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Machine Design

Machine Design
Belt slip may occur due to

Driving pulley too small
All of these
Heavy load
Loose belt

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Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

Greater than
None of these
Equal to
Less than

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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

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

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

40 to 50%
30 to 40%
20 to 30%
10 to 20%

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Machine Design
A cotter joint is used to connect two __________ rods.

None of these
Parallel
Co-axial
Perpendicular

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Machine Design
The power transmitted by belt drive depends upon

All of these
Arc of contact
Belt velocity
Initial belt tension

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