In Vickers hardness testing, the pyramid indentor apex is

Machine Design
In Vickers hardness testing, the pyramid indentor apex is

152°

40°

122°

136°

152°

40°

122°

136°

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Machine Design
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

Either A or B

Fully

None of these

Partially

Either A or B

Fully

None of these

Partially

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Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Angular bevel gears

Internal bevel gears

Crown bevel gears

Mitre gears

Angular bevel gears

Internal bevel gears

Crown bevel gears

Mitre gears

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Machine Design
Multiple threads are used to secure

High mechanical advantage

High load lifting capacity

Low efficiency

High efficiency

High mechanical advantage

High load lifting capacity

Low efficiency

High efficiency

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Machine Design
According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by

Equating tearing resistance of the plate to the crushing resistance of the rivets

Equating shearing resistance to the crushing resistance of the rivets

None of these

Equating tearing resistance of the plate to the shearing resistance of the rivets

Equating tearing resistance of the plate to the crushing resistance of the rivets

Equating shearing resistance to the crushing resistance of the rivets

None of these

Equating tearing resistance of the plate to the shearing resistance of the rivets

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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 (neglecting centrifugal tension) will be equal to (Where, Pc is centrifugal tension)

[⅟₂ × (P1 + P2)] + Pc

P1 - P2

P1 + P2

⅟₂ × (P1 + P2)

[⅟₂ × (P1 + P2)] + Pc

P1 - P2

P1 + P2

⅟₂ × (P1 + P2)

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Machine Design

Machine Design In Vickers hardness testing, the pyramid indentor apex is

Machine Design A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

Machine Design When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Machine Design Multiple threads are used to secure

Machine Design According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by

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

Machine Design
In Vickers hardness testing, the pyramid indentor apex is

Machine Design
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Machine Design
Multiple threads are used to secure

Machine Design
According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by

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