21 FEBRUARY 2021 CURRENT AFFAIRS QUIZ

If permissible working stresses in steel and concrete are respectively 1400 kg/cm² and 80 kg/cm² and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is

40 cm

38 cm

39 cm

37 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encased with the floor of a hall 12 meters by 7 meters, is spaced at 3 meters from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is

176 cm

233 cm

236 cm

300 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

The self-weight of the footing, is

Also considered for calculating the upward pressure on footing

Not considered for calculating the upward pressure on footing

Both (b) and (c)

Not considered for calculating the area of the footing

TRUE ANSWER : ?
YOUR ANSWER : ?

If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

σcAc + m σcAsc

All listed here

σc(A - Asc) + m σcAsc

σc[A + (m - 1)Asc]

TRUE ANSWER : ?
YOUR ANSWER : ?

The design of a retaining wall assumes that the retained earth

Is dry

All listed here

Is not cohesive

Is free from moisture

TRUE ANSWER : ?
YOUR ANSWER : ?

Enlarged head of a supporting column of a flat slab is technically known as

Top of the column

Capital

Supporting end of the column

Drop panel

TRUE ANSWER : ?
YOUR ANSWER : ?

A raft foundation is provided if its area exceeds the plan area of the building by

50 %

20 %

10 %

40 %

TRUE ANSWER : ?
YOUR ANSWER : ?

The zone in which transverse bending is likely to occur may be obtained by drawing a line from the faces of the column making an angle θ° with horizontal where θ° is

45°

None of these

30°

60°

TRUE ANSWER : ?
YOUR ANSWER : ?

The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon

Breadth of the rib

Overall thickness of the rib

All of the listed here

Centre to centre distance between T-beams

TRUE ANSWER : ?
YOUR ANSWER : ?

A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is

Less than 2

Less than 2.5

2.5

2

TRUE ANSWER : ?
YOUR ANSWER : ?

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