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MCQOPTIONS
This section includes 948 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 651. |
If a member carries a tensile force P on its area of cross-section A, the normal stress introduced on an inclined plane making an angle θ with its transverse plane, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 652. |
A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm². If the moment of inertia of the beam is 640 cm⁴, the overall depth of the beam is |
| A. | 10 cm |
| B. | 12 cm |
| C. | 15 cm |
| D. | 16 cm |
| Answer» B. 12 cm | |
| 653. |
In a square beam loaded longitudinally, shear develops |
| A. | on middle fibre along horizontal plane |
| B. | on lower fibre along horizontal plane |
| C. | on top fibre along vertical plane |
| D. | equally on each fibre along horizontal plane |
| Answer» E. | |
| 654. |
The number of points of contraflexure in a simple supported beam carrying uniformly distributed load, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 0 |
| Answer» E. | |
| 655. |
The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is |
| A. | one-half of the radius |
| B. | one-third of the radius |
| C. | one-quarter of the radius |
| D. | one-fifth of the radius |
| Answer» D. one-fifth of the radius | |
| 656. |
The tensile force required to cause an elongation of 0.045 mm in a steel rod of 1000 mm length and 12 mm diameter, is (where E = 2 x 10⁶ kg/cm²) |
| A. | 166 kg |
| B. | 102 kg |
| C. | 204 kg |
| D. | 74 kg |
| Answer» C. 204 kg | |
| 657. |
At either end of a plane frame, maximum number of possible transverse shear forces, are |
| A. | one |
| B. | two |
| C. | three |
| D. | four |
| Answer» B. two | |
| 658. |
While testing a cast iron beam (2.5 cm x 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is : |
| A. | 960 kg/cm² |
| B. | 980 kg/cm² |
| C. | 1000 kg/cm² |
| D. | 1200 kg/cm². |
| Answer» B. 980 kg/cm² | |
| 659. |
In a three hinged arch, the shear force is usually |
| A. | maximum at crown |
| B. | maximum at springings |
| C. | maximum at quarter points |
| D. | varies with slope. |
| Answer» C. maximum at quarter points | |
| 660. |
Reactions at the supports of a structure can be determined by equating the algebraic sum of |
| A. | horizontal forces to zero |
| B. | vertical forces to zero |
| C. | moment about any point to zero |
| D. | all the above. |
| Answer» E. | |
| 661. |
The rise of a parabolic arch at quarter points, is equal to |
| A. | 1/3times the rise of the crown |
| B. | 1/4times the rise of the crown |
| C. | 1/2times the rise of the crown |
| D. | 3/4times the rise of the crown |
| Answer» E. | |
| 662. |
A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is |
| A. | 3S/bh |
| B. | 4S/bh |
| C. | 4b/Sh |
| D. | 3b/Sh |
| Answer» B. 4S/bh | |
| 663. |
If the beam is supported so that there are only three unknown reactive elements at the supports. These can be determined by using the following fundamental equation of statics |
| A. | ∑H = 0 |
| B. | ∑V = 0 |
| C. | ∑H = 0; ∑H = 0 |
| D. | ∑H = 0; ∑V = 0; ∑M = 0 |
| Answer» E. | |
| 664. |
The ratio of the moment of inertia of a circular plate and that of a square plate for equal depth, is |
| A. | less than one |
| B. | equal to one |
| C. | more than one |
| D. | equal to 3π/16 |
| Answer» E. | |
| 665. |
When equal and opposite forces applied to a body, tend to elongate it, the stress so produced, is called |
| A. | shear stress |
| B. | compressive stress |
| C. | tensile stress |
| D. | transverse stress. |
| Answer» D. transverse stress. | |
| 666. |
If a shaft is rotating N revolutions per minute with an applied torque T kg-m, the horse power being transmitted by the shaft, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 667. |
The cross sections of the beams of equal length are a circle and a square whose permissible bending stress are same under same maximum bending. The ratio of their flexural weights is, |
| A. | 1.118 |
| B. | 1.338 |
