Real time Building Materials and Construction Engineering Multiple choice Questions and Answers

51.    The process of mixing clay, water and other ingredients to make brick is known as
a)    kneading
b)    moulding
c)    pugging
d)    drying
Ans: a

52.    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
Ans: c

53.   The internal size of mould used in brick preparation is
a)    equal to the size of a fully burnt brick
b)    smaller than the size of a fully burnt brick
c)    greater than the size of a fully burnt brick
d)    none of the above
Ans: c

54.    Pug mill is used for
a)    preparation of clay
b)    moulding of clay
c)    drying of bricks
d)    burning of bricks
Ans: a

55.    Which of the following bricks are used for lining of furnaces ?
a)    overburnt bricks
b)    underburnt bricks
c)    refractory bricks
d)    first class bricks
Ans: c

56.    The frog of the brick in a brick masonry is generally kept on
a)    bottom face
b)    top face
c)    shorter side
d)    longer side
Ans: b

57.    Number of bricks required for one cubic metre of brick masonry is
a)    400
b)    450
c)    500
d)    550
Ans: c

58.    Glazing is used to make earthenware
a)    hard
b)    soft
c)    porous
d)    impervious
Ans: d

59.    Quick lime is
a)    calcium carbonate
b)    calcium oxide
c)    calcium hydroxide
d)    none of the above
Ans: b

60.    Quick lime is
i)    slow in setting
ii)   rapid in slacking
iii) good in strength The correct answer is
a)    only (i)
b)    only (ii)
c)    both (i) and (ii)
d)    both (ii) and (iii)
Ans: c

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