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DMRC 2018 Mechanical Engineering Quiz 14
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Question 1
On completion of heat treatment, the austenite structure would be retained if :
Question 2
A nail of mass 0.015 kg is driven into a fixed wooden block, Its initial speed is 25 m/s and it is brought to rest in 6ms. Find the impulse.
Question 3
The condenser and evaporator tubes in a Freon refrigeration plant are made of ____.
Question 4
Kinetic theory of gases assumes that the collisions between the molecules are ____.
Question 5
Calculate the tolerance unit if diameter of steps are 60 mm and 80 mm_______.
Question 6
Find the revolution per minute(rpm) of a rolling wheel like that shown in Fig, Where VA = 90.5 kmph and r = 25 cm
Question 7
Critical or whirling speed is the speed at which the shaft tends to vibrate violently in __.
Question 8
From the lists given below, choose the most appropriate set of heat treatment process and the corresponding process characteristics ______.
Question 9
The given structure is designed to be used for construction of heavy duty crane arm. The following truss is:
Question 10
In actual refrigeration systems, the compressor handles vapour only. What is this process commonly referred to as ___________.
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ESE & GATE MEGeneralJul 31ESE & GATE ME