| C. | 1.228 |
| D. | 1.108 |
| Answer» B. 1.338 | |
| 668. |
In a simply supported beam (l + 2a) with equal overhangs (a) and carrying a uniformly distributed load over its entire length, B.M. at the middle point of the beam will be zero if |
| A. | l = 2a |
| B. | l = 4a |
| C. | l < 2a |
| D. | l > a |
| Answer» B. l = 4a | |
| 669. |
A bending moment may be defined as : |
| A. | Arithmetic sum of the moments of all the forces on either side of the section |
| B. | Arithmetic sum of the forces on either side of the section |
| C. | Algebraic sum of the moments of all the forces on either side of the section |
| D. | None of these. |
| Answer» D. None of these. | |
| 670. |
The value of Poisson's ratio always remains |
| A. | greater than one |
| B. | less than one |
| C. | equal to one |
| D. | none of these. |
| Answer» C. equal to one | |
| 671. |
A shaft turning 150 r.p.m. is subjected to a torque of 150 kgm. Horse power transmitted by the shaft is |
| A. | π |
| B. | 10 π |
| C. | π2 |
| D. | 1/π |
| Answer» C. π2 | |
| 672. |
For a beam, if fundamental equations of statics are not sufficient to determine all the reactive forces at the supports, the structure is said to be |
| A. | determinate |
| B. | statically determinate |
| C. | statically indeterminate |
| D. | none of these. |
| Answer» D. none of these. | |
| 673. |
The shape of the bending moment diagram over the length of a beam, having no external load, is always |
| A. | linear |
| B. | parabolic |
| C. | cubical |
| D. | circular. |
| Answer» B. parabolic | |
| 674. |
Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose |
| A. | one end is fixed and other end is hinged |
| B. | both ends are hinged or pin jointed |
| C. | one end is fixed and the other end entirely free |
| D. | both the ends are fixed |
| Answer» E. | |
| 675. |
If the width b and depth d of a beam simply supported with a central load are interchanged, the deflection at the centre of the beam will be changed in the ratio of |
| A. | b/d |
| B. | d/b |
| C. | (d/b)² |
| D. | (b/d)² |
| Answer» E. | |
| 676. |
The following assumption is not true in the theory of pure torsion : |
| A. | The twist along the shaft is uniform |
| B. | The shaft is of uniform circular section throughout |
| C. | Cross-section of the shaft, which is plane before twist remains plane after twist |
| D. | All radii get twisted due to torsion. |
| Answer» E. | |
| 677. |
The ratio of the tensile stress developed in the wall of a boiler in the circumferential direction to the tensile stress in the axial direction, is |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» D. 1 | |
| 678. |
The ratio of the flexural strengths of two square beams one placed with its two sides horizontal and the other placed with one diagonal vertical, diagonal, is |
| A. | √2 |
| B. | √3 |
| C. | √5 |
| D. | √7 |
| Answer» B. √3 | |
| 679. |
The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm², the permissible maximum crippling load will be |
| A. | 1.288 tonnes |
| B. | 12.88 |
| C. | 128.8 tonnes |
| D. | 288.0 |
| Answer» C. 128.8 tonnes | |
| 680. |
The radius of gyration of a rectangular section is not proportional to |
| A. | square root of the moment of inertia |
| B. | square root of the inverse of the area |
| C. | square root of the moment of inertia divided by area of the section |
| D. | none of these. |
| Answer» E. | |
| 681. |
Hooke's law states that stress and strain are |
| A. | directly proportional |
| B. | inversely proportional |
| C. | curvilinearly related |
| D. | none of these. |
| Answer» B. inversely proportional | |
| 682. |
The shear force on a simply supported beam is proportional to |
| A. | displacement of the neutral axis |
| B. | sum of the forces |
| C. | sum of the transverse forces |
| D. | algebraic sum of the transverse forces of the section |
| Answer» E. | |
| 683. |
A simply supported beam (l + 2a) with equal overhangs (a) carries a uniformly distributed load over the whole length, the B.M. changes sign if |
