Hydraulic Machines | Mechanical Engineering

A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.

Byadmin September 14, 2022

Question: A Kaplan turbine is preferred for a specific speed of 300 to 1000 r.p.m.
[A].

Yes

[B].

Answer: Option A

Explanation:

No answer description available for this question.

Automobile Engineering | Mechanical Engineering

The calorific value of petrol is about

Question: The calorific value of petrol is about
[A].

36.5 – 38.5 MJ/kg
[B].
39.4 – 42.5 MJ/kg
[C].
42.7 – 43.5 MJ/kg
[D].
45.5 – 47 MJ/kg

Answer: Option C

Explanation:

No answer description available for this question.

Read More The calorific value of petrol is about
Hydraulics and Fluid Mechanics | Mechanical Engineering

A structure used to dam up a stream or river over which the water flows is called

Question: A structure used to dam up a stream or river over which the water flows is called
[A].

orifice
[B].
notch
[C].
weir
[D].
dam

Answer: Option C

Explanation:

No answer description available for this question.

Read More A structure used to dam up a stream or river over which the water flows is called
Ic Engines And Nuclear Power Plants | Mechanical Engineering

As compared to air standard cycle, in actual working, the effect of variation in specific heats is to

Question: As compared to air standard cycle, in actual working, the effect of variation in specific heats is to
[A].

increase maximum pressure and maximum temperature
[B].
reduce maximum pressure and maximum temperature
[C].
increase maximum pressure and decrease maximum temperature
[D].
decrease maximum pressure and increase maximum temperature

Answer: Option B

Explanation:

No answer description available for this question.

Read More As compared to air standard cycle, in actual working, the effect of variation in specific heats is to
Engineering Materials | Mechanical Engineering

A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.

Question: A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.
[A].

True
[B].
False

Answer: Option A

Explanation:

No answer description available for this question.

Read More A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.
Industrial Engineering And Production Management | Mechanical Engineering

For material transportation, conveyors are used when the prevailing conditions include

Question: For material transportation, conveyors are used when the prevailing conditions include
[A].

loads are uniform
[B].
routes do not vary
[C].
materials move relatively continuously
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More For material transportation, conveyors are used when the prevailing conditions include
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The capillary tube is not used in large capacity refrigeration systems because

Question: The capillary tube is not used in large capacity refrigeration systems because
[A].

cost is too high
[B].
capacity control is not possible
[C].
it is made of copper
[D].
required pressure drop can not be achieved

Answer: Option B

Explanation:

No answer description available for this question.

Read More The capillary tube is not used in large capacity refrigeration systems because

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