RCC STRUCTURES DESIGN QUIZ

The angle of internal friction of soil mass is the angle whose

Cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane to the normal pressure acting on the plane

None of these

Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane

Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane

TRUE ANSWER : ?
YOUR ANSWER : ?

The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called

Economic section

Balanced section

Critical section

All listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is

40°

45°

All listed here

30°

TRUE ANSWER : ?
YOUR ANSWER : ?

If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by

(5/6) (r²/1 + r⁴) M

(5/6) (r²/1 + r²) M

(5/6) (r/1 + r²) M

(5/6) (r²/1 + r³) M

TRUE ANSWER : ?
YOUR ANSWER : ?

In a pre-stressed beam carrying an external load W with a bent tendon is having angle of inclination ? and pre-stressed load P. The net downward load at the centre is

W - P cos θ

W - 2P sin θ

W - P sin θ

W - 2P cos θ

TRUE ANSWER : ?
YOUR ANSWER : ?

If the bearing capacity of soil is 10 tonnes/cm² and the projection of plain concrete footing from walls, is a cm, the depth D of footing is

D = 0.775 a²

D = 0.775 √a

D = 0.0775 a

D = 0.775 a

TRUE ANSWER : ?
YOUR ANSWER : ?

The transverse reinforcements provided at right angles to the main reinforcement

Distribute the load

All of these

Resist the temperature stresses

Resist the shrinkage stress

TRUE ANSWER : ?
YOUR ANSWER : ?

The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or

24 bar diameters

18 bar diameters

12 bar diameters

30 bar diameters

TRUE ANSWER : ?
YOUR ANSWER : ?

If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be

8hl/p

8hl/p²

8hp/l

8hp/l²

TRUE ANSWER : ?
YOUR ANSWER : ?

If the maximum bending moment of a simply supported slab is M Kg.cm, the effective depth of the slab is (where Q is M.R. factor)

√(M/Q)

√(M/100Q)

M/100Q

M/10√Q

TRUE ANSWER : ?
YOUR ANSWER : ?

↑