CONCRETE TECHNOLOGY AND DESIGN OF CONCRETE STRUCTURES QUIZ

forces of tension and compressions remain unchanged but lever arm changes with the moment

both forces of tension and compres-sion as well as lever arm change

forces of tension and compression change but lever arm remains unchanged

both forces of tension and compres-sion as well as lever arm remain unchanged

Live load + fraction of dead load

Dead load + live load

Dead load only

Dead load + fraction of live load

28 liters

30 liters

32 liters

34 liters

wholly parabolic

wholly rectangular

rectangular above neutral axis and parabolic below neutral axis

parabolic above neutral axis and rectangular below neutral axis

0.85 d

0.55 d

0.68 d

0.43 d

0.5%

0.4%

0.6%

0.3%

Elastic modulus of high tensile steel is nearly the same as that of mild steel

High tensile steel is cheaper than mild steel

Elastic modulus of high tensile steel is more than that of mild steel

Carbon percentage in high carbon steel is less than that in mild steel

either to decrease or to increase it

to keep it unchanged

to increase it

to decrease it

increase in both tensile strength and ductility

increase in tensile strength but decrease in ductility

decrease in both tensile strength and ductility

decrease in tensile strength but increase in ductility

two cantilevers

one cantilever

four cantilevers

three cantilevers