100 Best Building Materials- Lime MCQ
Q9). Fat lime is also called _________
a).Water lime
b).Pure lime
c).Impure lime
d).Lean lime
Correct Answer:
Pure lime
Explanation:
Q10). Poor lime contains more than ________ of clay.
a).0.05
b).0.1
c).0.2
d).0.3
Correct Answer:
0.3
Explanation:
Q11). Percentage of impurities in limestones should not exceed ________ for preparing fat lime.
a).0.05
b).0.08
c).0.1
d).0.15
Correct Answer:
0.05
Explanation:
Q12). Clay content in feebly hydraulic lime is about ________
a).2-4%
b).5-10%
c).11-20%
d).21-30%
Correct Answer:
5-10%
Explanation:
Q13). Which of the following is not true about hydraulic lime?
a).Hydraulic lime consists of clay and some amount of ferrous oxide
b).Hydraulic lime can set under water
c).It has a perfectly white colour
d).It is also known as water lime
Correct Answer:
It has a perfectly white colour
Explanation:
Q14). Pure limestones are indicated by _________ colour.
a).Brown
b).Blue
c).Grey
d).White
Correct Answer:
White
Explanation:
Q15). Time taken by hydraulic lime to slake is about __________
a).3-4 hours
b).7-10 hours
c).12-48 hours
d).60-65 hours
Correct Answer:
12-48 hours
Explanation:
Q16). Which of the following statements about kankar is false?
a).It is used to manufacture natural hydraulic lime
b).It is available in nodular and block form
c).Kankar in nodular form can withstand heat without disintegration
d).It is a pure limestone
Correct Answer:
It is a pure limestone
Explanation: