MCQOPTIONS
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MCQOPTIONS
This section includes 272 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. |
Horizontal stiffener in a plate girder is provided to safeguard against |
| A. | shear buckling of web plate |
| B. | compression buckling of web plate |
| C. | yielding |
| D. | all of the above |
| Answer» C. yielding | |
| 102. |
Poisson's ratio for steel within elastic limit, ranges from |
| A. | 0.15 to 0.20 |
| B. | 0.25 to 0.24 |
| C. | 0.25 to 0.33 |
| D. | 0.33 to 0.35 |
| Answer» D. 0.33 to 0.35 | |
| 103. |
The minimum width B of a solid casing for a cased beam, is equal to |
| A. | b = b + 25 mm |
| B. | b = b + 50 mm |
| C. | b = b + 75 mm |
| D. | b = b + 100 mm |
| Answer» E. | |
| 104. |
The beams supporting the steps of a stair are generally known as |
| A. | headers |
| B. | trimmers |
| C. | stringers |
| D. | spandrel beams |
| Answer» D. spandrel beams | |
| 105. |
Rolled steel Tee-sections are used |
| A. | as columns |
| B. | with flat strips to connect plates in steel rectangular tanks |
| C. | as built up sections to resist axial tension |
| D. | none of these |
| Answer» C. as built up sections to resist axial tension | |
| 106. |
The shape factor of an isosceles triangle for bending about the axis parallel to the base is: |
| A. | 1.5 |
| B. | 1.7 |
| C. | 2.0 |
| D. | 2.34 |
| Answer» E. | |
| 107. |
Which of the following types of riveted joint is free from bending stresses? |
| A. | lap joint |
| B. | butt joint with single cover plate |
| C. | butt joint with double cover plates |
| D. | none of the above |
| Answer» D. none of the above | |
| 108. |
The greatest gauge of long rivets should not exceed (where d is the diameter of the holes). |
| A. | 2 d |
| B. | 4 d |
| C. | 6 d |
| D. | 8 d |
| Answer» E. | |
| 109. |
The effective length of a weld, is taken as the actual length |
| A. | minus the size of weld |
| B. | minus twice the size of weld |
| C. | plus the size of weld |
| D. | plus twice the size of weld |
| Answer» C. plus the size of weld | |
| 110. |
For a single section used as a tension member, the given area is assumed |
| A. | 20% to 30% in excess of the net area |
| B. | 30% to 40% in excess of the net area |
| C. | 40% to 50% in excess of the net area |
| D. | 50% to 60% in excess of the net area |
| Answer» D. 50% to 60% in excess of the net area | |
| 111. |
Net sectional area of a tension member, is equal to its gross section area |
| A. | plus the area of the rivet holes |
| B. | divided by the area of rivet holes |
| C. | multiplied by the area of the rivet holes |
| D. | none of these |
| Answer» E. | |
| 112. |
The rolled steel I-sections are most commonly used as beams because these provide |
| A. | large moment of inertia with less cross-sectional area |
| B. | large moment of resistance as compared to other section |
| C. | greater lateral stability |
| D. | all the above |
| Answer» E. | |
| 113. |
For simply supported beams, the maximum permitted deflection, is |
| A. | 1/325 of the span |
| B. | 1/350 of the span |
| C. | 1/375 of the span |
| D. | 1/400 of the span |
| Answer» B. 1/350 of the span | |
| 114. |
As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into |
| A. | 4 zones |
| B. | 5 zones |
| C. | 6 zones |
| D. | 7 zones |
| Answer» D. 7 zones | |
| 115. |
The minimum edge distance of a rivet line connecting two or more plates, is kept equal to 37 mm plus (where t is the thickness in mm of the thinner outside plate). |
| A. | 2 t |
| B. | 4 t |
| C. | 6 t |
| D. | 8 t |
| Answer» C. 6 t | |
| 116. |
If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be |
| A. | 40 mm |
| B. | 60 mm |
| C. | 80 mm |
| D. | 100 mm |
| Answer» C. 80 mm | |
| 117. |
In rolled steel beams, shear force is mostly resisted by |
| A. | web only |
| B. | flanges only |
| C. | web and flanges together |
| D. | none of these |
| Answer» B. flanges only | |
| 118. |
The most economical section for a column, is |
| A. | rectangular |
| B. | solid round |
| C. | flat strip |
| D. | tubular section |
| Answer» E. | |
| 119. |
A butt weld is specified by |
| A. | effective throat thickness |
| B. | plate thickness |
| C. | size of weld |
| D. | penetration thickness |
| Answer» B. plate thickness | |
| 120. |
A web plate is called unstiffened if the ratio of clear depth to thickness is less than |
| A. | 35 |
| B. | 50 |
| C. | 65 |
| D. | 85 |
| Answer» E. | |
| 121. |
According to IS : 800 - 71, the minimum thickness of a vertically stiffened web plate, shall not be less than |
| A. | d/85 |
| B. | d/200 |
| C. | d/225 |
| D. | d/250 |
| Answer» E. | |
| 122. |
Rolled steel beams are: |
| A. | mainly used to resist bending stress |
| B. | used as independent sections to resist compressive stress |
| C. | used as independent sections to resist tensile stress |
| D. | all the above |
| Answer» E. | |
| 123. |
For determination of allowable stress in axial compression, Indian Standard Institution has adopted |
| A. | euler\s formula |
| B. | rankine formula |
| C. | perry robertson formula |
| D. | secant formula |
| Answer» E. | |
| 124. |
The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be: |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» D. 10 mm | |
| 125. |
The diameter of a bolt hole is taken as the nominal diameter of the bolt plus |
| A. | 1.0 mm |
