MCQOPTIONS
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MCQOPTIONS
This section includes 251 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. |
A fillet weld may be termed as |
| A. | none of these. |
| B. | mitre weld |
| C. | concave weld |
| D. | convex weld |
| Answer» E. | |
| 102. |
If the unsupported length of a stanchion is 4 metres and least radius of gyration of its cross-section is 5, the slenderness ratio of the stanchion, is |
| A. | 1.5 d |
| B. | 1.75 d |
| C. | 60 |
| D. | 70 |
| Answer» D. 70 | |
| 103. |
The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula |
| A. | horizontal stiffeners are provided in high tensile girder steel plate if the web is less than d/180 |
| B. | horizontal stiffeners are provided in steel plate girders if the web is less than d/200 |
| C. | All the above. |
| Answer» D. | |
| 104. |
A simply supported beam carrying a central load, will be safe in deflection if the ratio of its span to depth, is |
| A. | 1890 kg/cm2 |
| B. | < 19 |
| C. | < 24 |
| D. | > 19 |
| Answer» C. < 24 | |
| 105. |
If f is the maximum allowable bending stress in a tension member whose radius of gyration is r and depth is 2y, the required cross sectional area A is given by |
| A. | is supported on all sides throughout its length |
| B. | is between the points of zero moments. |
| Answer» B. is between the points of zero moments. | |
| 106. |
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. | each web or one hole from each flange whichever is more |
| B. | each web or one hole from each flange whichever is less. |
| C. | 0.15 d |
| D. | 0.22 d |
| Answer» D. 0.22 d | |
| 107. |
The distance measured along one rivet line from the centre of a rivet to the centre of adjoining rivet on an adjacent parallel rivet line, is called |
| A. | minus the area of the rivet holes |
| B. | none of these. |
| C. | pitch of rivet |
| D. | gauge distance of rivet |
| Answer» D. gauge distance of rivet | |
| 108. |
A beam may be designed as a cased beam if |
| A. | section is of double open channel form with the webs not less than 40 mm apart |
| B. | overall depth and width of the steel section do not exceed 750 and 450 mm respectively. |
| C. | beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160 kg/cm2 |
| D. | width of the solid casing is kept at least 100 mm more than the width of the steel flange and having a concrete cover of 50 mm |
| Answer» E. | |
| 109. |
In case horizontal stiffeners are not used, the distance between vertical legs of flange angles at the top and bottom of a plate girder, is known as |
| A. | none of these. |
| B. | overall depth |
| C. | clear depth |
| D. | effective depth |
| Answer» C. clear depth | |
| 110. |
Net sectional area of a tension member, is equal to its gross section area |
| A. | none of these. |
| B. | plus the area of the rivet holes |
| C. | divided by the area of rivet holes |
| D. | multiplied by the area of the rivet holes |
| Answer» E. | |
| 111. |
For a rectangular section, the ratio of the maximum and average shear stresses, is |
| A. | 1500 kg/cm2 |
| B. | 1875 kg/cm2 |
| C. | 1.5 |
| D. | 2 |
| Answer» B. 1875 kg/cm2 | |
| 112. |
A beam is defined as a structural member subjected to |
| A. | axial loading |
| B. | transverse loading |
| C. | axial and transverse loading |
| D. | none of these. |
| Answer» C. axial and transverse loading | |
| 113. |
Effective length of a column effectively held in position and restrained in direction at both ends, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» C. 0.85 L | |
| 114. |
Design of a riveted joint is based on the assumption: |
| A. | B = b + 125 mm |
| B. | Bending stress in rivets is accounted for |
| C. | Riveted hole is assumed to be completely filled by the rivet |
| D. | Stress in the plate in not uniform |
| Answer» C. Riveted hole is assumed to be completely filled by the rivet | |
| 115. |
Rolled steel beams are designated by Indian Standard series and its |
| A. | L = 1.25 span |
| B. | weight per metre and depth of its section |
| C. | depth of section and weight per metre |
| D. | width of flange and weight per metre |
| Answer» C. depth of section and weight per metre | |
| 116. |
For steel members not exposed to weather, the thickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 117. |
The maximum tensile and compressive bending stress in extreme fibres of rolled I-sections and channels on the effective section, is |
| A. | 1500 kg/cm2 |
| B. | 1420 kg/cm2 |
| C. | 1650 kg/cm2 |
| D. | 2285 kg/cm2 |
| Answer» D. 2285 kg/cm2 | |
| 118. |
A riveted joint many experience |
| A. | tearing failure of plates |
| B. | bearing failure of plates |
| C. | splitting failure of plates at the edges |
| D. | bearing failure of rivets |
| Answer» E. | |
| 119. |
When the depth of a plate girder is at least n times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if n is |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» E. | |
| 120. |
The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as |
| A. | unstiffened seated connection |
| B. | stiffened seated connection |
| C. | seated connection |
| D. | none of these. |
| Answer» D. none of these. | |
| 121. |
The maximum permissible slenderness ratio of compression member carrying dead and superimposed load, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 300 |
| Answer» B. 200 | |
| 122. |
The allowable stress in axial tension is generally kept less if thickness of the member is more than |
| A. | 10 mm |
| B. | 12 mm |
| C. | 15 mm |
| D. | 20 mm |
