Concrete Technology Questions and Answers – Use of Sea Water for Mixing of Concrete

This set of Concrete Technology Questions and Answers focuses on “Use of Sea Water for Mixing of Concrete”.

1. What is the permissible limits for construction of chlorides in water for RCC work?
a) 200mg/l
b) 2000mg/l
c) 1000mg/l
d) 500mg/l
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2. What is the permissible limits for construction of chlorides in water for PCC work?
a) 200mg/l
b) 2000mg/l
c) 1000mg/l
d) 500mg/l
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3. What is the permissible limits for construction of sulphates in water?
a) 200mg/l
b) 2000mg/l
c) 1000mg/l
d) 500mg/l
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4. There is necessary to minimize the use of salt water in RCC.
a) True
b) False
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5. Presence of acid, alkali ___________
a) Increases the strength
b) Reduces the strength
c) Do effect the concrete
d) Depends upon the proportion
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6. What is the maximum limit (ppm) for chlorides in water?
a) 500
b) 1000
c) 2000
d) 1500
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7. What is the maximum limit (ppm) for SO3 in water?
a) 500
b) 1000
c) 2000
d) 1500
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8. What is the maximum limit (ppm) for turbidity in water?
a) 500
b) 1000
c) 2000
d) 1500
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9. What is the maximum limit (ppm) for Alkali Carbonates and Bicarbonates in the water?
a) 500
b) 1000
c) 2000
d) 1500
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Sanfoundry Global Education & Learning Series – Concrete Technology.

To practice all areas of Concrete Technology, here is complete set of 1000+ Multiple Choice Questions and Answers.