| B. | 1.2 mm |
| C. | 1.4 mm |
| D. | 1.6 mm |
| Answer» E. | |
| 126. |
Bulb angles are used in |
| A. | column building |
| B. | bridge building |
| C. | ship building |
| D. | water tank building |
| Answer» D. water tank building | |
| 127. |
The ratio of plastic section modulus to elastic section modulus |
| A. | is equal to 1 |
| B. | is always less than 1 |
| C. | is always greater than 1 |
| D. | can be less than 1 |
| Answer» D. can be less than 1 | |
| 128. |
According to the Unwin's formula, if is thickness of the plate in mm, the nominal diameter of the rivet, is |
| A. | d = 1.91 t |
| B. | d = 1.91 t2 |
| C. | d = 1.91 t |
| D. | d = 1.91 t |
| Answer» D. d = 1.91 t | |
| 129. |
Compression force in two end posts, the pin of a rocker bearing in a bridge is designed for |
| A. | bearing and shear |
| B. | bending and shear |
| C. | bearing and bending |
| D. | bearing, shear and bending |
| Answer» E. | |
| 130. |
A structural member subjected to tensile force in a direction parallel to its longitudinal axis, is generally known as |
| A. | a tie |
| B. | a tie member |
| C. | a tension member |
| D. | all the above |
| Answer» E. | |
| 131. |
To keep the intensity of bearing pressure between the column base and concrete, compressive throughout the length of the column base, the ratio of the moment M to axial load P should be |
| A. | < l/3 |
| B. | < l/6 |
| C. | > l/3 |
| D. | > l/6 |
| Answer» C. > l/3 | |
| 132. |
The minimum thickness of plates in a steel stack should be |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 8 mm |
| Answer» D. 8 mm | |
| 133. |
In factory buildings, the horizontal beams spanning between the wall columns supporting a wall covering, are called |
| A. | stringers |
| B. | trimmers |
| C. | girts |
| D. | lintels |
| Answer» D. lintels | |
| 134. |
When the length of a tension member is too long |
| A. | a wire rope is used |
| B. | a rod is used |
| C. | a bar is used |
| D. | a single angle is used |
| Answer» D. a single angle is used | |
| 135. |
To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 136. |
Long column is one |
| A. | which is more than 3 m long |
| B. | whose lateral dimension is less than 25 cm |
| C. | which is free at its top |
| D. | which has a ratio of effective length and least lateral dimension more than 15 |
| Answer» E. | |
| 137. |
If d is the distance between the flange angles, the vertical stiffeners in plate girders without horizontal stiffeners, are spaced at a distance not less than |
| A. | 0.15 d |
| B. | 0.22 d |
| C. | 0.33 d |
| D. | 0.44 d |
| Answer» D. 0.44 d | |
| 138. |
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is |
| A. | 5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 139. |
The ratio of hydrostatic stress to the volumetric strain within the elastic range, is called |
| A. | modulus of elasticity |
| B. | shear modulus of elasticity |
| C. | bulk modulus of elasticity |
| D. | all the above |
| Answer» E. | |
| 140. |
When a large value of radius of gyration is not required |
| A. | channels are placed back to back |
| B. | channel flanges are kept inward |
| C. | channel flanges are kept outward |
| D. | none of these |
| Answer» C. channel flanges are kept outward | |
| 141. |
According to IS: 800, in the Merchant Rankine formula the value of imperfection index (n) is |
| A. | 1.0 |
| B. | 1.4 |
| C. | 1.8 |
| D. | 2.0 |
| Answer» C. 1.8 | |
| 142. |
The rivets which are heated and then driven in the field, are known |
| A. | power driven shop rivets |
| B. | power driven field rivets |
| C. | hand driven rivets |
| D. | cold driven rivets |
| Answer» C. hand driven rivets | |
| 143. |
In the cross-section of a weld, throat is the |
| A. | minimum dimension |
| B. | average dimension |
| C. | maximum dimension |
| D. | none of the above |
| Answer» B. average dimension | |
| 144. |
The beam outside a wall upto floor level above it, is known as |
| A. | rafter |
| B. | purlin |
| C. | spandrel beam |
| D. | lintel |
| Answer» D. lintel | |
| 145. |
For double angles carrying tension, placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to cross sectional area of |
| A. | the section |
| B. | the section plus area of rivet holes |
| C. | the section minus area of rivet holes |
| D. | the section multiplied by the area of the rivet hole |
| Answer» D. the section multiplied by the area of the rivet hole | |
| 146. |
Lug angles |
| A. | are used to reduce the length of connection |
| B. | are unequal angles |
| C. | increases shear lag |
| D. | all the above |
| Answer» B. are unequal angles | |
| 147. |
When the axis of load lies in the plane of rivet group, then the rivets are subjected to |
| A. | only shear stresses |
| B. | only tensile stresses |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» B. only tensile stresses | |
| 148. |
Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet). |
| A. | fb = w/(b + h tw |
| B. | fb = w/(b + 2h tw |
| C. | fb = w/(b + 2h tw |
| D. | fb = w/(b + h tw |
| Answer» C. fb = w/(b + 2h tw | |
| 149. |
The Indian standard code which deals with steel structures, is |
| A. | is : 875 |
| B. | is : 800 |
| C. | is : 456 |
| D. | is : 1893 |
| Answer» C. is : 456 | |
| 150. |
A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed |
| A. | 180 |
| B. | 200 |
| C. | 300 |
| D. | 350 |
| Answer» E. | |