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20th July 2014, 10:31 AM
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| Re: Junior Engineer Mechanical sample question papers
As per your request here I am sharing the Junior Engineer Mechanical sample question paper: 7 In a machining operation, doubling the cutting speed reduces the tool life to 1/8 of the original value. The exponent n in Taylor A) 1/8 B) 1/4 C) 1/3 D) 1/2 Answer : (C) 8 In a rolling process, sheet of 25 mm thickness is rolled to 20 mm thickness. Roll is of diameter 600 mm and it rotates at 100 rpm. The roll strip contact length will be A) 5 mm B) 39 mm C) 78 mm D) 120 mm Answer : (A) 9 A soldering operation was work-sampled over two days (16 hours) during which an employee soldered 108 joints. Actual working time was 90% of the total time and the performance rating was estimated to be 120 percent. If the contract provides allowance of 20 percent of the total time available, the standard time for the operation would be A) 8 min B) 8.9 min C) 10 min D) 12 min Answer : (D)       |