Lakshya Education MCQs

Question: Shrinkage allowance on pattern is provided to compensate for shrinkage when the
A.Metal changes from liquid state to solid state at freezing temperature
B.Solid phase temperature drops from freezing temperature to the room temperature
C.Liquid metal temperature drops from pouring temperature to room temperature
D.Liquid metal temperature drops from pouring temperature to freezing temperature
Answer: Option B

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More Questions on This Topic :

Question 1. Pick out the wrong statement.
  1.    Annealing twins are not observed in pure aluminium, because it has higher strain energy
  2.    Load during cold rolling can be lowered by the application of front tension
  3.    Very fine grain structure is desirable for high temperature creep application of materials
  4.    Soft magnetic materials are those which have less area within the hysterisis loop
Answer: Option C
Question 2. Pick the odd man out.
  1.    Austempering
  2.    Martempering
  3.    Cyniding
  4.    Parkerizing
Answer: Option D
Question 3. Piezoelectric is a material
  1.    Whose properties is midway between the constituent materials
  2.    Which gets polarised, when stressed
  3.    In which magnetising force reduces when current flowing through it is in-cresed
  4.    Which changes dimensions due to applied field
Answer: Option B
Question 4. Out of the following, the alloy which has equal percentage of constituents, is
  1.    White metal
  2.    Gun metal
  3.    Duralumin
  4.    Constanton
Answer: Option D
Question 5. Pearlite comprises of
  1.    87% cementite & 13% Fe
  2.    87% ferrite & 13% cementite
  3.    93.33% ferrite & 6.67% C
  4.    87% ferrite & 13% C
Answer: Option B
Question 6. Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
  1.    Conduction
  2.    Convection
  3.    Both A & B
  4.    Radiation
Answer: Option D

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