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MCQOPTIONS
This section includes 287 Mcqs, each offering curated multiple-choice questions to sharpen your ENGINEERING SERVICES EXAMINATION (ESE) knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull of 80tonnes. If the gross-diameter of the rivet is 26 mm, the number of rivets required in the splice, is |
| A. | 6 |
| B. | 7 |
| C. | 8 |
| D. | 9 |
| Answer» D. 9 | |
| 102. |
If the thickness of a structural member is small as compared to its length and width, it is classifiedas |
| A. | one dimensional |
| B. | two dimensional |
| C. | three dimensional |
| D. | none of these |
| Answer» C. three dimensional | |
| 103. |
For the economical design of a combined footing to support two equal column loads, theprojections 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 | |
| 104. |
In a built up beam actual bending compressive stress fbc is given by (when y1 is the distance of theedge of the beam from the neutral axis). |
| A. | fbc = (m/ixx) × y |
| B. | fbc = (ixx/m) × y |
| C. | fbc = (ixx/m) + y |
| D. | fbc = (m/ixx) + y |
| Answer» B. fbc = (ixx/m) × y | |
| 105. |
The thickness of the web of a mild steel plate girder is less than d/200. If only one horizontalstiffener is used, it is placed at |
| A. | the neutral axis of the section |
| B. | 2/3rd of the depth of the neutral axis from the compression flange |
| C. | 2/5th of the depth of the neutral axis from the compression flange |
| D. | 2/5th of the height of the neutral axis from tension flange |
| Answer» D. 2/5th of the height of the neutral axis from tension flange | |
| 106. |
The moment of the couple set up in a section of a beam by the longitudinal compressive andtensile force, is known as |
| A. | bending moment |
| B. | moment of resistance |
| C. | flexural stress moment |
| D. | none of these |
| Answer» C. flexural stress moment | |
| 107. |
If the floor is supported at or near the bottom but top chords of a bridge is not braced, then thebridge is called |
| A. | deck type |
| B. | through type |
| C. | half through type |
| D. | double deck type |
| Answer» D. double deck type | |
| 108. |
In a gusseted base, when the end of the column is machined for complete bearing on the baseplate, then the axial load is assumed to be transferred to base plate |
| A. | fully by direct bearing |
| B. | fully through fastenings |
| C. | 50% by direct bearing and 50% through fastenings |
| D. | 75% by direct bearing and 25% through fastenings |
| Answer» D. 75% by direct bearing and 25% through fastenings | |
| 109. |
The overlap of batten plates with the main members in welded connections should be more than |
| A. | 3 t |
| B. | 4 t |
| C. | 6 t |
| D. | 8 tt |
| Answer» C. 6 t | |
| 110. |
With usual notations of the letters, the shear stress fs at any point of the crosssection is given by |
| A. | fs =FQ/It |
| B. | fs =Ft/IQ |
| C. | fs =It/FQ |
| D. | fs =IF/Qt |
| Answer» B. fs =Ft/IQ | |
| 111. |
For a column of height fixed in position and direction both at its top and bottom, its effective length, is |
| A. | L |
| B. | L |
| C. | ½ L |
| D. | 2L |
| Answer» D. 2L | |
| 112. |
In a built up section carrying a tensile force, the flanges of two channels are turnedoutward |
| A. | To simplify the transverse connections |
| B. | To minimise lacing |
| C. | To have greater lateral rigidity |
| D. | All the above |
| Answer» D. All the above | |
| 113. |
Outstanding length of a compression member consisting of a channel, is measuredas |
| A. | Half of the nominal width |
| B. | Nominal width of the section |
| C. | From the edge to the first row ofrivets |
| D. | None of these |
| Answer» C. From the edge to the first row ofrivets | |
| 114. |
In moment resistant connections, the moment resistance of riveted connectiondepends upon |
| A. | Shear in rivets |
| B. | Compression in rivets |
| C. | Tension in rivets |
| D. | Strength of rivets in bearing |
| Answer» D. Strength of rivets in bearing | |
| 115. |
