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Mechanical Engineering

In metal machining, the work-tool contact zone is a zone where heat is generated due to

Mechanical Engineering, Production Engineering /
Question: In metal machining, the work-tool contact zone is a zone where heat is generated due to
[A].

plastic deformation of metal

[B].

burnishing friction

[C].

friction between the moving chip and the tool face

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

In metal machining, the work-tool contact zone is a zone where heat is generated due to Read More »

Mechanical Engineering, Production Engineering

In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called

Mechanical Engineering, Production Engineering /
Question: In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called
[A].

friction zone

[B].

work-tool contact zone

[C].

shear zone

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called Read More »

Mechanical Engineering, Production Engineering

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

Mechanical Engineering, Production Engineering /
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.

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

Mechanical Engineering, Production Engineering

A petrol engine of a car develops 125 N-m torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is

Automobile Engineering, Mechanical Engineering /
Question: A petrol engine of a car develops 125 N-m torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is
[A].

8.091 N-m

[B].

80.91 N-m

[C].

809.1 N-m

[D].

8091 N-m

Answer: Option C

Explanation:

No answer description available for this question.

A petrol engine of a car develops 125 N-m torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is Read More »

Automobile Engineering, Mechanical Engineering

In metal cutting, use of low feeds and high cutting speeds is desired when the objective is

Mechanical Engineering, Production Engineering /
Question: In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
[A].

high metal removal rate

[B].

dry machining

[C].

use of soft cutting tool

[D].

surface finish

Answer: Option D

Explanation:

No answer description available for this question.

In metal cutting, use of low feeds and high cutting speeds is desired when the objective is Read More »

Mechanical Engineering, Production Engineering

In metal cutting operations, the shear angle is the angle made by the shear plane with the

Mechanical Engineering, Production Engineering /
Question: In metal cutting operations, the shear angle is the angle made by the shear plane with the
[A].

direction of the tool axis

[B].

direction of tool travel

[C].

perpendicular to the direction of the tool axis

[D].

central plane of the workpiece

Answer: Option B

Explanation:

No answer description available for this question.

In metal cutting operations, the shear angle is the angle made by the shear plane with the Read More »

Mechanical Engineering, Production Engineering