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MCQOPTIONS
This section includes 5814 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 5101. |
With usual notations the depth of the neutral axis of a balanced section, is given by |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-10-1.png"> |
| B. | t/mc = n/(d-n) |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-10-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-10-4.png"> |
| Answer» E. | |
| 5102. |
If the ratio of the span to the overall depth does not exceed 10, the stiffness of the beam will ordinarily be satisfactory in case of a |
| A. | simply supported beam |
| B. | continuous beam |
| C. | cantilever beam |
| D. | none of these. |
| Answer» D. none of these. | |
| 5103. |
Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to |
| A. | shear force |
| B. | area of the section |
| C. | distance of the C.G. of the area from its neutral axis |
| D. | moment of the beam section about its neutral axis |
| E. | width of the beam. |
| Answer» E. width of the beam. | |
| 5104. |
If a rectangular prestressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be |
| A. | 5 cm |
| B. | 10 cm |
| C. | 15 cm |
| D. | 20 cm |
| E. | 25 cm |
| Answer» C. 15 cm | |
| 5105. |
The depth of the centre of gravity (y) of the resultant compressive stress from the compression edge of the T-beam specified in Q. 13.52 is given by |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-53-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-53-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-53-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-53-4.png"> |
| Answer» E. | |
| 5106. |
If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2, the length of the beam having nominal reinforcement, is |
| A. | 4 cm |
| B. | 6 m |
| C. | 8 m |
| D. | 10 m |
| Answer» D. 10 m | |
| 5107. |
An under-reinforced section means |
| A. | Steel is provided at the under side only |
| B. | Steel provided is insufficient |
| C. | Steel provided on one face only |
| D. | Steel will yield first. |
| Answer» E. | |
| 5108. |
According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than |
| A. | 20 cm |
| B. | 30 cm |
| C. | 40 cm |
| D. | 50 cm |
| E. | 75 cm |
| Answer» C. 40 cm | |
| 5109. |
A pile of length L carrying a uniformly distributed load W per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-152-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-152-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-152-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-152-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-152-5.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-152-4.png"> | |
| 5110. |
The spacing of transverse reinforcement of column is decided by the following consideration. |
| A. | The least lateral dimension of the column |
| B. | Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column |
| C. | Forty-eight times the diameter of transverse reinforcement |
| D. | All the above. |
| Answer» E. | |
| 5111. |
P is the prestressed force applied to the tendon of a rectangular prestressed beam whose area of cross section is A and sectional modulus is Z. The maximum stress f in the beam, subjected to a maximum bending moment M, is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-203-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-203-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-203-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-203-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-203-5.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-203-4.png"> | |
| 5112. |
The width of the rib of a T-beam, is generally kept between |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-49-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-49-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-49-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/73-13-49-4.png"> |
| Answer» E. | |
| 5113. |
If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/88-13-225-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/88-13-225-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/88-13-225-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/88-13-225-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/rcc-structures-design/88-13-225-2.png"> | |
| 5114. |
The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 7 mm |
| E. | 8 mm |
| Answer» E. 8 mm | |
| 5115. |
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 |
| A. | 10 mm |
| B. | 15 mm |
| C. | 20 mm |
| D. | 25 mm |
| E. | 30 mm |
| Answer» E. 30 mm | |
| 5116. |
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 |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/71-13-23-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/71-13-23-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/71-13-23-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/71-13-23-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/71-13-23-5.png"> |