For a cantilever beam of length continuous at the support and unrestrained against torsion at the support and free at the end, the effective length is equal to |
| A. | l = L |
| B. | l = 2L |
| C. | l = 0.5L |
| D. | l = 3L |
| Answer» E. | |
| 116. |
The allowable stress in axial tension is generally kept less if thickness of themember is more than |
| A. | 10 mm |
| B. | 12 mm |
| C. | 15 mm |
| D. | 20 mm |
| Answer» E. | |
| 117. |
The maximum tensile and compressive bending stress in extreme fibres ofrolled 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. |
If the moment of inertia of a section about its axis is and its effective sectional area is, its radius of gyration r about the axis, is |
| A. | r = I/A |
| B. | r I/A) |
| C. | r = (I/A) |
| D. | r A/I) |
| Answer» C. r = (I/A) | |
| 119. |
When a large value of radius of gyration is not requiredChannels are placed back to back |
| A. | Channel flanges are kept inward |
| B. | Channel flanges are kept outward |
| C. | None of these |
| D. | all |
| Answer» C. None of these | |
| 120. |
Intermediate vertical stiffeners in a plate girder need be provided if the depth ofweb exceeds |
| A. | 50 t |
| B. | 85 t |
| C. | 200 t |
| D. | 250 tt |
| Answer» C. 200 t | |
| 121. |
As per IS : 875, for the purposes of specifying basic wind velocity, the countryhas been divided into |
| A. | 4 zones |
| B. | 5 zones |
| C. | 6 zones |
| D. | 7 zones |
| Answer» D. 7 zones | |
| 122. |
For a cantilever beam of length built-in at the support and restrained against torsion at the free end, the effective projecting length is |
| A. | l = 0.7 L |
| B. | l = 0.75 L |
| C. | l = 0.85 L |
| D. | l = 0.5 L |
| Answer» C. l = 0.85 L | |
| 123. |
The diameter of base of conical flare of a steel stack is ( d is the diameter of the cylindrical part) |
| A. | Less than d |
| B. | Equal to d |
| C. | More than d |
| D. | Any of the above |
| Answer» D. Any of the above | |
| 124. |
The least permissible clear dimension of the web of thickness t in the panel of aplate girder, is restricted to |
| A. | 150 t |
| B. | 160 t |
| C. | 170 t |
| D. | 180 t |
| Answer» E. | |
| 125. |
The slenderness ratio of a column supported throughout its length by a masonrywall is |
| A. | Zero |
| B. | 10 |
| C. | 100 |
| D. | Infinity |
| Answer» B. 10 | |
| 126. |
The method of design of steel framework for greatest rigidity and economy inweight, is known as |
| A. | Simply design |
| B. | Semi-rigid design |
| C. | Fully rigid design |
| D. | None of these |
| Answer» D. None of these | |
| 127. |
The maximum permissible slenderness ratio of compression membercarrying dead and superimposed load, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» B. 200 | |
| 128. |
The centrifugal force due to curvature of track is assumed to act on the bridge at aheight of |
| A. | 1.23 m above the rail level |
| B. | 1.50 m above the rail level |
| C. | 1.83 m above the rail level |
| D. | 2.13 m above the rail level |
| Answer» D. 2.13 m above the rail level | |
| 129. |
In a tension member if one or more than one rivet holes are off the line, the failure of the member depends upon: |
| A. | Pitch |
| B. | Gauge |
| C. | Diameter of the rivet holes |
| D. | All the above |
| Answer» E. | |
| 130. |
In a built up beam actual bending compressive stress fbc is given by (when y1 isthe distance of the edge of the beam from the neutral axis). |
| A. | fbc = (M/Ixx) × y |
| B. | fbc = (Ixx/M) × y |
| C. | fbc = (Ixx/M) + y |
| D. | fbc = (M/Ixx) + y |
| Answer» B. fbc = (Ixx/M) × y | |
| 131. |
The most commonly used sections in lateral system to carry shear force in built upcolumns, are |
| A. | Rolled steel flats |
| B. | Rolled angles |
| C. | Rolled channels |
| D. | All the above |
| Answer» E. | |
| 132. |
Study the following statements.(i) Top lateral bracing prevents the sides-way buckling of the chord.(ii) Sway bracing keeps the rectangular shape of the bridge cross-section.(iii) Sway bracing transfers the load from top of end posts to bearings.The correct answer is |
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (i) and (iii) |
