MCQOPTIONS
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MCQOPTIONS
This section includes 179 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
The effective depth of a shallow beam is the distance between |
| A. | maximum compression and tension fibres |
| B. | neutral axis and maximum compression fibre |
| C. | neutral axis and maximum tension fibre |
| D. | maximum compression fibre and the centroid of the tension reinforcement |
| Answer» E. | |
| 102. |
The staggered pitch is the distance between two consecutive rivets measured |
| A. | parallel to the direction of stress in the member |
| B. | perpendicular to the direction of stress in the member |
| C. | diagonally |
| D. | none of these. |
| Answer» B. perpendicular to the direction of stress in the member | |
| 103. |
The minimum area of cross section of reinforcement in either direction of a slab should not be less than ...... of the slab cross section |
| A. | 0.0075 |
| B. | 0.001 |
| C. | 0.0015 |
| D. | 0.002 |
| Answer» D. 0.002 | |
| 104. |
The structure which is subjected to an imposed load after 72 hours for a period of 24 hours, is deemed to be unacceptable if it fails to recover the net deflection less than |
| A. | 0.9 |
| B. | 0.85 |
| C. | 0.8 |
| D. | 0.75 |
| Answer» D. 0.75 | |
| 105. |
For under water concreting. |
| A. | at least 10 percent more cement is required as compared to dry conditions |
| B. | the volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate |
| C. | the slump should not be less than 100 mm and not more than 180 mm |
| D. | dewatering by pumping is not done or until 24 hours thereafter |
| Answer» E. | |
| 106. |
The maximum pitch of rivets for compression and tension members should not exceed |
| A. | 32 t |
| B. | 200 mm |
| C. | 40 t |
| D. | 300 mm |
| Answer» E. | |
| 107. |
All reinforcement should be free from |
| A. | loose mill scales |
| B. | loose rust |
| C. | paints |
| D. | oil |
| Answer» E. | |
| 108. |
The pitch of transverse reinforcement of a column is taken as |
| A. | least lateral diamension of the compression member |
| B. | sixteen times the smallest diameter of the longitudinal reinforcement of the column |
| C. | forty eight times the diameter of the transverse reinforcement |
| D. | least value of the above. |
| Answer» E. | |
| 109. |
For calculating critical compression stress in bending Cs for sections symmetrical about the x-x axis, from the formula , the value of G is taken |
| A. | 0.2 E |
| B. | 0.3 E |
| C. | 0.4 E |
| D. | 0.5 E |
| Answer» D. 0.5 E | |
| 110. |
The effective length of lacing is the distance |
| A. | between the inner end rivets of the bar for single lacing |
| B. | 0.7 of the distance between the inner end rivets of the bar for double lacing |
| C. | between the inner ends of effective lengths of welds connecting the members |
| D. | 0.7 of the distance stated in (c) |
| Answer» E. | |
| 111. |
The angle of inclination of the lacing bars with axis of the member is kept between |
| A. | 20° and 50° |
| B. | 30° and 60° |
| C. | 40° and 70° |
| D. | 50° and 80° |
| Answer» D. 50¬∞ and 80¬∞ | |
| 112. |
Columns are designed for a minimum eccentricity equal to 1/30 (unsupported length ofthe column), subject to a minimum of |
| A. | 5 mm |
| B. | 10 mm |
| C. | 15 mm |
| D. | 20 mm |
| Answer» E. | |
| 113. |
Pick up the correct statement for the web stiffeners. |
| A. | vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d |
| B. | d is the distance between flange angles or the clear distance between flanges |
| C. | for horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange |
| D. | all the above. |
| Answer» E. | |
| 114. |
The individual part of the structures is subjected to a load test for 24 hours by applying a load equal to full dead load of the structure plus |
| A. | imposed load |
| B. | 1.15 times imposed load |
| C. | 1.25 times imposed load |
| D. | 1.3 times imposed load. |
| Answer» D. 1.3 times imposed load. | |
| 115. |
The minimum horizontal distance between two parallel main reinforcing bars, is |
