A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

Machine Design
A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

2.5

3.5

2.8

3

2.5

3.5

2.8

3

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Machine Design
An open belt drive is used when

Shafts are arranged parallel and rotate in the opposite directions

Shafts are arranged parallel and rotate in the same directions

Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

Shafts are arranged at right angles and rotate in one definite direction

Shafts are arranged parallel and rotate in the opposite directions

Shafts are arranged parallel and rotate in the same directions

Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

Shafts are arranged at right angles and rotate in one definite direction

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Machine Design
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

Angular bevel gears

Crown bevel gears

Miter gears

Internal bevel gears

Angular bevel gears

Crown bevel gears

Miter gears

Internal bevel gears

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Machine Design
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

7.2 N/mm² compression

3.6 N/mm² compression

3.6 N/mm² tension

7.2 N/mm² tension

7.2 N/mm² compression

3.6 N/mm² compression

3.6 N/mm² tension

7.2 N/mm² tension

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Machine Design
The taper on cotter varies from

1 in 15 to 1 in 10

1 in 32 to 1 in 24

1 in 48 to 1 in 24

1 in 24 to 1 in 20

1 in 15 to 1 in 10

1 in 32 to 1 in 24

1 in 48 to 1 in 24

1 in 24 to 1 in 20

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Machine Design
Spring stiffness is

Its ability to absorb shocks

Ratio of coil diameter to wire diameter

Its capability of storing energy

Load required to produce unit deflection

Its ability to absorb shocks

Ratio of coil diameter to wire diameter

Its capability of storing energy

Load required to produce unit deflection

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Machine Design

Machine Design An open belt drive is used when

Machine Design When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

Machine Design A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

Machine Design The taper on cotter varies from

Machine Design Spring stiffness is

Machine Design
An open belt drive is used when

Machine Design
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

Machine Design
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

Machine Design
The taper on cotter varies from

Machine Design
Spring stiffness is