GATE ME purpose:exam-prep PYQs & Answers — Page 57

Questions 561–570 of 1040. Imported answers require independent review unless marked reviewed.

Topic practice 1040 questionsPage 57 of 104

Match the following.

Heat treatment process	Effect
P: Temper	1. Strengthening
Q: Quenching	2. Toughening
R: Annealing	3. Hardening
S: Normalizing	4. Softening

Your answerChoose one option.

P-2, Q-3, R-4, S-1

P-1, Q-1, R-3, S-2

P-3, Q-3, R-1, S-3

P-4, Q-3, R-2, S-1

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Which one of the following statements about a phase diagram is INCORRECT?

Your answerChoose one option.

It indicates the temperature at which different phases start to melt

Relative amount of different phases can be found under given equilibrium conditions

It gives information on transformation rates

Solid solubility limits are depicted by it

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The base of a brass bracket needs rough grinding. For this purpose, the most suitable grinding wheel grade specification is

Your answerChoose one option.

C30Q12V

A50G8V

C90J4B

A30D12V

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The figure below shows a symbolic representation of the surface texture in a perpendicular lay orientation with indicative values (I through VI) marking the various specifications whose definitions are listed below.

Diagram for Mechanical Engineering question 12

P: Maximum Waviness Height (mm); Q: Maximum Roughness Height (mm); R: Minimum Roughness Height (mm); S: Maximum Waviness Width (mm); T: Maximum Roughness Width (mm); U: Roughness Width Cutoff (mm).

The correct match between the specifications and the symbols (I to VI) is

Your answerChoose one option.

I-R, II-Q, III-P, IV-S, V-U, VI-T

I-R, II-P, III-U, IV-S, V-T, VI-Q

I-U, II-S, III-Q, IV-T, V-R, VI-P

I-Q, II-U, III-R, IV-T, V-S, VI-P

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In the Critical Path Method (CPM), the cost-time slope of an activity is given by

Your answerChoose one option.

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In Materials Requirement Planning, if the inventory holding cost is very high and the setup cost is zero, which one of the following lot sizing approaches should be used?

Your answerChoose one option.

Economic Order Quantity

Lot-for-Lot

Base Stock Level

Fixed Period Quantity, for 2 periods

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Froude number is the ratio of

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buoyancy forces to viscous forces

inertia forces to viscous forces

buoyancy forces to inertia forces

inertia forces to gravity forces

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Which of the following conditions is used to determine the stable equilibrium of all partially submerged floating bodies?

Your answerChoose one option.

Centre of buoyancy must be above the centre of gravity

Centre of buoyancy must be below the centre of gravity

Metacentre must be at a higher level than the centre of gravity

Metacentre must be at a lower level than the centre of gravity

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Match the following non-dimensional numbers with the corresponding definitions:

Non-dimensional number	Definition
P: Reynolds number	1.
Q: Grashof number	2.
R: Nusselt number	3.
S: Prandtl number	4.

Your answerChoose one option.

P-1, Q-3, R-2, S-4

P-3, Q-1, R-2, S-4

P-4, Q-3, R-1, S-2

P-3, Q-1, R-4, S-2

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In the space above the mercury column in a barometer tube, the gauge pressure of the vapour is

Your answerChoose one option.

positive, but more than one atmosphere

negative

zero

positive, but less than one atmosphere

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