Category: Design of Concrete Structures

A. time of transit
B. ‘vater-cement ratio
C. the air in the mix
D. size of aggregate

A. 24 to 48 hours
B. 3 days
C. 7 days
D. 14 days

A. increases with increase in diameter of bar
B. decreases with increase in diameter of bar
C. does not depend on diameter of bar
D. none of the above

A. compressive everywhere
B. tensile everywhere
C. partly compressive and partly tensile
D. zero

A. Minimum cross sectional area of longitudinal reinforcement in a column is 0.8%
B. Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm
C. Reinforcing bars in a column should not be less than 12 mm in diameter
D. The number of longitudinal bars provided in a circular column should not be less than four

A. remains constant
B. increases with richer mixes
C. decreases with richer mixes
D. none of the above

A. segregation
B. bleeding
C. bulking
D. creep

A. Long line method
B. Freyssinet system
C. Magnel-Blaton system
D. Lee-Macall system

A. L-shaped wall
B. T-shaped wall
C. counterfort type
D. all of the above

A. gypsum
B. calcium chloride
C. sodium silicate
D. all of the above