| Answer» E. | |
| 123. |
The greatest permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to |
| A. | 180 t |
| B. | 220 t |
| C. | 230 t |
| D. | 260 t |
| Answer» E. | |
| 124. |
A structural member subjected to tensile force in a direction parallel to its logitudinal axis, is generally known as |
| A. | a tie |
| B. | a tie member |
| C. | a tension member |
| D. | all the above. |
| Answer» E. | |
| 125. |
The maximum axial load which is just sufficient to keep a column in a small deflected shape, is called |
| A. | crippling load |
| B. | buckling load |
| C. | critical load |
| D. | all the above. |
| Answer» E. | |
| 126. |
Rolled steel angle sections are classified as |
| A. | equal angles |
| B. | unequal angles |
| C. | bulb angles |
| D. | all the above. |
| Answer» E. | |
| 127. |
Design of a riveted joint, is based on the assumption: |
| A. | Load is uniformly distributed among all the rivets |
| B. | Shear stress on a rivet is uniformly distributed over its gross area |
| C. | Bearing stress is uniform between the contact surfaces of the plate and the rivet |
| D. | Bearing stress in the rivet is neglected |
| Answer» E. | |
| 128. |
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. | |
| 129. |
The ratio of the span L of the filler joists to the depth d from the under side of the joist to the top of the structural concrete, should not exceed |
| A. | 60 |
| B. | 45 |
| C. | 35 |
| D. | 25 |
| Answer» D. 25 | |
| 130. |
The most commonly used sections in lateral system to carry shear force in built up columns, are |
| A. | rolled steel flats |
| B. | rolled angles |
| C. | rolled channels |
| D. | all the above. |
| Answer» E. | |
| 131. |
IS : 800 - 1971 recommends that in a splice plate the number of rivets carrying calculated shear stress through a packing greater than 6 mm thick, is to be increased by 2.5% for every |
| A. | 1.00 mm thickness of packing |
| B. | 1.50 mm thickness of packing |
| C. | 2.0 mm thickness of packing |
| D. | 2.50 mm thickness of packing |
| Answer» D. 2.50 mm thickness of packing | |
| 132. |
Maximum permissible slenderness ratio of a member normally acting as a tie in a roof truss, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 300 |
| Answer» E. | |
| 133. |
The slenderness ratio of a column is zero when its length |
| A. | is zero |
| B. | is equal to its radius of gyration |
| C. | is supported on all sides throughout its length |
| D. | is between the points of zero moments. |
| Answer» E. | |
| 134. |
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 | |
| 135. |
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 | |
| 136. |
For the economical design of a combined footing to support two equal column loads, the projections of beams in lower tier are kept such that bending moment under column is equal to |
| A. | bending moment at the centre of the beam |
| B. | half the bending moment at the centre of the beam |
| C. | twice the bending moment at the centre of the beam |
| D. | none of these. |
| Answer» B. half the bending moment at the centre of the beam | |
| 137. |
With a percentage increase of carbon in steel, decreases its |
| A. | strength |
| B. | hardness |
| C. | brittleness |
| D. | ductility. |
| Answer» E. | |
| 138. |
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. | |
| 139. |
Perforated cover plates are particularly suitable for built up sections consisting of |
| A. | channels placed back to back |
| B. | channels placed toe to toe |
| C. | four angle box section |
| D. | all the above. |
| Answer» D. all the above. | |
| 140. |
Allowable working stress corresponding to the slenderness ratio of double angles placed back to back and connected to one side of a gusset plate, is reduced to |
| A. | 0.5 |
| B. | 0.6 |
| C. | 0.7 |
| D. | 0.8 |
| Answer» E. | |
| 141. |
The value of f.o.s 'm' in the formula for safe compressive stress for a column is taken as |
| A. | 1.5 |
| B. | 1.6 |
| C. | 1.68 |
| D. | 1.88 |
| Answer» D. 1.88 | |
| 142. |
For steel members exposed to weather and not accessible for repainting, the thickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» D. 10 mm | |
| 143. |
Effective sectional area of a compression member is : |
| A. | gross sectional area - area of rivet hole |
| B. | gross sectional ares + area of rivet hole |
| C. | gross sectional ares x area of rivet hole |
| D. | gross sectional ares + area of rivet hole. |
| Answer» B. gross sectional ares + area of rivet hole | |
| 144. |
As per ISI, rolled steel beam sections are classified into |
| A. | two series |
| B. | three series |
| C. | four series |
| D. | five series. |
| Answer» E. | |
| 145. |
A riveted joint may experience |
| A. | shear failure |
| B. | shear failure of plates |
| C. | bearing failure |
| D. | bearing failure of rivets |
| Answer» E. | |
| 146. |
The distance between the outer faces of flanges of a plate girder, is known as |
| A. | overall depth |
| B. | clear depth |
| C. | effective depth |
| D. | none of these. |
| Answer» B. clear depth | |
| 147. |
The effective length of a compression member of length L held in position at both ends but not restrained in direction, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» B. 0.67 L | |
| 148. |
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. | tthe section multiplied by the area of the rivet hole. |
| Answer» D. tthe section multiplied by the area of the rivet hole. | |
| 149. |
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 | |
| 150. |
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 | |