Top 150+ Solved Foundry Technology MCQ Questions Answer

a. aluminium and zinc

b. zinc and copper

c. copper, zinc and lead

d. none of the above

a. plasticity and adhesiveness

b. cohesiveness and permeability

c. permeability and plasticity

d. adhesiveness and cohesiveness

a. Somewhat smaller in size than the casting

c. Somewhat larger in size than the casting

d. Equal in size to the casting

a. Sound costings are produced

b. Inricate shapes can be cast

c. Close tolerances can be achieved

d. All of the above

a. pipe work

b. bends

c. drainage fittings

d. all of the above

b. 500 kg/cm2

c. 1.5 kg/cm2

d. 15 kg/cm2

e. 150 kg/cm2

a. low coke consumption

b. reduced silicon loss

c. reduced output silicon loss

d. all of the above

a. gas permeability

b. refractoriness

c. cohesiveness

d. all of the above

a. applying water to the mould around the edge of the pattern

b. shaking pattern to facilitate its with drawl from the mould

c. repairing and finishing of mould

d. none of the above

a. 625?C

b. 325?C

c. 525?C

d. 425?C

a. labour charges are reduced

b. core is not required

c. moulds are unsplit

d. all of the above

a. machining of castings

b. removal of castings from moulds

c. separation of sand and castings after pouring

d. all of the above

b. permeability remains unchanged

c. permeability decreases

d. permeability increases

a. reduced labour charges

b. reduced mould cost

c. dense, fine grained structure

d. all of the above

a. Pin holes

b. Slag holes

c. Gas holes

d. Blow holes