Q1. Bitumen is generally obtained from
(A) Organic material
(B) Synthetic material
(C) Petroleum product
(D) Coal
Q2. The main constituent which imparts hydraulicity to hydraulic lime is
(A) Calcium oxide
(B) Silica
(C) Clay
(D) Water
Q3. Calcination of iron ores is done
(A) To remove moisture
(B) To remove carbonic acid
(C) By roasting in heaps
(D) All the above
Q4. Which of the following cements is suitable for use in massive concrete structures such as large dams?
(A) Ordinary Portland cement
(B) Low heat cement
(C) Rapid hardening cement
(D) Sulphate resisting cement
Q5. The commonly used thinner in oil paints, is
(A) Naphtha
(B) Turpentine
(C) Both (a) and (b)
(D) None the these
Q6. Minimum thickness of wall where single Flemish bond can be used is
(A) Half brick thick
(B) One brick thick
(C) One and a half bricks thick
(D) Two bricks thick
Q7. The pigment used in paints for corrosive resistance, is
(A) White lead
(B) Ferrous oxide
(C) Zinc white
(D) Red lead
Q8. Slate is formed by metamorphic action on
(A) Shale
(B) Lime stone
(C) Sand stone
(D) Granite
Q9. Sea sand used in structures causes
(A) Dampness
(B) Efflorescence
(C) Disintegration
(D) All of these
Q10. The trunk of tree left after cutting all the branches is known as
(A) Log
(B) Batten
(C) Plank
(D) Baulk