MCQOPTIONS
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MCQOPTIONS
This section includes 208 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is |
| A. | M/T |
| B. | T/M |
| C. | 2M/ T |
| D. | 2T/M |
| Answer» D. 2T/M | |
| 102. |
Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then |
| A. | M/I = R/E = F/Y |
| B. | I/M = R/E = F/Y |
| C. | M/I = E/R = F/Y |
| D. | M/I = E/R = Y/F |
| Answer» D. M/I = E/R = Y/F | |
| 103. |
Principal planes are subjected to |
| A. | Normal stresses only |
| B. | Tangential stresses only |
| C. | Normal stresses as well as tangential stresses |
| D. | None of these |
| Answer» B. Tangential stresses only | |
| 104. |
A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be |
| A. | 2/3 |
| B. | 3/2 |
| C. | 5/8 |
| D. | 8/5 |
| Answer» E. | |
| 105. |
The load on a spring per unit deflection, is called |
| A. | Stiffness |
| B. | Proof resilience |
| C. | Proof stress |
| D. | Proof load |
| Answer» B. Proof resilience | |
| 106. |
At yield point of a test piece, the material |
| A. | Obeys Hooke’s law |
| B. | Behaves in an elastic manner |
| C. | Regains its original shape on removal of the load |
| D. | Undergoes plastic deformation |
| Answer» E. | |
| 107. |
The yield moment of a cross section is defined as the moment that will just produce the yield stress in |
| A. | The outer most fibre of the section |
| B. | The inner most fibre of the section |
| C. | The neutral fibre of the section |
| D. | The fibre everywhere |
| Answer» B. The inner most fibre of the section | |
| 108. |
Gradually applied static loads do not change with time their |
| A. | Magnitude |
| B. | Direction |
| C. | Point of application |
| D. | All the above |
| Answer» E. | |
| 109. |
A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm²and that of brass bar is 3000 mm². These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm² and Eb = 0.1 MN/mm², the stresses developed are: |
| A. | b = 10 N/mm² s = 20 N/mm 2 |
| B. | b = 8 N/mm² s = 16 N/mm² |
| C. | b = 6 N/mm² s = 12 N/mm² |
| D. | b = 5 N/mm² s = 10 N/mm² |
| Answer» B. b = 8 N/mm² s = 16 N/mm² | |
| 110. |
A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised |
| A. | Steel experiences tensile force |
| B. | Brass experiences compressive force |
| C. | Composite beam gets subjected to a couple |
| D. | All the above |
| Answer» E. | |
| 111. |
For beams of uniform strength, if depth is constant, |
| A. | Width b M |
| B. | Width b M |
| C. | Width b 3 M |
| D. | Width b 1/M |
| Answer» B. Width b M | |
| 112. |
A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm² is: |
| A. | 4.0 mm |
| B. | 4.5 mm |
| C. | 5.0 mm |
| D. | 5.5 mm |
| Answer» D. 5.5 mm | |
| 113. |
A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm², the bending strain energy stored in the bar, is |
| A. | 411 N mm |
| B. | 511 N mm |
| C. | 611 N mm |
| D. | 711 N mm |
| Answer» D. 711 N mm | |
| 114. |
The ratio of maximum and average shear stresses on a rectangular section, is |
| A. | 1 |
| B. | 1.25 |
| C. | 1.5 |
| D. | 2.5 |
| Answer» D. 2.5 | |
| 115. |
For calculating the allowable stress of long columns σ0 = σy/n [1 - a (1/r)²]is the empirical formula, known as |
| A. | Straight line formula |
| B. | Parabolic formula |
| C. | Perry |
| D. | Rankine |
| Answer» C. Perry | |
| 116. |
A material is said to be perfectly elastic if |
| A. | It regains its original shape on removal of the load |
| B. | It regains its original shape partially on removal of the load |
| C. | It does not regain its original shape at all |
| D. | None of these |
| Answer» B. It regains its original shape partially on removal of the load | |
| 117. |
The equivalent length is of a column of length having both the ends fixed, is |
| A. | 2 L |
| B. | L |
| C. | L/2 |
| D. | L |
| Answer» D. L | |
| 118. |
A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is |
| A. | L/d |
| B. | L/2d |
| C. | (L/2d)² |
| D. | (L/3d)² |
| Answer» D. (L/3d)² | |
| 119. |
section modulus of a square section of side B and that of a circular section of the ratio of the diameter D, is |
| A. | 2 /15 |
| B. | 3 /16 |
| C. | 3 /8 |
| D. | /16 |
| Answer» C. 3 /8 | |
| 120. |
A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is |
| A. | 0.207 |
| B. | 0.307 |
| C. | 0.407 |
| D. | 0.508 |
| Answer» B. 0.307 | |
| 121. |
A body is said to be in equilibrium if |
| A. | It moves horizontally |
| B. | It moves vertically |
| C. | It rotates about its C.G. |
| D. | None of these |
| Answer» E. | |
| 122. |
Maximum strain theory for the failure of a material at the elastic limit, is known as |
| A. | Guest's or Trecas' theory |
| B. | St. Venant's theory |
| C. | Rankine's theory |
| D. | Haig's theory |
| Answer» C. Rankine's theory | |
| 123. |
The stiffness of the close coil helical spring is |
| A. | d4N/8D3n |
| B. | d4N/4D3n |
| C. | 4D3N/d4n |
| D. | 8D3N/d4n |
| Answer» B. d4N/4D3n | |
