Surface Finish and Geometrical Tolerance 15

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Subject: Surface Finish and Geometrical Tolerance

ITI Trades MCQ: Fitter, Turner, Machinist

 Part 15: List for questions and answers of Surface Finish and Geometrical Tolerance                


Q1. Which one of the following processes is used for removing scratches from the previous operation

a) Enamelling

b) Painting

c) Oxidation

d) Polishing


Q2. A block level can be used for

a) Checking vertical alignment only

b) Checking horizontal alignment only

c) Checking angular alignment only

d) Checking vertical and horizontal alignment


Q3. Which one of the following statements is NOT correct ?

a) Lay is the direction of the predominant surface pattern, ordinarily determined by the production method used.

b) Normal profile is the contour of a surface in a plane perpendicular to the surface, unless some other angle is specified

c) One micrometer is equal to one thousandth of a millimeter.

d) Flaws are iregularities, which occour at one place or at relatively frequent or widely varying intervals in a surface


Q4. One micro-inch is equal to

a) One-tenth of an inch

b) One-hundredth of an inch   

c) One thousandth of an inch

d) One millionth of an inch


Q5. The stylus of the surface indicator is made of

a) Mild steel

b) High carbon steel

c) High speed steel

d) Diamond


Q6. The irregularities in the surface texture due to the inherent action of the production process is knownas

a) Secondary texture

b) Roughness

c) Waviness

d) Waviness spacing


Q7. Which one of the following indicates the Ra value?

a) 0.0001 mm

b) 0.00001 mm

c) 0.000001 mm

d) 0.0000001 mm


Q8. The pattern of the work surface caused by the movement of the cutting tool is known As

a) Surface texture

b) Roughness

c) Roughness spacing

d) Waviness


Q9. The component of the surface texture upon which the roughness is superimposed is known as

a) Surface roughness

b) Surface texture

c) Lay

d) Waviness


Q10. It must be remembered that one micron is equal to

a) 10 micro-inch

b) 20 micro-inch

c) 25 micro-inch

d) 40 micro-inch


Q11.The value of one micron is

a) 0.00001 mm

b) 0.0001 mm

c) 0.001 mm

d) 0.01 mm


Q12. Which among the following terms is used for irregularities or imperfections that occur in isolating places in the surface without pattern ?

a) Lay

b) Flaw

c) Roughness

d) Waviness


Q13. The value of one micro-inch is

a) 0.000001″

b) 0.00001″

c) 0.0001″

d) 0.001″


Q14.The direction of finishing is known as

a) Flaw

b) Lay

c) Waviness

d) Roughness


Q15.For general purpose the roughness values are graded into 12 grades designed as

a) N-0 to N-12

b) 0 to 12

c) N-1 to N-12

d) 1 to 12


Part 15: List for questions and answers of Surface Finish and Geometrical Tolerance                


Q1. Answer: d


Q2. Answer: d


Q3. Answer: b


Q4. Answer: d


Q5. Answer: d


Q6. Answer: b


Q7. Answer: c


Q8. Answer: a


Q9. Answer: d


Q10. Answer: d


Q11. Answer: c


Q12. Answer: b


Q13. Answer: a


Q14. Answer: b


Q15. Answer: c