Machine Design
The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

2εc + εl
εc² + εl
εc + 2εl
εc + εl²

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that

Tolerance grade for the hole is 6 and for the shaft is 5
Tolerance grade for the shaft is 6 and for the hole is 5
Tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
Tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7

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Machine Design
When the belt speed increases

Power transmitted remains the same
Power transmitted increases to a maximum value and then decreases
Power transmitted increases
Power transmitted decreases

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