# Checking of Geometrical Parameters - Mechanical Engineering (MCQ) questions and answers

1)   Which method is used to test the straightness of an object?

a. Indicator method
b. Interference method
c. Wedge method
d. All of the above
 Answer  Explanation ANSWER: Wedge method Explanation: No explanation is available for this question!

2)   What is a least square line?

a. A line which has sum of errors minimum
b. A line which has sum of difference of errors minimum
c. A line which has sum of squares of errors minimum
d. None of the above
 Answer  Explanation ANSWER: A line which has sum of squares of errors minimum Explanation: No explanation is available for this question!

3)   Indicator method is used to test

a. straightness
b. squareness
c. flatness
d. all of the above
 Answer  Explanation ANSWER: squareness Explanation: No explanation is available for this question!

4)   The out of roundness δ for least square circle is given as

a. δ = δp - δv
b. δ = δp + δv
c. δ = δr
d. None of the above
 Answer  Explanation ANSWER: δ = δp + δv Explanation: No explanation is available for this question!

5)   Which error is observed due to lack of squareness when depth is measured using depth micrometer?

a. parallax error
b. cosine error
c. sine error
d. all of the above
 Answer  Explanation ANSWER: cosine error Explanation: No explanation is available for this question!

6)   Which type of circularity reference circle is shown below ?
Condition given out of roundness δ = δr

a. Minimum inscribed circle
b. Minimum circumscribed circle
c. Least square circle
d. Minimum zone circle
 Answer  Explanation ANSWER: Minimum zone circle Explanation: No explanation is available for this question!

7)   In the diagram shown below, what is the distance between A and B called as ?

b. Runout
d. None of the above
 Answer  Explanation ANSWER: Runout Explanation: No explanation is available for this question!

8)   What is/are the factor(s) causing runout?

a. Error of position
b. Error of bearings
c. Both a and b
d. None of the above
 Answer  Explanation ANSWER: Both a and b Explanation: No explanation is available for this question!

9)   What is error of circularity?

a. Distance between maximum inscribing circle and minimum circumscribing circle measured radially
b. Distance between maximum inscribing circle and minimum zone circle measured radially
c. Distance between least square circle and minimum zone circle measured radially
d. None of the above
 Answer  Explanation ANSWER: Distance between maximum inscribing circle and minimum circumscribing circle measured radially Explanation: No explanation is available for this question!

10)   Which of the following is tested for parallelism between trajectory and a plane?

a. plane is on a component which moves
b. plane is on a component which does not moves
c. both a. and b.
d. none of the above
 Answer  Explanation ANSWER: both a. and b. Explanation: No explanation is available for this question!