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In a four stroke cycle petrol engine, the inlet valve

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: In a four stroke cycle petrol engine, the inlet valve
[A].

opens at top dead centre and closes at bottom dead centre

[B].

opens at 20° before top dead centre and closes at 40° after bottom dead centre

[C].

opens at 20° after top dead centre and closes at 20° before bottom dead centre id) may open or close anywhere

Answer: Option B

Explanation:

No answer description available for this question.

In a four stroke cycle petrol engine, the inlet valve Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
[A].

equal to

[B].

below

[C].

above

Answer: Option B

Explanation:

No answer description available for this question.

In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure. Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

In a four stroke cycle engine, the sequence of operations is

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: In a four stroke cycle engine, the sequence of operations is
[A].

suction, compression, expansion and exhaust

[B].

suction, expansion, compression and exhaust

[C].

expansion, compression, suction and exhaust

[D].

compression, expansion, suction and exhaust

Answer: Option A

Explanation:

No answer description available for this question.

In a four stroke cycle engine, the sequence of operations is Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine.

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine.
[A].

higher

[B].

lower

Answer: Option A

Explanation:

No answer description available for this question.

A two stroke cycle engine gives __________ mechanical efficiency than a four stroke cycle engine. Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

A two stroke cycle engine occupies larger floor area than a four stroke cycle engine.

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: A two stroke cycle engine occupies larger floor area than a four stroke cycle engine.
[A].

Yes

[B].

No

Answer: Option B

Explanation:

No answer description available for this question.

A two stroke cycle engine occupies larger floor area than a four stroke cycle engine. Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

A two stroke cycle engine gives __________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: A two stroke cycle engine gives __________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.
[A].

half

[B].

same

[C].

double

[D].

four times

Answer: Option C

Explanation:

No answer description available for this question.

A two stroke cycle engine gives __________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed. Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

In a two stroke engine, the working cycle is completed in two revolutions of the crankshaft.

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: In a two stroke engine, the working cycle is completed in two revolutions of the crankshaft.
[A].

Correct

[B].

Incorrect

Answer: Option B

Explanation:

No answer description available for this question.

In a two stroke engine, the working cycle is completed in two revolutions of the crankshaft. Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

In a four stroke engine, the working cycle is completed in

Ic Engines And Nuclear Power Plants, Mechanical Engineering /
Question: In a four stroke engine, the working cycle is completed in
[A].

one revolution of the crankshaft

[B].

two revolutions of the crankshaft

[C].

three revolutions of the crankshaft

[D].

four revolutions of the crankshaft

Answer: Option B

Explanation:

No answer description available for this question.

In a four stroke engine, the working cycle is completed in Read More »

Ic Engines And Nuclear Power Plants, Mechanical Engineering

According to Darcy’s formula, the loss of head due to friction in the pipe is (where f = Darcy’s coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

Hydraulics and Fluid Mechanics, Mechanical Engineering /
Question: According to Darcy’s formula, the loss of head due to friction in the pipe is (where f = Darcy’s coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

According to Darcy’s formula, the loss of head due to friction in the pipe is (where f = Darcy’s coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe) Read More »

Hydraulics and Fluid Mechanics, Mechanical Engineering