Q.1) The drier in an oil paint should not be more than –
A) 5%
B) 10%
C) 15%
D) 20%
Option (B)
Q.2) The best primer used for structural steel work is :
A) White Lead
B) Red Lead
C) Zinc Oxide
D) Iron Oxide
Option (B)
Q.3) The vehicle used in bronze paints is usually :
A) Linseed Oil
B) Naptha
C) Water
D) Nitro-Cellulose Lacquer
Option (D)
Q.4) The commonly used cement in cement paints is :
A) White Cement
B) Portland Cement
C) Alumina Cement
D) Rapid Hardening Cement
Option (A)
Q.5) The solvent used in cement paints :
A) Thinner
B) Turpentine
C) Water
D) Spirit
Option (C)
Q.6) Enamel paint is made by adding :
A) White Lead in Varnish
B) Bitumen in Varnish
C) White Lead in Lacquer
D) Zinc White in Spirit
Option (A)
Q.7) Excess of silica in the clay –
A) Makes the brick brittle and weak
B) Makes the brick crack and warp on drying
C) Changes the colour of the brick from red to yellow
D) Improves impermeability and durability of the brick
Option (A)
Q.8) Gneiss is chemically classified as –
A) Calcareous rock
B) Argillaceous rock
C) Silicious rock
D) None of the above
Option (C)
Q.9) A good building stone should have water absorption capacity not more than –
A) 5%
B) 10%
C) 15%
D) 25%
Option (A)
Q.10) The specific gravity of stone should not, in any case be less than –
A) 1
B) 1.5
C) 2
D) 2.5
Option (D)
Q.11) Efflorescence is caused if –
A) The alkaline salt is present in the bricks
B) The clay used for making bricks contain pyrite
C) The water used for pugging the clay contains gypsum
D) All of the above
Option (D)
Q.12) The indentation marks left on bricks during process of moulding, are known as :
A) Fillets
B) Frogs
C) Projections
D) Marks
Option (B)
Q.13) The compressive strength of second class bricks should not be less than –
A) 7.5 MN/m2
B) 9 MN/m2
C) 10.5 MN/m2
D) 12 MN/m2
Option (A)
Q.14) Rich or Fat lime –
A) Slakes rapidly with considerable evolution of heat
B) Takes very long time to develop adequate strength
C) Has high plasticity
D) All of these
Option (D)
Q.15) The advantage of adding pozzolana (or surkhi) to lime is to –
A) Reduce shrinkage
B) Increase resistance to cracking
C) Increase resistance to chemical attack
D) All of these
Option (D)
Q.16) The main constituent of Portland Cement is :
A) Lime
B) Alumina
C) Iron oxide
D) Alkalies
Option (A)
Q.17) The rapid hardening Portland cement has :
A) Lower heat of hydration
B) Higher heat of hydration
C) Lower shrinkage coefficient
D) None of the above
Option (B)
Q.18) The fineness of cement is tested by –
A) Air-Permeability Test
B) Le-chatelier’s Method
C) Vicat’s Apparatus
D) None of the above
Option (A)
Q.19) The expansion of cement should not exceed……….for any type of Portland Cement.
A) 5 mm
B) 10 mm
C) 15 mm
D) 20 mm
Option (B)
Q.20) The workability of cement concrete can be improved by –
A) Increasing the quantity of cement
B) Increasing the proportion of coarse aggregate
C) Increasing the quantity of sand
D) All of the above
Option (A)
