Top 150+ Solved Manufacturing Technology 1 MCQ Questions Answer
Q. Which of the following metal has a melting point of about 660oC and latent heat of fusion 92.7 cal/g?
a. aluminium
b. lead
c. magnesium
d. tin
Q. Gas-Fired burner is used in which of the following furnace?
a. induction furnace
b. reverberatory furnace
c. cupola furnace
d. crucible furnace
Q. What is inoculation of cast iron?
a. addition of sulphur alloys
b. addition of silicon alloys
c. addition of oxides
d. addition of parent metal’s ore
Q. Why is inoculation done certain times during melting of cast iron?
a. to enhance its mechanical properties
b. to reduce the liquid shrinkage of metal
c. to enhance the surface finishing
d. all of the mentioned
Q. Which of the following is/are not used to melt material in casting(foundry) industries?
a. cupola furnace
b. induction furnace
c. ladle furnace
d. crucible furnace
Q. Which type of sand is used in shell moulding?
a. black sand
b. wet and fine sand
c. dry and fine sand
d. any of the sand
Q. Which is the most widely used resin in shell moulding?
a. phenol formaldehyde
b. ethanol formaldehyde
c. phenol
d. ethanol
Q. Which of the following statement is true?
a. the size of the casting can be adjustable
b. the size of the casting is not limited
c. the size of the casting obtained by shell moulding is limited
d. none of the mentioned
Q. Cylinder and cylinder heads for air cooled IC engines are casted using which technique?
a. precision investment casting
b. shell moulding
c. permanent mould casting
d. die casting
Q. In precision investment casting, to make the mould the prepared pattern is dipped into a slurry. From which material is this slurry is made up of?
a. ethyl silicate
b. sodium silicate
c. both ethyl and sodium silicate
d. neither ethyl nor sodium silicate
Q. Another name of Gravity Die Casting is?
a. centrifugal casting
b. permanent mould casting
c. precision investment casting
d. hot chamber process
Q. In PIC, any wax remnants are dissolved with the help of hot vapors of a solvent. Which solvent is used for this purpose?
a. ethanol
b. chlorofluorocarbon
c. trichloroethylene
d. any of the above
Q. Which of the following is a limitation of die casting, but is overcome in vacuum die casting?
a. the air left in the cavity when the die is closed
b. the moisture left in the cavity when the die is closed
c. the air left in the cavity when the die is open
d. the moisture left in the cavity when the die is open
Q. The casting process that does not require a core to produce a hollow casting is?
a. shell moulding
b. hot-chamber die casting
c. permanent mould casting
d. true centrifugal casting