The ratio of driving tensions in V-belt drives is __________ flat belt drives.

Machine Design
The ratio of driving tensions in V-belt drives is __________ flat belt drives.

sin α times more than

cosec α times more than

Equal to

sin α times less than

sin α times more than

cosec α times more than

Equal to

sin α times less than

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Machine Design
Oil in journal bearing should be applied at the point where load is

Average

Maximum

Any one of the above

Nil or lightest

Average

Maximum

Any one of the above

Nil or lightest

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Machine Design
The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

22.5 kN

15 kN

7.5 kN

10.6 kN

22.5 kN

15 kN

7.5 kN

10.6 kN

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Machine Design
The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians)

(P1 - mv²)/ (P2 - mv²) = e–ᶠα

P1 / P2 = e–ᶠα

P1 / P2 = eᶠα

(P1 - mv²)/ (P2 - mv²) = eᶠα

(P1 - mv²)/ (P2 - mv²) = e–ᶠα

P1 / P2 = e–ᶠα

P1 / P2 = eᶠα

(P1 - mv²)/ (P2 - mv²) = eᶠα

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Machine Design
Plastic flow in ductile materials

Depends on other considerations

Increases the seriousness of static loading stress concentration

Lessens the seriousness of static loading stress concentration

Has no effect on it

Depends on other considerations

Increases the seriousness of static loading stress concentration

Lessens the seriousness of static loading stress concentration

Has no effect on it

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Machine Design
Elastic nut is a locking device in which

One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

A slot is cut partly in middle of nut and then slot reduced by tightening a screw

One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

A slot is cut partly in middle of nut and then slot reduced by tightening a screw

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Machine Design

Machine Design The ratio of driving tensions in V-belt drives is __________ flat belt drives.

Machine Design Oil in journal bearing should be applied at the point where load is

Machine Design The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians)

Machine Design Plastic flow in ductile materials

Machine Design Elastic nut is a locking device in which

Machine Design
The ratio of driving tensions in V-belt drives is __________ flat belt drives.

Machine Design
Oil in journal bearing should be applied at the point where load is

Machine Design
The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

Machine Design
The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians)

Machine Design
Plastic flow in ductile materials

Machine Design
Elastic nut is a locking device in which