GATE (Graduate Aptitude Test in Engineering) Mechanical Engineering (ME): Questions 103 - 106 of 2209

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Question 103

Question MCQ▾

Consider the following statements:

  1. Mass transfer refers to mass in transit due to a species concentration gradient in a mixture.
  2. Must have a mixture of two or more species for mass transfer to occur.
  3. The species concentration gradient is the driving potential for mass transfer.
  4. Mass transfer by diffusion is analogous to heat transfer by conduction.

Which of the above statements are correct?

Choices

Choice (4)Response

a.

1,2, 3 and 4

b.

1,2 and 3 only

c.

2,3 and 4 only

d.

1,2 and 4 only

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Question 104

Appeared in Year: 2007 (IES)

Question MCQ▾

Which one of the following is the correct statement?

Gate is provided in moulds to

Choices

Choice (4)Response

a.

Feed the casting at a constant rate

b.

Give passage to gases

c.

Avoid cavities

d.

Compensate for shrinkage

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Question 105

Question MCQ▾

Which one of the following statements is correct?

The mass defect is

Choices

Choice (4)Response

a.

A measure

b.

The difference between mass of the nucleus and sum of the masses of the nucleons

c.

A characteristic of certain elements

d.

A term used to prove the relationship between mass and energy of fission energy

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Question 106

Appeared in Year: 2008 (IES)

Question MCQ▾

The pattern adopted for those castings where there are some portions which are structurally weak and are likely to break by the force of ramming are called:

Choices

Choice (4)Response

a.

Single piece pattern

b.

Loose piece pattern

c.

Follow board pattern

d.

Skelton pattern

Edit