Fluid Mechanics & Thermal Sciences-Internal Combustion Engines [GATE (Graduate Aptitude Test in Engineering) Mechanical Engineering (ME)]: Questions 1 - 3 of 107

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Question 1

Question MCQ▾

Consider the following statements:

1. Supercharging increases the power output and increases the volumetric efficiency.

2. Supercharging is more suitable for S. I. engines than C. I. engines.

3. The limit of supercharging for an S. I. engine is set by knock while that for a C. I. engine is set by thermal loading.

Which of the statements given above are correct?

Choices

Choice (4)Response

a.

1,2 and 3

b.

1 and 2

c.

1 and 3

d.

2 and 3

Edit

Question 2

Question Assertion-Reason▾

Assertion(Ꭺ)

The C. I. engine is found to be more efficient than an S. I. engine.

Reason(Ꭱ)

Modern C. I. engines operate on a dual-cycle, which has efficiency greater than the Otto cycle.

Choices

Choice (4)Response

a.

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

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

Ꭺ is false but Ꭱ is true

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Question 3

Question MCQ▾

Consider the following statements:

  1. Supercharging increases the power output and increases the volumetric efficiency.
  2. Supercharging is more suitable for S. I. engines than C. I. engines.
  3. The limit of supercharging for an S. I. engine is set by knock while that for a C. I. engine is set by thermal loading.

Which of the statements given above are correct?

Choices

Choice (4)Response

a.

Only 1 and 3

b.

Only 1 and 2

c.

1,2 and 3

d.

Only 2 and 3

Edit