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MCQs

Total Questions : 364 | Page 22 of 37 pages
Question 211. 1. Profilometer is an instrument used to measure
  1.    Gear involute
  2.    Thread profile
  3.    Taper
  4.    Surface roughness
 Discuss Question
Answer: Option D. -> Surface roughness
Question 212. 2. The value of a set of data at which the greatest number of cases is concentrated is called
  1.    Mean
  2.    Mode.
  3.    Range
  4.    Standard deviation
 Discuss Question
Answer: Option B. -> Mode.
Question 213. 3. If the correctness of profile of a thread is to be checked, which instrument would you choose
  1.    Bench micrometer
  2.    Optical projector.
  3.    Sine bar
  4.    Telescopic gauge
 Discuss Question
Answer: Option B. -> Optical projector.
Question 214. 4. The more sensitive instrument
  1.    First oscillates more
  2.    Oscillates more slowly
  3.    Has no oscillations
  4.    Is never stable
 Discuss Question
Answer: Option B. -> Oscillates more slowly
Question 215. 5. Frequency of oscillation of an instrument indicating device is a function of
  1.    Mass
  2.    Damping
  3.    Sensitivity
  4.    Both damping and sensitivity
 Discuss Question
Answer: Option D. -> Both damping and sensitivity
Question 216. 6. The lost motion of the spindle in micrometer screw gauge when the rotation of the thimble is changed in direction is referred to as
  1.    Wear
  2.    Least count
  3.    Total error
  4.    Backlash
 Discuss Question
Answer: Option D. -> Backlash
Question 217. 7. Stick micrometers are used for measuring
  1.    Depth of holes
  2.    Longer internal lengths
  3.    Longer external lengths
  4.    Height of parts
 Discuss Question
Answer: Option B. -> Longer internal lengths
Question 218. 8. All the working surfaces and the cylindrical surfaces of the rollers of sine bar have a surface finish of the order of
  1.    0.2. micron
  2.    0.5 micron
  3.    1 micron
  4.    5 micron
 Discuss Question
Answer: Option A. -> 0.2. micron
Question 219. 9. The effect of errors in spacing of the rollers, or height of slip gauge combination is a function of the
  1.    Sin 0
  2.    Cos 0
  3.    Tan 0
  4.    Cosec 0
 Discuss Question
Answer: Option C. -> Tan 0
Question 220. 3. If 0 is the included angle of a screw thread then change in simple effective diameter due to change in angle error is proportional to
  1.    Tan
  2.    Cosec 0.
  3.    Cos 0
  4.    Sec 0
 Discuss Question
Answer: Option B. -> Cosec 0.

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