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GATE ME 2022: Manufacturing
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Question 1
Feeler gauges are used for measuring the____.
Question 2
In electrochemical machining process which uses the principle of electrolysis for machining operation is used for having intricate design in various industries. It works on which of the following law.
Question 3
In an orthogonal cutting test with a tool of rake angle 10°, the following observations were made:
Chip thickness ratio = 0.5
Horizontal component of cutting force = 1200 N
Vertical component of cutting force = 1800 N
From merchant’s theory, calculate the coefficient of friction at the chip tool interface.
Question 4
Two cutting tools with tool life equations given below are being compared:
Tool 1:
Tool 2:
Where V is cutting speed in m/minute and T is tool life in minutes. The breakeven cutting speed beyond which Tool 2 will have a higher tool life is ________ m/minute.
Tool 1:
Tool 2:
Where V is cutting speed in m/minute and T is tool life in minutes. The breakeven cutting speed beyond which Tool 2 will have a higher tool life is ________ m/minute.
Question 5
A casting of size 100 x 50 x 50 cm was filled by top gates with manometric height in pouring basin to be 25 cm. find the time (in sec) to fill the casting. The area of gate is 5 square cm.
Question 6
The melting efficiency in case of arc welding of steel with a potential of 20 V and current of 200 A is to be calculated. The travel speed is 5 mm/s and the cross-sectional area fo the joint is 20 mm2. Heat required to melt steel may be taken as 10 J/mm3 and the heat transfer efficiency as 0.85. The melting efficiency will be ______.
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Jul 2ESE & GATE ME