| 124. |
Inertia of a rectangular section of width and depth about an axis passing the moment of through C.G. and parallel to its width is |
| A. | BD²/6 |
| B. | BD³/6 |
| C. | BD³/12 |
| D. | B²D/6 |
| Answer» D. B²D/6 | |
| 125. |
The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is |
| A. | 1.0 |
| B. | 1.5 |
| C. | 2.0 |
| D. | 3.0 |
| Answer» E. | |
| 126. |
The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is |
| A. | WL²/2EI |
| B. | WL²/3EI |
| C. | WL3/2EI |
| D. | WL3/3EI |
| Answer» E. | |
| 127. |
A two hinged parabolic arch of span l and rise h carries a load varying from zero at the left end to ? per unit run at the right end. The horizontal thrust is |
| A. | ωl²/4h |
| B. | ωl²/8h |
| C. | ωl²/12h |
| D. | ωl²/16h |
| Answer» E. | |
| 128. |
A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is |
| A. | 4WD²n/d4N |
| B. | 4W²Dn/d4N |
| C. | 4W²D3n/d4N |
| D. | 4W²D3n²/d4N |
| Answer» D. 4W²D3n²/d4N | |
| 129. |
For the close coil helical spring of the maximum deflection is |
| A. | WD3n/d4N |
| B. | 2WD3n/d4N |
| C. | 4W²D3n/d4N |
| D. | 8WD3n/d4N |
| Answer» E. | |
| 130. |
A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm² and Poisson’s ratio is 0.25, the change in the volume of the bar is: |
| A. | 1.125 cm³ |
| B. | 2.125 cm³ |
| C. | 3.125 cm³ |
| D. | 4.125 cm² |
| Answer» D. 4.125 cm² | |
| 131. |
Stress may be defined as |
| A. | Force per unit length |
| B. | Force per unit volume |
| C. | Force per unit area |
| D. | None of these |
| Answer» D. None of these | |
| 132. |
The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due to flowing liquid, is |
| A. | ½ |
| B. | 1 |
| C. | 1½ |
| D. | 2 |
| Answer» E. | |
| 133. |
The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is |
| A. | 1/4 |
| B. | 1/2 |
| C. | 1 |
| D. | 2 |
| Answer» E. | |
| 134. |
A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be |
| A. | wa/27 |
| B. | wa²/27 |
| C. | w²a |
| D. | wa² |
| Answer» E. | |
| 135. |
The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is |
| A. | Circle |
| B. | Parabola |
| C. | Ellipse |
| D. | Straight line |
| Answer» D. Straight line | |
| 136. |
The vertical reaction for the arch is |
| A. | wa/2l |
| B. | wl/a |
| C. | wa/l |
| D. | wa²/2l |
| Answer» B. wl/a | |
| 137. |
For determining the support reactions at A and B of a three hinged arch, points B and Care joined and produced to intersect the load line at D and a line parallel to the load line through A at D’. Distances AD, DD’ and AD’ when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | 90° |
| Answer» E. | |
| 138. |
At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by |
| A. | Depth of the section |
| B. | Depth of the neutral axis |
| C. | Maximum tensile stress at the section |
| D. | Maximum compressive stress at the section |
| Answer» C. Maximum tensile stress at the section | |
| 139. |
The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is |
| A. | 2.75 cm |
| B. | 3.00 cm |
| C. | 3.50 cm |
| D. | 4.25 cm |
| Answer» E. | |
| 140. |
A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be |
| A. | p/a² |
| B. | 2p/a² |
| C. | 3p/a² |
| D. | 4p/a² |
| Answer» D. 4p/a² | |
| 141. |
A three hinged arch is generally hinged at its supports and |
| A. | At one quarter span |
| B. | At the crown |
| C. | Anywhere in the rib |
| D. | None of these |
| Answer» D. None of these | |
| 142. |
a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is |
| A. | el/2d |
| B. | e²l/3d² |
| C. | el²/3d² |
| D. | e²l²/3d² |
| Answer» D. e²l²/3d² | |
| 143. |
The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is |
| A. | 1/8 |
| B. | 1/4 |
| C. | 1/2 |
| D. | 1/3 |
| Answer» D. 1/3 | |
| 144. |
The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is |
| A. | 1/2 |
| B. | 2/3 |
| C. | 1/4 |
| D. | 1/3 |
| Answer» C. 1/4 | |
| 145. |
The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is |
| A. | 1/8 |
| B. | 1/10 |
| C. | 1/12 |
| D. | 1/16 |
| Answer» E. | |
| 146. |
A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is |
| A. | WL/2AE |
| B. | WL/AE |
| C. | W²L/AE |
| D. | W²L/2AE |
| Answer» E. | |
| 147. |
In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is |
| A. | L/2 |
| B. | L/3 |
| C. | L/4 |
| D. | L/5 |
| Answer» E. | |
| 148. |
In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is |
| A. | L/2 |
| B. | L/3 |
| C. | L/4 |
| D. | L/5 |
| Answer» C. L/4 | |
| 149. |
The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with a uniformly distributed load l t per horizontal length is (where Ic is the M.I. at the crown, which varies as the slope of the arch). |
| A. | 50/EIc |
| B. | 100/EIc |
| C. | 150/EIc |
| D. | 200/EIc |
| Answer» E. | |
| 150. |
If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good |
| A. | E = 3K (1 – 2/m) |
| B. | E = 2N (1 + 1/m) |
| C. | (3/2)K (1 – 2/m) = N (1 + 1/m) |
| D. | All the above |
| Answer» E. | |