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:
- Mass transfer refers to mass in transit due to a species concentration gradient in a mixture.
- Must have a mixture of two or more species for mass transfer to occur.
- The species concentration gradient is the driving potential for mass transfer.
- 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 |
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 |
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 |
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 |