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

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

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Move towards left of the bearing making metal to metal contact
Move towards right of the bearing making no metal to metal contact
Move towards right of the bearing making the metal to metal contact
Have contact at the bottom most of the bearing

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