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MCQs

Total Questions : 364 | Page 12 of 37 pages
Question 111. 9. Accurate centring of work mounted in an independent chuck can be determined by using a
  1.    Centre gauge
  2.    Height gauge
  3.    Dial indicator
  4.    Surface gauge
 Discuss Question
Answer: Option C. -> Dial indicator
Question 112. 2. To check the diameter of a twist drill with a micrometer, the measurement must be taken across the
  1.    Margins of the drill
  2.    Flutes of the drill
  3.    Cutting edges of the drill
  4.    Lips of the drill
 Discuss Question
Answer: Option A. -> Margins of the drill
Question 113. 3. Pick out the wrong statement about gauges for internal threads.
  1.    The Go screw plug gauge is made to the minimum metal limit and of full form and checks the virtual effective diameter. Any error in the pitch or flank angle of screw affects the effective diameter
  2.    The dimensions of Go and Not Go gauges correspond to maximum and minimum minor diameters.
  3.    Not Go screw plug gauge is made to the maximum effective diameter of the screw thread cleared at the root and crest.
  4.    The plain Go and Not Go gauges are used for checking the limits of the size of minor diameter.
 Discuss Question
Answer: Option B. -> The dimensions of Go and Not Go gauges correspond to maximum and minimum minor diameters.
Question 114. 9. Basic shaft and basic hole are those whose upper deviations and lower='deviation respectively are
  1.    + ye, ? ve
  2.    Zero, zero.
  3.    Minimum, minimum
  4.    Minimum, maximum
 Discuss Question
Answer: Option B. -> Zero, zero.
Question 115. 4. Expressing a dimension as 18.31% mm is the case of
  1.    Unilateral tolerance
  2.    Bilateral tolerance
  3.    Limiting dimensions
  4.    All of the above
 Discuss Question
Answer: Option A. -> Unilateral tolerance
Question 116. 5. In instrumentation a correction is
  1.    An error
  2.    The revision applied to the indicated value so that the final result obtained improves the worth of the result
  3.    Reading-error
  4.    Range of error-degree of correctness
 Discuss Question
Answer: Option B. -> The revision applied to the indicated value so that the final result obtained improves the worth of the result
Question 117. 6. Straight edges are used to measure
  1.    Straight length of parts
  2.    Flatness
  3.    Parallelism
  4.    Perpendicularity
 Discuss Question
Answer: Option B. -> Flatness
Question 118. 7. IS : 919 on limits and fits specifies following numbers of grades of fundamental tolerances, and fundamental deviations respectively
  1.    25, 18
  2.    25, 16
  3.    18, 22
  4.    18, 25
 Discuss Question
Answer: Option D. -> 18, 25
Question 119. 8. For general use the measuring tip of a comparator should be
  1.    Flat
  2.    Spherical
  3.    Conical
  4.    Concave
 Discuss Question
Answer: Option B. -> Spherical
Question 120. 0. The standard tolerance unit is equal to
  1.    0.45 (3-V5) + 0.001D
  2.    0.45 (3V5) + 0.001D
  3.    0.45 (3Arg) + 0.01D
  4.    0.45 (4To) + 0.01D
 Discuss Question
Answer: Option A. -> 0.45 (3-V5) + 0.001D

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