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Friday, July 7, 2017

GATE Manufacturing Engineering Previous Year Questions: Metrology and Inspection Set-1


Gate Manufacturing Engineering Previous Year Questions [1997-2017]

Metrology and Inspection: SET-1

Q1. In an engineering drawing one finds the designation of 20G7f8, the position of tolerance of the hole is indicated by [ME: 1988]
A. Letter G
B. Letter f
C. Number 7
D. Number 8
View Answer
Q2. Appropriate instrument to check the flatness of slip gauge is [ME: 1989]
A. dial indicator
B. pneumatic comparator
C. optical interferometer
D. tool makers microscope with projection facility
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Q3. Two shaft A and B have their diameters specified as 100 ± 0.1 mm and 0.1 ± 0.0001 mm respectively, which of the following statement is/are true [ME: 1992]
A. Tolerance in the dimension is greater than shaft A
B. The relative error in the dimension is greater in shaft A
C. Tolerance in the dimension is greater in shaft B
D. The relative error in the dimension is same for shaft A and shaft B
View Answer
Q4. The fit on a hole-shaft pair system is specified as H7-h6, the type of fit is [ME: 1996]
A. Clearance fit
B. Running fit(Sliding fit)
C. Push fit(transition fit)
D. Force fit(interference fit)
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Q5. The iron carbon diagram and the TTT curves are determined under [ME: 1996]
A. Equilibrium and non-equilibrium conditions respectively
B. Non-Equilibrium and equilibrium conditions respectively
C. Equilibrium conditions for both
D. Non-equilibrium conditions for both
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Q6. Allowance in limits and fits refers to [ME: 2001]
A. Maximum clearance between the shaft and hole
B. Minimum clearance between shaft and hole
C. Difference between the maximum and minimum size of hole
D. Difference between the maximum and minimum size of shaft
View Answer
Q7. The dimensional limits on a shaft of 25h7 are [ME: 2003]
A. 25.000, 25.021 mm
B. 25.000, 24.979 mm
C. 25.000, 25.007 mm
D. 25.000, 24.993 mm
View Answer
Q8. In order to have interference fit, it is essential that the lower limit of the shaft should be [ME: 2005]
A. greater than the upper limit of the hole
B. lesser than the upper limit of hole
C. greater than the lower limit of the hole
D. lesser than the lower limit of the hole
View Answer
Q9. When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degree of freedom that are restricted is [ME: 2005]
A. 7
B. 8
C. 9
D. 10
View Answer
Q10. A ring gauge is used to measure [ME: 2006]
A. outside diameter but not roundness
B. roundness but not outside diameter
C. both outside diameter and roundness
D. only external threads
View Answer

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