Engineering - Civil Enginnering

You Are Here :: Home > Civil Engineering > Concrete Technology & Design-General Questions

 
13.

According to Whitney's theory, depth of stress block for a balanced section of a concrete beam is limited to
where d is effective depth of beam[ES 2k]                        
A. 0.43 d B. 0.537 d
C. 0.68 d D. 0.85 d



14.

According to Whitney's theory, ultimate strain of concrete is assumed to be                        
A. 0.03% B. 0.10%
C. 0.30% D. 3%



15.

Admixtures which cause early setting, and hardening of concrete are called                        
A. workability admixtures B. accelerators
C. retarders D. air entraining agents




16.

Air entrainment in the concrete increases                        
A. workability B. strength
C. the effects of temperature variations D. the unit weight



17.

Approximate value of shrinkage strain in concrete, is                        
A. 0.003 B. 0.0003
C. 3e-005 D. 0.03



18.

As compared to ordinary portland cement, high alumina cement has                        
A. higher initial setting time but lower final setting time B. lower initial setting time but higher final setting time
C. higher initial and final setting times D. lower initial and final setting times



« prev

1

2

3

4

5

6

7

8

9

next »
 
 



© 2013 freshersindia.in ® | Copyrights | Terms & Conditions   Designed by Freshers India
Catch Us on