| Answer» E. <img src="/_files/images/civil-engineering/rcc-structures-design/71-13-23-5.png"> | |
| 5117. |
On piles, the drop must be at least |
| A. | 80 cm |
| B. | 100 cm |
| C. | 120 cm |
| D. | 140 cm |
| E. | 150 cm |
| Answer» D. 140 cm | |
| 5118. |
In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are |
| A. | 6 legged |
| B. | 8 legged |
| C. | 10 legged |
| D. | 12 legged |
| E. | none of these. |
| Answer» C. 10 legged | |
| 5119. |
A flat slab is supported |
| A. | on beams |
| B. | on columns |
| C. | on beams and columns |
| D. | on columns monolithicaily built with slab |
| E. | all the above |
| Answer» E. all the above | |
| 5120. |
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-22-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-22-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-22-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-22-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-22-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-22-2.png"> | |
| 5121. |
If jd is the lever arm and O is the total perimeter of reinformcement of an R.C.C. beam, the bond stress at the section having Q shear force, is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/89-13-237-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/89-13-237-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/89-13-237-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/89-13-237-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/rcc-structures-design/89-13-237-4.png"> | |
| 5122. |
If the loading on a prestressed rectangular beam, is uniformly distributed, the tendon to be provided should be . |
| A. | straight below centroidal axis |
| B. | parabolic with convexity downward |
| C. | parabolic with convexity upward |
| D. | straight above centroidal axis |
| E. | none of these. |
| Answer» C. parabolic with convexity upward | |
| 5123. |
In a doubly-reinforced beam if c and t are stresses in concrete and tension reinforcement, d is the effective depth and n is depth of critical neutral axis n, the following relationship holds good |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-14-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-14-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-14-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-14-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-14-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/rcc-structures-design/70-13-14-2.png"> | |
| 5124. |
The Total pressure on the vertical face of a retaining wall of height h exerted by the retained earth weighing w per unit volume having an angle of surcharge , is : |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-165-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-165-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-165-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-165-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-165-4.png"> | |
| 5125. |
A raft foundation is provided if its area exceeds the plan area of the building by |
| A. | 10% |
| B. | 20% |
| C. | 30% |
| D. | 40% |
| E. | 50% |
| Answer» F. | |
| 5126. |
The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30 and 2000 kg respectively, the effective width of the stem at the bottom, is |
| A. | 51.5 |
| B. | 52.5 |
| C. | 53.5 |
| D. | 54.5 |
| E. | 55.5 |
| Answer» D. 54.5 | |
| 5127. |
If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is |
| A. | 200 cm |
| B. | 300 cm |
| C. | 150 cm |
| D. | 100 cm |
| Answer» D. 100 cm | |
| 5128. |
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. |
| Answer» E. | |
| 5129. |
An R.C.C. roof slab is designed as a two way slab if |
| A. | it supports live loads in both directions |
| B. | the ratio of spans in two directions is less than 2 |
| C. | the slab is continuous over two supports |
| D. | the slab is discontinuous at edges. |
| Answer» C. the slab is continuous over two supports | |
| 5130. |
If H is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is |
| A. | 0.3 H |
| B. | 0.4 H |
| C. | 0.5 H |
| D. | 0.6 H |
| E. | 0.7 H |
| Answer» F. | |
| 5131. |
If C is creep coefficient, f is original prestress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is: |
| A. | <i>(1 - C)mf - eE</i> |
| B. | <i>(C - 1)mf + eE</i> |
| C. | <i>(C - 1)mf - eE</i> |
| D. | <i>(1 - C)mf + eE</i> |
| Answer» C. <i>(C - 1)mf - eE</i> | |
| 5132. |
In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at |
| A. | less loaded column |
| B. | more loaded column |
| C. | a point equidistant from either column |
| D. | a point of the maximum shear force |
| E. | a point of zero shear force. |
| Answer» F. | |
| 5133. |
A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/69-13-6-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/69-13-6-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/69-13-6-3.png"> |
