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Machine Design

Machine Design
A single strap butt joint is always in __________ shear.

Triple share
Single
None of these
Double

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Machine Design
The groove angle of the pulley for rope drive is usually

35°
20°
60°
45°

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Machine Design
The ball bearings are provided with a cage

To maintain the balls at a fixed distance apart
To prevent the lubricant from flowing out
To facilitate slipping of balls
To reduce friction

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Machine Design
The material commonly used for machine tool bodies is

Aluminium
Brass
Cast iron
Mild steel

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Machine Design
A transmission shaft includes

Line shaft
Over head shaft
All of these
Counter shaft

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2100 N-m
2050 N-m
2136 N-m
2000 N-m

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