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

2.8

3.5

2.5

3

2.8

3.5

2.5

3

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Machine Design
In skew bevel gearing, the axes of shafts are

Non-intersecting and nonparallel and the teeth are curved

Intersecting and the teeth are curved

None of these

Non-intersecting and non-parallel and the teeth are straight

Non-intersecting and nonparallel and the teeth are curved

Intersecting and the teeth are curved

None of these

Non-intersecting and non-parallel and the teeth are straight

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Machine Design
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

M + √(M² + T²)

(1/2) × [M + √(M² + T²)]

√(M² + T²)

(1/2) × √(M² + T²)

M + √(M² + T²)

(1/2) × [M + √(M² + T²)]

√(M² + T²)

(1/2) × √(M² + T²)

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Machine Design
If a load W is applied instantaneously on a bar; Then the stress induced in bar will

Be independent of ratio of mass of load W to mass of bar (y)

Increase with increase in y

Decrease with decrease in y

Depend on other considerations

Be independent of ratio of mass of load W to mass of bar (y)

Increase with increase in y

Decrease with decrease in y

Depend on other considerations

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Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

2 d

3 d

5 d

4 d

2 d

3 d

5 d

4 d

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Machine Design
Which of the following welded joint is designed for shear strength?

All of these

Parallel fillet welded joint

Transverse fillet welded joint

Butt welded joint

All of these

Parallel fillet welded joint

Transverse fillet welded joint

Butt welded joint

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Machine Design

Machine Design In skew bevel gearing, the axes of shafts are

Machine Design When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

Machine Design If a load W is applied instantaneously on a bar; Then the stress induced in bar will

Machine Design In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

Machine Design Which of the following welded joint is designed for shear strength?

Machine Design
In skew bevel gearing, the axes of shafts are

Machine Design
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

Machine Design
If a load W is applied instantaneously on a bar; Then the stress induced in bar will

Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

Machine Design
Which of the following welded joint is designed for shear strength?