RCC Structures Design MCQ Questions & Answers

71

The load stress of a section can be reduced by

A) Decreasing the lever arm B) Increasing the total perimeter of bars C) Replacing larger bars by greater number of small bars D) Replacing smaller bars by greater number of greater bars

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

72

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

A) Rise B) Flight C) Winder D) Tread

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

73

An under-reinforced section means

A) Steel is provided at the underside only B) Steel provided is insufficient C) Steel provided on one face only D) Steel will yield first

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

74

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

A) Nil B) 75 kg/m³ C) 150 kg/m² D) 200 kg/cm²

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

75

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

A) Nil B) 75 kg/m² C) 150 kg/cm² D) 200 kg/m²

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

76

The Young's modulus of elasticity of steel, is

A) 150 KN/mm² B) 200 KN/mm² C) 250 KN/mm² D) 275 KN/mm²

Discuss

Answer & Solution

Answer: Option B

Solution:

The maximum value is 275 KN/mm² and used for 200 KN/mm².

77

If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is

A) $${\text{D}} = \frac{{{\text{W}}\left( {{\text{a}} - {\text{b}}} \right)}}{{4{{\text{a}}^2}{\text{bq}}}}$$ B) $${\text{D}} = \frac{{{\text{W}}\left( {{{\text{a}}^2} - {{\text{b}}^2}} \right)}}{{4{{\text{a}}^2}{\text{bq}}}}$$ C) $${\text{D}} = \frac{{{\text{W}}\left( {{{\text{a}}^2} - {{\text{b}}^2}} \right)}}{{8{{\text{a}}^2}{\text{bq}}}}$$ D) $${\text{D}} = \frac{{{\text{W}}\left( {{{\text{a}}^2} - {{\text{b}}^2}} \right)}}{{4{\text{abq}}}}$$

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

78

In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength

A) 100 kg/cm² B) 200 kg/cm² C) 300 kg/cm² D) 400 kg/cm²

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

79

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

A) 1.25 times the average B) 1.50 times the average C) 1.75 times the average D) 2.0 times the average

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

80

A pre-stressed concrete member

A) Is made of concrete B) Is made of reinforced concrete C) Is stressed after casting D) Possesses internal stresses

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

RCC Structures Design MCQ Questions & Answers | Civil Engineering