RCC Structures Design

This is an MCQ-based quiz on RCC Structures Design.

This includes the design of reinforced concrete structures, an introductory design course in civil engineering.

Start Quiz

The load stress of a section can be reduced by

Decreasing the lever arm Increasing the total perimeter of bars Replacing larger bars by greater number of small bars Replacing smaller bars by greater number of greater bars

The horizontal portion of a step in a stairs case, is known as

Rise Flight Winder Tread

An under-reinforced section means

Steel is provided at the underside only Steel provided is insufficient Steel provided on one face only Steel will yield first

The live load to be considered for an accessible roof, is

Nil 75 kg/m³ 150 kg/m² 200 kg/cm²

The live load to be considered for an inaccessible roof, is

Nil 75 kg/m² 150 kg/cm² 200 kg/m²

By over-reinforcing a beam, the moment of resistance can be increased not more than

10 % 15 % 20 % 25 %

In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed

10 mm 15 mm 20 mm 25 mm

A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm² and 300 kg/cm², the Safe load on the column, should not exceed

4,120 kg 41,200 kg 412,000 kg None of these

A flat slab is supported

On beams On columns On beams and columns On columns monolithically built with slab

If Sb, is the average bond stress on a bar of diameter ‘d’ subjected to maximum stress ‘t’, the length of the embedment ‘l’ is given by

l = dt/Sb l = dt/2Sb l = dt/3Sb l = dt/4Sb

If the diameter of the main reinforcement in the slab is 16 mm, what will be the solid for the main bars?

13 mm 16 mm 14 mm 15 mm

What should be the width of the ribbed slab between the two strips?

6 cm to 7.5 cm 10 cm to 12 cm 8 cm to 10 cm 12 cm to 15 cm

What is the maximum permissible size of aggregates to be used in casting the ribs of a slab?

5 mm 15 mm 10 mm 7.5 mm

An R.C.C. column is treated as short column if its slenderness ratio is less than ........