CONCRETE TECHNOLOGY AND DESIGN OF CONCRETE STRUCTURES QUIZ

3 days

14 days

7 days

24 to 48 hours

To provide adequate bond stress

To resist tensile stresses

All of these

To impart initial compressive stress in concrete

20 m

30 m

45 m

60 m

effective depth of slab from periphery of column/drop panel

at the drop panel of slab

d/2 from periphery of column/capital/ drop panel

at the periphery of column

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 remain unchanged

forces of tension and compression change but lever arm remains unchanged

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

0.03

0.0003

3.0E-5

0.003

12 mm

8 mm

6 mm

16 mm

compressive strength

split tensile strength

flexural tensile strength

direct tensile strength

Live load + fraction of dead load

Dead load only

Dead load + fraction of live load

Dead load + live load

40%

60%

50%

70 %