Building Material [1]
106) Which of the following statement is correct ?
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(a) The fat lime swells two to three times of its original volume during slaking.
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(b) The poor lime is of pure white colour.
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(c) The feebly hydraulic lime slakes sluggishly.
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(d) all of the above
107) The fuel generally used for burning limestone is
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(a) coal
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(b) charcoal
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(c) firewood
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(d) any one of these
108) During the process of burning limestone, clay forms
certain compound which
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(a) gives hydraulic lime
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(b) gives power of quick setting
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(c) does not allow to be dissolved in the outside water when used in damp situations
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(d) all of the above
109) The process of adding the required quantity of water
to quick lime in order to convert it into hydrated lime,
is known as
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(a) calcination
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(b) hydration
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(c) slaking
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(d) quenching
110) The advantage of adding pozzolana (or surkhi) to
lime is to
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(a) reduce shrinkage
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(b) increase resistance to cracking
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(c) increase resistance to chemical attack
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(d) all of the above
