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Machine Design

Machine Design
The draw of cotter need not exceed

3 mm
5 mm
20 mm
10 mm

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Machine Design
The maximum normal stress theory is used for

Plastic materials
Brittle materials
Non-ferrous materials
Ductile materials

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Machine Design
A connecting rod is designed as a

Long column
All of these
Strut
Short column

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Machine Design
The suitable material for belt in agricultural machinery is

Balata gum
Rubber
Leather
Cotton duck

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Machine Design
The connecting rod bolts are tightened up with initial tension greater than the external load so that

Bolts are weakest elements
Bolts will not loosen during service
The resultant load on the bolt would not be affected by the external cyclic load
Joint may not open up

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Machine Design
The permissible stress for carbon steel under static loading is generally taken as

4000-4500 kg/cm²
2000-3000 kg/m²
3000-4000 kg/cm²
7500-10,000 kg/cm²

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