Ic Engines And Nuclear Power Plants | Mechanical Engineering

The air standard efficiency ofan I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)

Byadmin September 14, 2022

Question: The air standard efficiency ofan I.C. engine is given by (where r = Compression ratio, and γ = Ratio of specific heats)
[A].

1 – rγ – 1

[B].

1 + rγ – 1

[C].

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Ic Engines And Nuclear Power Plants | Mechanical Engineering

In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.

Question: In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.
[A].

Correct
[B].
Incorrect

Answer: Option B

Explanation:

No answer description available for this question.

Read More In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.
Ic Engines And Nuclear Power Plants | Mechanical Engineering

The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in metres, N = Speed of engine in r.p.m., S – Spring balance reading in newtons, D = Dia. of brake drum in metres, and d = Dia. of rope in metres)

Question: The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in metres, N = Speed of engine in r.p.m., S – Spring balance reading in newtons, D = Dia. of brake drum in metres, and d = Dia. of rope in metres)
[A].

[B].

[C].

[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More The brake power (B.P.) of the engine is given by (where W = Brake load or dead load in newtons, l = Length of arm in metres, N = Speed of engine in r.p.m., S – Spring balance reading in newtons, D = Dia. of brake drum in metres, and d = Dia. of rope in metres)
Industrial Engineering And Production Management | Mechanical Engineering

At the break even point,

Question: At the break even point,
[A].

total cost is more than the sales revenue
[B].
total cost is less than the sales revenue
[C].
total cost is equal to sales revenue
[D].
fixed cost is equal to variable cost

Answer: Option C

Explanation:

No answer description available for this question.

Read More At the break even point,
Engineering Mechanics | Mechanical Engineering

If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be

Question: If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be
[A].

same
[B].
half
[C].
double

Answer: Option B

Explanation:

No answer description available for this question.

Read More If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be
Hydraulics and Fluid Mechanics | Mechanical Engineering

A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.

Question: A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.
[A].

steady
[B].
streamline
[C].
turbulent
[D].
unsteady

Answer: Option A

Explanation:

No answer description available for this question.

Read More A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.
Hydraulics and Fluid Mechanics | Mechanical Engineering

A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

Question: A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.

Read More A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

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