appeared in Year: 2010

MCQ▾

Question

In arc welding, the arc length should be equal to

Choices

Choice (4) Response

a.

3 times the rod diameter

b.

4.5 times the rod diameter

c.

Rod diameter

d.

1.5 times the rod diameter

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