| D. | All (i), (ii) and (iii) |
| Answer» C. Both (i) and (iii) | |
| 133. |
Secant formula for direct stress in compression, is applicable only for slendernessratio upto |
| A. | 120 |
| B. | 130 |
| C. | 140 |
| D. | 150 |
| Answer» D. 150 | |
| 134. |
In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull of 80 tonnes. If the gross-diameter of the rivet is 26 mm, the number of rivets required in the splice, is |
| A. | 6 |
| B. | 7 |
| C. | 8 |
| D. | 9 |
| Answer» D. 9 | |
| 135. |
Effective length of a column effectively held in position and restrained in direction atboth ends, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» C. 0.85 L | |
| 136. |
In case horizontal stiffeners are not used, the distance between vertical legs offlange angles at the top and bottom of a plate girder, is known as |
| A. | Overall depth |
| B. | Clear depth |
| C. | Effective depth |
| D. | None of these |
| Answer» C. Effective depth | |
| 137. |
As per IS : 800, for compression flange, the outstand of flange plates should notexceed |
| A. | 12 t |
| B. | 16 t |
| C. | 20 t |
| D. | 25 tt |
| Answer» C. 20 t | |
| 138. |
Angle of inclination of the lacing bar with the longitudinal axis of the columnshould preferably be between |
| A. | 10° to 30° |
| B. | 30° to 40° |
| C. | 40° to 70° |
| D. | 90° |
| Answer» D. 90° | |
| 139. |
The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5 cm thick wall not to exceed tensile stress 50kg/cm2, is |
| A. | 16 kg/cm2 |
| B. | 18 kg/cm2 |
| C. | 20 kg/cm2 |
| D. | 22 kg/cm2 |
| Answer» D. 22 kg/cm2 | |
| 140. |
For steel members exposed to weather and not accessible for repainting, thethickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» D. 10 mm | |
| 141. |
The central deflection of a simply supported steel beam of length L with aconcentrated load W at the centre, is |
| A. | WL3/3EI |
| B. | WL4/3EI |
| C. | WL3/48EI |
| D. | 5WL4/384EI |
| Answer» D. 5WL4/384EI | |
| 142. |
When the bolts are subjected to reversal of stresses, the most suitable type of boltis |
| A. | Black bolt |
| B. | Ordinary unfinished bolt |
| C. | Turned and fitted bolt |
| D. | High strength bolt |
| Answer» E. | |
| 143. |
The difference between gross diameter and nominal diameter for the rivets up to 25mm diameter is |
| A. | 1.0 mm |
| B. | 1.5 mm |
| C. | 2.0 mm |
| D. | 2.5 mm |
| Answer» C. 2.0 mm | |
| 144. |
By providing sufficient edge distance, which of the following failures of rivetedjoint can be avoided? |
| A. | Tension failure of the plate |
| B. | Shear failure of the rivet |
| C. | Shear failure of the plate |
| D. | Crushing failure of the rivet |
| Answer» D. Crushing failure of the rivet | |
| 145. |
Maximum pitch of rivets, used in steel stacks, is limited to |
| A. | 6 t |
| B. | 10 t |
| C. | 12 t |
| D. | 16 t t |
| Answer» C. 12 t | |
| 146. |
A second horizontal stiffener is always placed at the neutral axis of the girder ifthe thickness of the web is less than |
| A. | d/250 for structural steel |
| B. | d/225 for high tensile steel |
| C. | Both (c) and (b) |
| D. | Neither (a) nor (b) |
| Answer» D. Neither (a) nor (b) | |
| 147. |
If N is the number of rivets in the joint, the strength of a riveted joint againstshearing of rivets, is given by |
| A. | Ps = N d2 × Ps |
| B. | Ps = N × (d × t × ps) |
| C. | Ps = N × (p - d) × t × Ps |
| D. | Ps = N × (P + d) × t × ps |
| Answer» B. Ps = N × (d × t × ps) | |
| 148. |
The effect of racking forces is considered in the design of(i) Lateral braces(ii) Chord membersThe correct answer is |
| A. | Only (i) |
| B. | Only (ii) |
| C. | Both (i) and (ii) |
| D. | None of the above |
| Answer» B. Only (ii) | |
| 149. |
The load on a lintel is assumed as uniformly distributed if the height of themasonry above it, is upto a height of |
| A. | The effective span |
| B. | 1.25 times the effective span |
| C. | 1.50 times the effective span |
| D. | 2.0 times the effective span |
| Answer» C. 1.50 times the effective span | |
| 150. |
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 | |