Category: Design of Concrete Structures

A. 2.0 to 3.5
B. 3.5 to 5.0
C. 5.0 to 7.0
D. 6.0 to 8.5

A. 28 liters
B. 30 liters
C. 32 liters
D. 34 liters

A. 2 %
B. 4%
C. 6%
D. 10%

A. 3.5 m
B. 4 m
C. 4.5 m
D. 5 m

A. ±5% of average
B. ± 10% of average
C. ± 15% of average
D. ±20% of average

A. 150 x150 x500 mm
B. 100 x100 x700 mm
C. 150 x150 x700 mm
D. 100 x100 x500 mm

A. 0.37 fy
B. 0.57 fy
C. 0.67 fy
D. 0.87 fy

where fy is the characteristic yield strength of steel

A. only in post-tensioned beams
B. only in pretensioned beams
C. in both post-tensioned and preten-sioned beams
D. none of the above

A. is always less than 1
B. is always greater than 1
C. can be more than 1
D. can be less than 1

A. workability
B. strength
C. the effects of temperature variations
D. the unit weight