Metrology and Surface Engineering Mid - I, September - 2014

1.Linear measurement(s) is / are ___________.
  • Length
  • height
  • thickness
  • all the above
Answer: D
2.In _________ fit, in this assembly there is No Space between the parts
  • Clearance
  • transition
  • interference
  • none of the above
Answer: B
3.In ___________ tolerance, the tolerance is specified above and below the nominal diameter.
  • unilateral
  • bilateral
  • both A and B
  • none of the above
Answer: B
4.Depending on the type of instruments used, the basic method(s) are for determining distance:
  • Direct
  • Indirect
  • Electronic
  • all the above
Answer: D
5.The least count of the vernier calipers is _________ mm.
  • 0.01
  • 0.02
  • 0.002
  • 0.001
Answer: B
6.___________ are used to angle of work piece.
  • Angle slip gauges
  • micrometers
  • vernier height gauge
  • none of the above
Answer: A
7.__________________ is a measure of the finely spaced surface irregularities.
  • Surface roughness
  • roughness
  • waviness
  • all the above
Answer: D
8.The following instrument is used to find the surface roughness of any surface of the workpiece.
  • Tlaysurf
  • profilometer
  • micro interferometer
  • all the above
Answer: D
9._______________ is used with a monochromatic light to determine the flatness of other optical surfaces by interference.
  • Optical flat
  • auto collimator
  • surface plate
  • straight edge
Answer: A
10.________________ is a phenomenon in which two waves superpose to form a resultant wave of greater or lower amplitude.
  • interference
  • transition
  • intersection
  • none of the above
Answer: A
11.The size obtained through measurement with permissible error is ________________.
Answer: Actual Size
12.___________ is the magnitude of output signal of measuring instrument times increase to make it more readable.
Answer: Magnification
13.The difference between the maximum and minimum sizes (limits) is known as the ______________.
Answer: Tolerance
14._________ is the process of sliding two blocks or slip gauges together so that their faces lightly bond.
Answer: Wringing
15.Bevel Protractor is used to find the _____________ of work piece.
Answer: Angles and tapers
16.____________________ are used for precise 3 Dimensional measurements of components.
Answer: Measuring microscopes or Tool Maker Microscopes
17.A ____________________ is a device that narrows a beam of particles or waves.
Answer: collimator
18.A _________________________ is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen.
Answer: projector or image projector
19.____________________ is a family of techniques in which waves, usually electromagnetic, are superimposed in order to extract information about the waves.
Answer: Interferometer
20.Waviness is the measurement of the more widely spaced component of _________________.
Answer: Surface texture or surface finish or surface roughness