Top 550+ Solved Building Materials MCQ Questions Answer

a. Plastics are chemical resistant

b. Plastics are durable

c. Plastics are ductile

d. Plastics are excellent electric insulators

a. Radial shakes

b. Heart shakes

c. Wind cracks

d. Twisted fibres

a. Dressing

b. Calcination and roasting

c. Smelting

d. All the above

a. The plywoods do not split or crack due to changes in atmosphere

b. The commercial plywoods are available upto 150 cm wide and upto 300 cm long

c. The plywoods possess uniform tensile strength in all directions

d. All the above

a. Under burnt

b. Over burnt

c. Kutcha

d. None of these

a. Steel produced by open hearth process is milder than that obtained by the Bessemer process

b. Engineers prefer open hearth steel for structural purpose as it is more homogenous

c. Basic Bessemer process is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel

d. All the above

a. High temperature

b. Chemical action

c. Dampness

d. All the above

a. Becomes rigid when moulded at suitable pressure and temperature

b. At 127°C to 177°C permanently set and further application of heat does not soften it

c. Chars at 343°C

d. All the above

a. Lacquer paints, is alcohol

b. Cellulose paints is ethyl acetate

c. Oil paints, is naphtha

d. All the above

a. Knots

b. Rindgalls

c. Burls

d. None of these

a. Carbon bisulphide

b. Chloroform

c. Coal tar

d. All of these

a. 5 %

b. 10 %

c. 15 %

d. 20 %

a. Aluminium carbide

b. Boric acid

c. Silicon

d. All of these

a. Forms carbon dioxide

b. Carbon dioxide with carbon forms carbon mono-oxide

c. Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2

d. All the above

a. 2 grades

b. 4 grades

c. 8 grades

d. 10 grades