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

3.0

3.5

2.5

2.8

3.0

3.5

2.5

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Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

(T₁ + T₂ + Tc)/2

T₁ + T₂ + Tc

(T₁ - T₂ + Tc)/2

T₁ - T₂ + Tc

(T₁ + T₂ + Tc)/2

T₁ + T₂ + Tc

(T₁ - T₂ + Tc)/2

T₁ - T₂ + Tc

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Machine Design
Allen bolts are

Provided with hexagonal depression in head

Designed for shock load

Used in aircraft application

Self locking bolts

Provided with hexagonal depression in head

Designed for shock load

Used in aircraft application

Self locking bolts

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Machine Design
For tight leakage joints, following type of thread is best suited

Metric

Square

Buttress

NPT (national pipe threads).

Metric

Square

Buttress

NPT (national pipe threads).

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Machine Design
The designation M 33 × 2 of a bolt means

Metric threads with cross-section of 33 mm

Bolt of 33 mm nominal diameter having 2 threads per cm

Metric threads of 33 mm outside diameter and 2 mm pitch

Metric threads of 33 numbers in 2 cm

Metric threads with cross-section of 33 mm

Bolt of 33 mm nominal diameter having 2 threads per cm

Metric threads of 33 mm outside diameter and 2 mm pitch

Metric threads of 33 numbers in 2 cm

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Machine Design
When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the

Initial tension or external load, whichever is greater

Initial tension

External load applied

Sum of the initial tension and external load applied

Initial tension or external load, whichever is greater

Initial tension

External load applied

Sum of the initial tension and external load applied

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Machine Design

Machine Design If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

Machine Design Allen bolts are

Machine Design For tight leakage joints, following type of thread is best suited

Machine Design The designation M 33 × 2 of a bolt means

Machine Design When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the

Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

Machine Design
Allen bolts are

Machine Design
For tight leakage joints, following type of thread is best suited

Machine Design
The designation M 33 × 2 of a bolt means

Machine Design
When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the