A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress)

Machine Design
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress)

σ [1 + (b/3a)]

σ [1 + (2a/b)]

σ [1 + (b/2a)]

σ [1 + (3a/b)]

σ [1 + (b/3a)]

σ [1 + (2a/b)]

σ [1 + (b/2a)]

σ [1 + (3a/b)]

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Machine Design
The bearings of medium series have capacity __________ over the light series.

10 to 20%

20 to 30%

30 to 40%

40 to 50%

10 to 20%

20 to 30%

30 to 40%

40 to 50%

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Machine Design
If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension)

P1 + P2

[(√P1 + √P2)/2]²

[⅟₂ × (P1 + P2)] + Pc

⅟₂× (P1 + P2)

P1 + P2

[(√P1 + √P2)/2]²

[⅟₂ × (P1 + P2)] + Pc

⅟₂× (P1 + P2)

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

None of these

Non-intersecting and nonparallel and the teeth are curved

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

Intersecting and the teeth are curved

None of these

Non-intersecting and nonparallel and the teeth are curved

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

Intersecting and the teeth are curved

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Move towards right of the bearing making the metal to metal contact

Have contact at the bottom most of the bearing

Move towards left of the bearing making metal to metal contact

Move towards right of the bearing making no metal to metal contact

Move towards right of the bearing making the metal to metal contact

Have contact at the bottom most of the bearing

Move towards left of the bearing making metal to metal contact

Move towards right of the bearing making no metal to metal contact

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Machine Design
In a turnbuckle, if one of the rods has left hand threads, then the other rod will have

Right hand threads

Left hand threads

Pointed threads

Multiple threads

Right hand threads

Left hand threads

Pointed threads

Multiple threads

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Machine Design

Machine Design The bearings of medium series have capacity __________ over the light series.

Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension)

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

Machine Design When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Machine Design In a turnbuckle, if one of the rods has left hand threads, then the other rod will have

Machine Design
The bearings of medium series have capacity __________ over the light series.

Machine Design
If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension)

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

Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Machine Design
In a turnbuckle, if one of the rods has left hand threads, then the other rod will have