| D. | all the above |
| Answer» E. | |
| 5134. |
Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than |
| A. | one diameter of thinner bar |
| B. | one diameter of thicker bar |
| C. | sum of the diameters of ihinner and thicker bars |
| D. | twice the diameter of thinner bar |
| E. | none of these. |
| Answer» C. sum of the diameters of ihinner and thicker bars | |
| 5135. |
The system in which high tensile alloy steel bars (silica manganese steel) are used as prestressing tendons, is known as |
| A. | Freyssinet system |
| B. | Magnel-Blaton system |
| C. | C.C.L. standard system |
| D. | Lee-McCall system. |
| Answer» E. | |
| 5136. |
The minimum clear cover for R.C.C. columns shall be |
| A. | greater of 40 mm or diameter |
| B. | smaller of 40 mm or diameter |
| C. | greater of 25 mm or diameter |
| D. | smaller of 25 mm or diameter |
| Answer» D. smaller of 25 mm or diameter | |
| 5137. |
A foundation is called shallow if its depth, is |
| A. | one-fourth of its width |
| B. | half of its width |
| C. | three-fourth of its width |
| D. | equal to its width |
| E. | all the above. |
| Answer» E. all the above. | |
| 5138. |
If the size of a column is reduced above the floor, the main bars of the columns, are |
| A. | continued up |
| B. | bent inward at the floor level |
| C. | stopped just below the floor level and separate lap bars provided |
| D. | all the above. |
| Answer» E. | |
| 5139. |
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 |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-153-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-153-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-153-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-153-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-153-5.png"> |
| Answer» E. <img src="/_files/images/civil-engineering/rcc-structures-design/81-13-153-5.png"> | |
| 5140. |
Distribution of shear intensity over a rectangular section of a beam, follows : |
| A. | a circular curve |
| B. | a straight line |
| C. | a parabolic curve |
| D. | an elliptical curve |
| E. | none of these. |
| Answer» D. an elliptical curve | |
| 5141. |
[A + (m - 1)ASC] known as equivalent concrete area of R.C.C. is given by |
| A. | modular ratio method |
| B. | load factor method |
| C. | ultimate load method |
| D. | none of these. |
| Answer» B. load factor method | |
| 5142. |
The maximum diameter of a bar used in a ribbed slab, is |
| A. | 12 mm |
| B. | 6 mm |
| C. | 20 mm |
| D. | 22 mm |
| E. | 24 mm |
| Answer» E. 24 mm | |
| 5143. |
If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is |
| A. | 0.496% |
| B. | 0.596% |
| C. | 0.696% |
| D. | 0.796% |
| E. | none of these. |
| Answer» D. 0.796% | |
| 5144. |
If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2, the share stirrups are provided for a distance x from either end where x is |
| A. | 50 cm |
| B. | 100 cm |
| C. | 150 cm |
| D. | 200 cm |
| Answer» D. 200 cm | |
| 5145. |
The radius of a bar bend to form a hook, should not be less than |
| A. | twice the diameter |
| B. | thrice the diameter |
| C. | four times the diameter |
| D. | five times the diameter |
| E. | none of these. |
| Answer» B. thrice the diameter | |
| 5146. |
According to load factor method, the permissible load W on a short column reinforced with longitudinal bars and lateral stirrups, is |
| A. | Stress in concrete x area of concrete |
| B. | Stress in steel x area of steel |
| C. | Stress in concrete x area of concrete + Stress in steel x area of steel |
| D. | None of these. |
| Answer» D. None of these. | |
| 5147. |
If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 8 mm |
| E. | 10 mm |
| Answer» C. 6 mm | |
| 5148. |
If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the prestressed beam is L, the upward uniform pressure will be |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/87-13-210-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/87-13-210-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/87-13-210-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/87-13-210-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/87-13-210-5.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/rcc-structures-design/87-13-210-3.png"> | |
| 5149. |
If p1 is the vertical intensity of pressure at a depth h on a block of earth weighing w per unit volume and the angle of repose , the lateral intensity of pressure p2 is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-163-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-163-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-163-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-163-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/rcc-structures-design/82-13-163-3.png"> | |
| 5150. |
A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is |
| A. | 20 cm |
| B. | 25 cm |
| C. | 30 cm |
| D. | 35 cm |
| E. | 40 cm |
| Answer» D. 35 cm | |