Automobile Engineering | Mechanical Engineering

A petrol that detonates easily is called

Byadmin September 14, 2022

Question: A petrol that detonates easily is called
[A].

high octane petrol

[B].

low octane petrol

[C].

unleaded petrol

[D].

blended fuel

Answer: Option B

Explanation:

No answer description available for this question.

Hydraulics and Fluid Mechanics | Mechanical Engineering

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

Question: In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
[A].

less than
[B].
more than

Answer: Option A

Explanation:

No answer description available for this question.

Read More In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
Mechanical Engineering | Production Engineering

In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called

Question: In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
[A].

friction zone
[B].
work-tool contact zone
[C].
shear zone
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The central air conditioning system has __________ overall efficiency as compared to individual systems.

Question: The central air conditioning system has __________ overall efficiency as compared to individual systems.
[A].

same
[B].
lower
[C].
higher

Answer: Option C

Explanation:

No answer description available for this question.

Read More The central air conditioning system has __________ overall efficiency as compared to individual systems.
Hydraulic Machines | Mechanical Engineering

If the ratio of all the corresponding linear dimensions are equal, then the model and the prototype are said to have

Question: If the ratio of all the corresponding linear dimensions are equal, then the model and the prototype are said to have
[A].

geometric similarity
[B].
kinematic similarity
[C].
dynamic similarity
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More If the ratio of all the corresponding linear dimensions are equal, then the model and the prototype are said to have
Automobile Engineering | Mechanical Engineering

The battery is an electrochemical device, which means battery

Question: The battery is an electrochemical device, which means battery
[A].

makes chemicals by mechanical means
[B].
uses chemical action to provide electricity
[C].
has curved plates instead of flat plates
[D].
does not use an electrolyte

Answer: Option B

Explanation:

No answer description available for this question.

Read More The battery is an electrochemical device, which means battery
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

Question: A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.
[A].

same
[B].
lower
[C].
higher

Answer: Option C

Explanation:

No answer description available for this question.

Read More A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

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