Concrete Technology and Design of Concrete Structures
As compared to ordinary portland cement, high alumina cement has

lower initial setting time but higher final setting time
higher initial and final setting times
lower initial and final setting times
higher initial setting time but lower final setting time

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Concrete Technology and Design of Concrete Structures
Examine the following statements :i) Factor of safety for steel should be based on its yield stress,ii) Factor of safety for steel should be based on its ultimate stress,iii) Factor of safety for concrete should be based on its yield stress,iv) Factor of safety for concrete should be based on its ultimate stress.The correct statements are

(i) and (iv)
(ii) and (iv)
(ii) and (iii)
(i) and (iii)

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Concrete Technology and Design of Concrete Structures
Assertion A : The load factor for live load is greater than that for dead load.Reason R : The live loads are more uncertain than dead loads.Select your answer based on the coding system given below :

A is true but R is false.
Both A and R are true and R is the correct explanation of A.
A is false but R is true.
Both A and R are true but R is not the correct explanation of A.

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