| A. | l > 2a |
| B. | l < 2a |
| C. | l = 2a |
| D. | l = 4a |
| Answer» B. l < 2a | |
| 684. |
As compared to uniaxial tension or compression, the strain energy stored in bending is only |
| A. | 1/8 |
| B. | 1/4 |
| C. | 1/3 |
| D. | 1/2 |
| Answer» D. 1/2 | |
| 685. |
If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by |
| A. | 1/2 |
| B. | 1/8 |
| C. | 2 |
| D. | 8 |
| Answer» B. 1/8 | |
| 686. |
The effect of arching a beam, is |
| A. | to reduce the bending moment throughout |
| B. | to increase the bending moment throughout |
| C. | nothing on the bending throughout |
| D. | ail the above. |
| Answer» B. to increase the bending moment throughout | |
| 687. |
For a beam of uniform strength keeping its depth constant, the width will vary in proportion to |
| A. | bending moment (M) |
| B. | √M |
| C. | M² |
| D. | none of these. |
| Answer» B. √M | |
| 688. |
The areas of cross-section of a square beam and a circular beam subjected to equal bending moments, are same. |
| A. | circular beam is more economical |
| B. | square beam is more economical |
| C. | both the beams are equally strong |
| D. | both the beams are equally economical |
| Answer» C. both the beams are equally strong | |
| 689. |
A simply supported beam carries two equal concentrated loads W at distances L/3 from either support. The maximum bending moment |
| A. | WL/3 |
| B. | WL/4 |
| C. | 5WL/4 |
| D. | 3WL/12 |
| Answer» B. WL/4 | |
| 690. |
The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always |
| A. | linear |
| B. | parabolic |
| C. | cubical |
| D. | circular. |
| Answer» C. cubical | |
| 691. |
The moment diagram for a cantilever which is subjected to a uniformly distributed load will be a |
| A. | triangle |
| B. | rectangle |
| C. | parabola |
| D. | cubic parabola. |
| Answer» D. cubic parabola. | |
| 692. |
If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint |
| A. | one of the forces must be zero |
| B. | each force must be zero |
| C. | forces must be equal and of the same sign |
| D. | forces must be equal in magnitude but opposite in sign. |
| Answer» C. forces must be equal and of the same sign | |
| 693. |
The minimum number of rivets for the connection of a gusset plate, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 694. |
If two tensile forces mutually perpendicular act on a rectangular parallelopiped bar are equal, the resulting elongation of the pipe, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 695. |
A simply supported wooden beam 150 cm long and having a cross section 16 cm x 24 cm carries a concentrated load, at the centre. If the permissible stress ft = 75 kg/cm² and fs = 10 kg/cm² the safe load is |
| A. | 3025 kg |
| B. | 3050 kg |
| C. | 3075 kg |
| D. | 3100 kg. |
| Answer» D. 3100 kg. | |
| 696. |
The property of a material by which it can be beaten or rolled into thin plates, is called |
| A. | malleability |
| B. | ductility |
| C. | plasticity |
| D. | elasticity. |
| Answer» B. ductility | |
| 697. |
The principal stresses at a point are 100, 100 and-200 kgf/cm², the octo hedral shear stress at the point is : |
| A. | 100 √2 kg/cm² |
| B. | 200 √2 kg/cm² |
| C. | 300 √2 kg/cm² |
| D. | 400 √2 kg/cm² |
| Answer» B. 200 √2 kg/cm² | |
| 698. |
For the same height, the bottom width for no tension, |
| A. | for triangular section is more than rectangular section |
| B. | for rectangular section is more than triangular section |
| C. | for triangular section is same as that of a rectangular section |
| D. | none of these. |
| Answer» D. none of these. | |
| 699. |
The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as |
| A. | yield stress |
| B. | longitudinal stress |
| C. | hoop stress |
| D. | circumferential stress |
| Answer» D. circumferential stress | |
| 700. |
A simply supported beam of span L carries a uniformly distributed load W. The maximum bending moment M is |
| A. | WL/2 |
| B. | WL/4 |
| C. | WL/8 |
| D. | WL/12 |
| Answer» D. WL/12 | |