Top 550+ Solved Building Materials MCQ Questions Answer
Q. The plywood
a. Has good strength along the panel only
b. Can be spilt in the plane of the panel
c. Has greater impact resistance to blows than ordinary wood
d. Cannot be bent more easily than ordinary wood of same thickness
Q. Pick up the correct statement from the following:
a. The phenol is carbolic acid
b. The phenol is either extracted from coal-tar or prepared from benzene
c. Phenol reacts with formaldehyde, to form phenol formaldehyde resin
d. All the above
Q. Advantage of a clamp compared to a kiln for burning bricks is that
a. It takes less time for burning
b. It gives more output of first class bricks
c. It has less initial cost
d. It is suitable when bricks are required in large numbers
Q. Pick up the correct statement from the following:
a. Solder material is an alloy which melts at a temperature above 400°C
b. Brazing is done at temperature above 600°C to 1100°C
c. Brazing joint is stronger than the solder joint
d. All the above
Q. Assertion A : Pure lime takes a long time to develop adequate strength.Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below:
a. Both A and R is true and R is correct explanation of A
b. Both A and R is true and R is not a correct explanation of A
c. A is true but R is false
d. A is false but R is true
Q. During pudding
a. Molten metal is kept clear of the fuel
b. Carbon is converted into carbonic acid gas
c. Silicon forms a slag
d. All the above
Q. Early attainment of strength in rapid hardening cement is mainly due to
a. Gypsum
b. Finer grinding
c. Tri-calcium silicate
d. Tri-calcium aluminate
Q. Pick up the correct statement from the following:
a. Quick lime is obtained by burning pure lime stone
b. Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%
c. Poor lime is obtained by burning lime stone containing impurities more than 5%
d. All the above
Q. Which of the following cements contains maximum percentage of dicalcium silicate?
a. Ordinary Portland cement
b. Low heat cement
c. Rapid hardening cement
d. Sulphate resisting cement
Q. Pick up the incorrect statement from the following:
a. Hydraulic lime is generally obtained by burning kankar
b. Hydraulic lime sets slowly as compared to fat lime
c. Hydraulic lime is generally used in lime mortar
d. None of these
Q. Pick up the correct statement from the following:
a. Roasting is not necessary if iron ore is an oxide
b. Impurities float on the molten iron as slag
c. The slag contains lime about 45%
d. All the above
Q. For obtaining vinyl chloride acetate, the method used, is
a. Addition polymerization
b. Condensation polymerization
c. Co-polymerization
d. None of these
Q. Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
a. 5 kg/mm2
b. 9 kg/mm2
c. 13 kg/mm2
d. 15 kg/mm2