MCQ 1 Which of the following has more fire resisting characteristics?

(A) Marble (B) Lime stone (C) Compact sand stone (D) Granite

MCQ 2 Due to attack of dry rot, the timber

(A) Cracks (B) Shrinks (C) Reduces to powder (D) None of these

MCQ 3 The constituent of cement which is responsible for all the undesirable properties of cement is

(A) Di-calcium silicate (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

MCQ 4 For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of

(A) 1:2 (B) 1:3 (C) 1:4 (D) 1:6

MCQ 15 The basic purpose of a retarder in concrete is

(A) To increase the initial setting time of cement paste in concrete (B) To decrease the initial setting time of cement paste in concrete (C) To render the concrete more water tight (D) To improve the workability of concrete mix

MCQ 5 Clay and silt content in a good brick earth must be at least

(A) 50 % (B) 40 % (C) 30 % (D) 25 %

MCQ 6 The stretcher bond in brick masonry can be used only when the thickness of wall is

(A) 90 mm (B) 180 mm (C) 190 mm (D) 280 mm

MCQ 14 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 of the above

MCQ 7 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

MCQ 8 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

MCQ 13 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

MCQ 9 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 of the above

MCQ 10 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

MCQ 11 Quick lime

(A) Generates heat when added to water (B) Reacts with carbon dioxide (C) May be used for white-washing (D) All of the above

MCQ 12 A mortar joint in masonry which is normal to the face of wall is known as

(A) Bed joint (B) Wall joint (C) Cross joint (D) Bonded joint