| A. | the diameter of the bar if their diameters are same |
| B. | the diameter of the longer bar if their diameters are unequal |
| C. | 5 mm more than nominal maximum size of the coarse aggragate |
| D. | greatest value of the above. |
| Answer» E. | |
| 116. |
Minimum thickness of steel work directly exposed to weather and accessible for cleaning and repainting, the thickness should be not less than |
| A. | 4 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 7 mm |
| Answer» C. 8 mm | |
| 117. |
For concreting of shallow sections with vibration, the work ability of concrete should be |
| A. | very low |
| B. | low |
| C. | medium |
| D. | high. |
| Answer» B. low | |
| 118. |
The pH value of water to be used in concrete shall generally be |
| A. | not more than 7 |
| B. | not less than 6 |
| C. | not less than 5 |
| D. | not more than 6 |
| Answer» C. not less than 5 | |
| 119. |
A column of rectangular section is considered short, if both the slenderness ratios are less than |
| A. | 8 |
| B. | 10 |
| C. | 12 |
| D. | 16 |
| Answer» D. 16 | |
| 120. |
The spans of filler joists supporting a slab may be considered approximately equal if the longest span does not exceed the shortest span more than |
| A. | 0.05 |
| B. | 0.1 |
| C. | 0.15 |
| D. | 0.2 |
| Answer» D. 0.2 | |
| 121. |
For the proportions |
| A. | 1 : the maximum size of aggregates, is 10 mm |
| B. | 1 : 2 the maximum size of aggregates, is 20 mm |
| C. | 1 : the maximum size of aggregates, is 40 mm |
| D. | All the above. |
| Answer» E. | |
| 122. |
The thickness of the rectangular plate for the cap or base of a solid round steel columns, is calculated from the formula where d is |
| A. | the reduced diameter of the column |
| B. | the dimension of the base |
| C. | the diameter of the base |
| D. | the diameter of the top. |
| Answer» B. the dimension of the base | |
| 123. |
Generally acceptable nominal size of aggregates for reinforced concrete, is |
| A. | 10 mm |
| B. | 15 mm |
| C. | 20 mm |
| D. | 25 mm |
| Answer» D. 25 mm | |
| 124. |
Moist sand may contain surface water by mass upto |
| A. | 0.075 |
| B. | 0.05 |
| C. | 0.025 |
| D. | 0.0125 |
| Answer» D. 0.0125 | |
| 125. |
The ratio of minimum compressive strength on 15 cm cubes prepared with the concrete of M 20 grade and M 40 grade, at 7 days should be at least |
| A. | 43525 |
| B. | 43497 |
| C. | 43499 |
| D. | 2 |
| Answer» C. 43499 | |
| 126. |
Removal of props under |
| A. | slabs spanning upto 4.5 m is 7 days |
| B. | slabs spanning more than 4.5 m is 14 days |
| C. | beams spanning upto 6 m is 14 days |
| D. | beams spanning more than 6 m is 21 days |
| Answer» E. | |
| 127. |
The slenderness ratio of single angle discontinuous struts conmected by a single rivet or bolt, shall not exceed |
| A. | 110 |
| B. | 130 |
| C. | 150 |
| D. | 180 |
| Answer» E. | |
| 128. |
The reinforcing bars in beams are not bundled in contact if the diameter of the bars, exceeds |
| A. | 12 mm |
| B. | 20 mm |
| C. | 35 mm |
| D. | 30 mm |
| Answer» E. | |
| 129. |
The outstand of stiffeners should be (where t is the thickness of flat). |
| A. | 6 t |
| B. | 8 t |
| C. | 10 t |
| D. | 12 t |
| Answer» E. | |
| 130. |
The actual length of a column provided with a cap and base, is the distance between |
| A. | top of the base and underside of the cap |
| B. | bottom of the base and underside of the cap |
| C. | top of the base and top of the cap |
| D. | bottom of the base and top of the cap. |
| Answer» E. | |
| 131. |
When bending occurs about both axes of the member, the value of fbe in the formula |> 1 is taken |
| A. | higher value |
| B. | lower value |
| C. | sum of the two |
| D. | difference of the two. |
| Answer» D. difference of the two. | |
| 132. |
The maximum deflection of a structure should not normally exceed lesser of the span/350 or |
| A. | 10 mm |
| B. | 15 mm |
| C. | 20 mm |
| D. | 25 mm |
| Answer» D. 25 mm | |
| 133. |
The over all depth of a solid slab is 20 cm and effective depth is 15 cm. The horizontal distance between parallel main reinforcement should not be more than |
