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DMRC 2018 Mechanical Engineering Quiz 13
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Question 1
Determine the change in distance from the floor of an object of mass 20N freely hung with the help of a inextensible rope over through a pulley. The 40N mass is at the other end of the rope at a height of 10 m from the floor.
Question 2
Most of the high speed steels contain which elements as the chief alloying element
Question 3
The effect of Cavitations is due to:
Question 4
For a Newtonian fluid
Question 5
Find the moment about force 100kg in plank positioned at point O?
Question 6
An angular acceleration 
where 
is in seconds is imparted to disc A by a motor. If initially the disc has an angular velocity of 
the velocity of block B at the time instant
seconds will be ?
Question 7
What will be the total force in y direction in a pipe shown?
Question 8
If the surface tension of water in contact with air is 0.075 N/m, the correction (in mm) need to be applied towards capillary rise in the manometric reading in tubes of 2.5 mm diameter will be ____.
Question 9
Which alphabet in heat treatment represents Tempering process in materials?
Question 10
Given that the peripheral speed of the grinding wheel of 100 mm diameter for cylindrical grinding of a steel workplace is 30 m/s, what will be the estimated rotational speed of the grinding wheel in revolution per minute (rpm)_____?
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