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BARC 2021 ME: Full Syllabus Test 5

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Question 1

Which one of the following mediums is used for the fastest cooling rate of steel quenching _________?

Question 2

A truss is said to be perfect when it satisfies the following conditions (m is the total number of members and j is the total number of joint)

Question 3

What parameter will remain constant in a throttling process ______?

Question 4

If the temperature of the sun is doubled, the rate of energy received on earth will be increased by a factor of

Question 5

Which one of the following is not a necessary information input to Material Requirements Planning?

Question 6

For laminar flow over a flat plate, the thickness of the boundary layer at a distance from the leading edge is found to be 5 mm. The thickness of the boundary layer at a downstream section, which is at twice the distance of the previous section from the leading edge, will be

Question 7

Weekly production requirements of a product are 1000 items. The cycle time of producing one product on a machine is 10 minutes. The factory works on two shift basis in which total available time is 16 hours. Out of the available time about 25% is expected to be wasted on break downs, material unavailability and quality related problems. The factory works for 5 days in a week. How many machines are required to fulfill the production requirements?

Question 8

Joule-Thompson coefficient for an ideal gas is _______.

Question 9

The lead time in material requirements planning is the time between

Question 10

Misrun is a casting defect which occurs due to

Question 11

Consider an ideal VCRS (Vapor compression refrigeration cycle), for which the enthalpy of refrigerant before and after the evaporator are 75 kJ/kg and 180 kJ/kg respectively. Determine the refrigerant flow for each ton of refrigeration required:

Question 12

A circular shaft subjected to torsion undergoes a twist of 1 ° in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G=0.8×106 Kg/cm2, then the radius of the shaft should be ___________.

Question 13

Speed of particle executing simple harmonic motion with amplitude 'A' is half of the maximum speed. At that instant, displacement of the particle is

Question 14

A series combination of two Carnot’s engines operates between the temperatures of and . If the engines produce equal amount of work, then the intermediate temperature is

Question 15

The function,
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