| A. | 30 cm |
| B. | 40 cm |
| C. | 45 cm |
| D. | 60 cm |
| Answer» D. 60 cm | |
| 134. |
The minimum compressive strength on 15 cm cubes of M 30 grade concrete at 7 days, should be a minimum of |
| A. | 7 N/mm2 |
| B. | 10 N/mm2 |
| C. | 20 N/mm2 |
| D. | 30 N/mm2 |
| Answer» D. 30 N/mm2 | |
| 135. |
For deformed reinforcing bars, the permissible design bond stress may be increased by |
| A. | 0.2 |
| B. | 0.3 |
| C. | 0.4 |
| D. | 0.5 |
| Answer» E. | |
| 136. |
If fck is the characteristic cube strength of concrete in N/mm2, the modulus of elasticity of structural concrete Ec = afck where the value of a, is |
| A. | 5900 |
| B. | 5800 |
| C. | 5700 |
| D. | 5600 |
| Answer» D. 5600 | |
| 137. |
Dispersion of load through the flange to web is considered as dispersed uniformly at an angle θ° is |
| A. | 10° |
| B. | 15° |
| C. | 20° |
| D. | 25° |
| Answer» E. | |
| 138. |
M 30 grade concrete means, its compressive strength of 15-cm cube, is 30 N/mm2 after |
| A. | 3 days |
| B. | 7 days |
| C. | 21 days |
| D. | 28 days |
| Answer» E. | |
| 139. |
For spans upto 10 m, the safe span to depth ratio for |
| A. | cantilever is 7 |
| B. | simply supported beams is 20 |
| C. | continuous beams is 26 |
| D. | all the above. |
| Answer» E. | |
| 140. |
If the slenderness ratio of a column is more than 160, the compressive stress obtained by the secant formula is multiplied by a factor in which value of x is |
| A. | 0.9 |
| B. | 1.1 |
| C. | 1.2 |
| D. | 1.5 |
| Answer» E. | |
| 141. |
The test strength of the sample is taken as the average of the strength of |
| A. | 2 specimens |
| B. | 3 specimens |
| C. | 4 specimens |
| D. | 5 specimens |
| Answer» C. 4 specimens | |
| 142. |
The ratio of the lacing bars for compression members shall not exceed |
| A. | 80 |
| B. | 120 |
| C. | 145 |
| D. | 200 |
| Answer» D. 200 | |
| 143. |
The flat slab is a reinforced concrete slab with or without drops and is supported |
| A. | on columns without column head |
| B. | on columns with column head |
| C. | on beams |
| D. | None of these. |
| Answer» D. None of these. | |
| 144. |
In case of continuous beams, the distance between the points of zero moment, may be obtained as (where l is the effective span). |
| A. | 0.5 l |
| B. | 0.6 l |
| C. | 0.7 l |
| D. | 0.8 l |
| Answer» D. 0.8 l | |
| 145. |
The maximum characteristic strength of the stirrups reinforcement, is taken |
| A. | 350 N/mm2 |
| B. | 375 N/mm2 |
| C. | 395 N/mm2 |
| D. | 415 N/mm2 |
| Answer» E. | |
| 146. |
Moist curing of the exposed surfaces of concrete is done at least for |
| A. | 3 days |
| B. | 5 days |
| C. | 7 days |
| D. | 14 days |
| Answer» D. 14 days | |
| 147. |
The minimum pitch i.e., the distance between centres of rivet holes is not less than |
| A. | 1.5 times the hole diameter |
| B. | 2.0 times the hole diameter |
| C. | 2.5 times the hole diameter |
| D. | 3.0 times the hole diameter |
| Answer» D. 3.0 times the hole diameter | |
| 148. |
As per IS : 800-1982, the coefficient of expansion for steel per degree centigrade per unit length, is |
| A. | 1.1E-5 |
| B. | 1.2E-5 |
| C. | 1.3E-5 |
| D. | 1.4E-5 |
| Answer» C. 1.3E-5 | |
| 149. |
Pick up the correct statement regarding columns. |
| A. | The cross sectional area of longitudinal reinforcement, should not be less than 0.8% nor more than 4% of its gross sectional area |
| B. | The minimum of longitudinal bars provided in rectangular and circular columns are 4 and 6 respectively |
| C. | In helically reinforced column, the minimum number of longitudinal reinforcement should be six |
| D. | If the effective length of a column is less than three times its lateral dimension, it is generally called a pedestal |
| Answer» E. | |
| 150. |
In adverse circumtances, the reinforced concrete member immersed in sea water or subjected to sea spray, the maximum permissible cover for the reinforcing bars, should not exceed |
| A. | 40 mm |
| B. | 50 mm |
| C. | 60 mm |
| D. | 70 mm |
| Answer» E. | |