100 Best Building Materials- Cement MCQ
Q9). Use of coarser cement particles leads to:
a).Low durability
b).Higher strength
c).Low consistency
d).Higher soundness
Correct Answer:
Low durability
Explanation:
Q10). Green cement is:
a).Green coloured cement
b).Cement mixed with plant products
c).Cement mixed with recycled materials
d).Cement mixed with green algae
Correct Answer:
Cement mixed with recycled materials
Explanation:
Q11). What is the depth the needle in Vicat apparatus should penetrate into the cement paste in consistency test?
a).33-35 cm from bottom of the mould
b).33-35 mm from top of the mould
c).33-35 cm from top of the mould
d).33-35 mm from bottom of the mould
Correct Answer:
33-35 mm from top of the mould
Explanation:
Q12). For quality control of Portland cement, the test essentially done is
a).setting time
b).soundness
c).consistency
d).all the above.
Correct Answer:
all the above.
Explanation:
Q13). If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,
a).0.2
b).0.25
c).0.3
d).0.35
Correct Answer:
0.25
Explanation:
Q14). Under normal conditions using an ordinary cement, the period of removal of the form work, is :
a).7 days for beam soffits
b).14 days for bottom slabs of spans 4.6 m and more
c).21 days for bottom beams over 6 m span
d).all the above.
Correct Answer:
all the above.
Explanation:
Q15). For given water content, workability decreases if the concrete aggregates contain an excess of
a).thin particles
b).flat particles
c).elongated particles
d).all the above.
Correct Answer:
all the above.
Explanation:
Q16). M10 grade of concrete approximates
a).1 : 3 : 6 mix
b).1 : 1 : 2 mix
c).1 : 2 : 4 mix
d).1 : 1.5 : 3 mix
Correct Answer:
1 : 3 : 6 mix
Explanation: