RCC STRUCTURES DESIGN QUIZ

A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is

WL/P

WL/4P

WL/3P

WL/2P

TRUE ANSWER : ?
YOUR ANSWER : ?

For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is

0.6

0.9

0.8

0.7

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YOUR ANSWER : ?

If p₁ and p₂ are mutually perpendicular principal stresses acting on a soil mass, the normal stress on any plane inclined at angle θ° to the principal plane carrying the principal stress p₁, is:

[(p₁ + p₂)/2] + [(p₁ - p₂)/2] sin 2θ

[(p₁ - p₂)/2] + [(p₁ + p₂)/2] sin 2θ

[(p₁ + p₂)/2] + [(p₁ - p₂)/2] cos 2θ

[(p₁ - p₂)/2] + [(p₁ + p₂)/2] cos 2θ

TRUE ANSWER : ?
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The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation.

m = 2800/3C

m = 1400/3C

m = 700/3C

m = 3500/3C

TRUE ANSWER : ?
YOUR ANSWER : ?

A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be

WL²/90

WL²/30

WL²/60

WL²/15

TRUE ANSWER : ?
YOUR ANSWER : ?

For stairs spanning horizontally, the minimum waist provided is

12 cm

6 cm

4 cm

8 cm

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YOUR ANSWER : ?

Spacing of stirrups in a rectangular beam, is

Increased at the centre of the beam

Kept constant throughout the length

Increased at the ends

Decreased towards the centre of the beam

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YOUR ANSWER : ?

The maximum shear stress (qmax) in a rectangular beam is

1.25 times the average

1.75 times the average

1.50 times the average

2.0 times the average

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YOUR ANSWER : ?

Distribution of shear intensity over a rectangular section of a beam, follows:

An elliptical curve

A parabolic curve

A circular curve

A straight line

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The number of treads in a flight is equal to

Risers in the flight

None of these

Risers minus one

Risers plus one

TRUE ANSWER : ?
YOUR ANSWER : ?

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