### Related Questions

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# The design of shafts made of brittle materials is based on

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# The process which improves the machinability of steels, but lowers the hardness and tensile strength is

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4

# The face of the tooth is the

A. Surface of the top of the tooth

B. Surface of the tooth above the pitch surface

C. Surface of the tooth below the pitch surface

D. Width of the tooth measured along the pitch circle

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4

# In a marine flange coupling, the thickness of flange is taken as

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4

# According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm)

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4

# A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

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4

# A spring is used to

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# A backing ring is used inside the pipe joint when making a

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# Eulers formula for a mild steel column is not valid if the slenderness ratio is

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4

# A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as

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# The centre distance between two meshing involute gears is equal to

A. (Sum of base circle radii)/cosφ

B. (Difference of base circle radii)/cosφ

C. (Sum of pitch circle radii)/cosφ

D. (Difference of pitch circle radii)/cosφ

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# The cold working of metals is carried out __________ the recrystallisation temperature.

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# Stress concentration is caused due to

A. Variation in properties of material from point to point in a member

B. Pitting at points or areas at which loads on a member are applied

C. Abrupt change of section

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4

# The shear stress at a point in a shaft subjected to a torque is

A. Directly proportional to the polar moment of inertia and to the distance of the point from the axis

B. Directly proportional to the applied torque and inversely proportional to the polar moment of inertia

C. Directly proportional to the applied torque and the polar moment of inertia

D. Inversely proportional to the applied torque and the polar moment of inertia

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# Rivets are generally specified by

A. Thickness of plates to be riveted

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# The taper on cotter varies from

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# According to Indian standards, total numbers of tolerance grades are

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# The backlash for spur gears depends upon

C. Both module and pitch line velocity

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4

# Pick up wrong statement. Fatigue strength can be increased by

C. Grinding and lapping surface

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4

# The number of slots in a 25 mm castle nut is

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4

# Belt slip may occur due to

C. Driving pulley too small

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# If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to

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# Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

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# The property of a material which enables it to be drawn into wires with the application of a tensile force, is called

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4

# For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

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4

# For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle)

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4

# The metal suitable for bearings subjected to heavy loads is

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# The design of pin of a rocker arm of an I.C. engine is based on

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# The velocity factor for precision metallic gears cut with high accuracy and operating at velocities upto 20 m/s is equal to

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# The plasticity is the property of a material which enables it to

A. Regain its original shape after deformation when the external forces are removed

B. Draw into wires by the application of a tensile force

C. Resist fracture due to high impact loads

D. Retain deformation produced under load permanently