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MCQOPTIONS
This section includes 5814 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 3751. |
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 |
| E. | ultimate stress. |
| Answer» D. circumferential stress | |
| 3752. |
An open-ended cylinder of radius r and thickness t is subjected to internal pressure p. The Young's modulus for the material is E and Poisson's ratio is . The longitudinal strain is |
| A. | zero |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.215-1.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.215-2.png"> |
| D. | none of these. |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/140-6.215-1.png"> | |
| 3753. |
The stiffness factor for a prismatic beam of length L and moment of inertia I, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-2.png"> | |
| 3754. |
If the stress in each cross-section of a pillar is equal to its working stress, it is called |
| A. | body of equal |
| B. | body of equal section |
| C. | body of equal strength |
| D. | none of these. |
| Answer» D. none of these. | |
| 3755. |
The point of contraflexture occurs in |
| A. | cantilever beams only |
| B. | continuous beams only |
| C. | over hanging beams only |
| D. | all types of beams |
| E. | both (a) and (b). |
| Answer» D. all types of beams | |
| 3756. |
The force in BD of the truss shown in below figure is : |
| A. | 500 kg compressive |
| B. | 500 kg tensile |
| C. | 1500 kg tensile |
| D. | 1500 kg compressive |
| E. | zero. |
| Answer» B. 500 kg tensile | |
| 3757. |
A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 106, the elongation of the rod will be |
| A. | 2.275 mm |
| B. | 0.2275 mm |
| C. | 0.02275 mm |
| D. | 2.02275 mm. |
| Answer» C. 0.02275 mm | |
| 3758. |
In the given below figure, the rivets with maximum stress, are : |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 3 and 4 |
| D. | 2 and 4 |
| Answer» E. | |
| 3759. |
When a rectangular beam is loaded longitudinally, shear develops on |
| A. | bottom fibre |
| B. | top fibre |
| C. | middle fibre |
| D. | every-horizontal plane. |
| Answer» E. | |
| 3760. |
The shape of the bending moment diagram over the length of a beam, carrying a uniformly increasing load, is always |
| A. | linear |
| B. | parabolic |
| C. | cubical |
| D. | circular. |
| Answer» D. circular. | |
| 3761. |
The tension coefficient of any member is |
| A. | force divided by the length |
| B. | tension divided by the length |
| C. | tension per unit area |
| D. | tension in the member. |
| Answer» C. tension per unit area | |
| 3762. |
Along the neutral axis of a simply supported beam |
| A. | fibres do not undergo strain |
| B. | fibres undergo minimum strain |
| C. | fibres undergo maximum strain |
| D. | none of these. |
| Answer» B. fibres undergo minimum strain | |
| 3763. |
The bending moment at E for the structure shown in below figure, is |
| A. | zero |
| B. | 10 Tm |
| C. | 20 Tm |
| D. | 40 Tm. |
| Answer» B. 10 Tm | |
| 3764. |
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. | <span class="root">2</span> |
| B. | <span class="root">2</span> |
| C. | <span class="root">5</span> |
| D. | <span class="root">7</span> |
| Answer» B. <span class="root">2</span> | |
| 3765. |
A member which is subjected to reversible tensile or compressive stress may fail at a stress lower than the ultimate stress of the material. This property of metal, is called |
| A. | plasticity of the metal |
| B. | elasticity of the metal |
| C. | fatigue of the metal |
| D. | workability of the metal. |
| Answer» D. workability of the metal. | |
| 3766. |
Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, under a concentrated load W at its free end, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.236-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.236-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.236-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.236-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/strength-of-materials/141-6.236-4.png"> | |
| 3767. |
For a given material, if E, C, K and m are Young's modulus, shearing modulus, bulk modulus and poisson ratio, the following relation does not hold good |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/124-6.19-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/124-6.19-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/124-6.19-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/124-6.19-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/124-6.19-5.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/strength-of-materials/124-6.19-4.png"> | |
| 3768. |
The stress at which extension of a material takes place more quickly as compared to the increase in load, is called |
| A. | elastic point |
| B. | plastic point |
| C. | breaking point |
| D. | yielding point. |
| Answer» E. | |
| 3769. |
As the elastic limit reaches, tensile strain |
| A. | increases more rapidly |
| B. | decreases more rapidly |
| C. | increases in proportion to the stress |
| D. | decreases in proportion to the stress. |
| Answer» B. decreases more rapidly | |
| 3770. |
Simple bending equation is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/127-6.66-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/127-6.66-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/127-6.66-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/127-6.66-4.png"> |
| E. | none of these. |
| Answer» D. <img src="/_files/images/civil-engineering/strength-of-materials/127-6.66-4.png"> | |
| 3771. |
Every material obeys the Hooke's law within its |
| A. | elastic limit |
| B. | plastic point |
| C. | limit of proportionality |
| D. | none of these. |
| Answer» D. none of these. | |
| 3772. |
The section modulus of a rectangular section is proportional to |
| A. | area of the section |
| B. | square of the area of the section |
| C. | product of the area and depth |
| D. | product of the area and width |
| E. | half moment of inertia of the section. |
| Answer» B. square of the area of the section | |
| 3773. |
The distance between the centres of adjacent rivets in the same row, is called |
| A. | pitch |
| B. | lap |
| C. | gauge |
| D. | staggered pitch. |
| Answer» B. lap | |
| 3774. |
Shear deflection of a cantilever of length L, cross sectional area A and shear modulus G, subjected to w/m u.d.l., is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/142-6.237-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/142-6.237-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/142-6.237-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/142-6.237-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/142-6.237-2.png"> | |
| 3775. |
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 |
| E. | none of the these. |
| Answer» E. none of the these. | |
| 3776. |
If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of |
| A. | 2 |
| B. | 1/2 |
| C. | 8 |
| D. | 1/8 |
| E. | 4 |
| Answer» E. 4 | |
| 3777. |
The property of a material by which it can be drawn to a smaller section, due to tension, is called |
| A. | plasticity |
| B. | ductility |
| C. | elasticity |
| D. | malleability. |
| Answer» C. elasticity | |
| 3778. |
The B.M. diagram of the beam shown in below figure, is |
| A. | a rectangle |
| B. | a triangle |
| C. | a trapezium |
| D. | a parabola |
| E. | a circle. |
| Answer» B. a triangle | |
| 3779. |
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 | |
| 3780. |
For a beam having fixed ends, the unknown element of the reactions, is |
| A. | horizontal components at either end |
| B. | vertical components at either end |
| C. | horizontal component at one end and vertical component at the other |
| D. | horizontal and vertical components at both the ends. |
| Answer» E. | |
| 3781. |
The slenderness ratio of a vertical column of square cross- section of 10 cm side and 500 cm long, is |
| A. | 117.2 |
| B. | 17.3 |
| C. | 173.2 |
| D. | 137.2 |
| E. | 13.72 |
| Answer» D. 137.2 | |
| 3782. |
A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the deflection of the coil is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.211-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.211-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.211-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.211-4.png"> |
| Answer» E. | |
| 3783. |
The width of a beam of uniform strength having a constant depth d length L, simply supported at the ends with a central load W is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.229-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.229-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.229-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.229-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/141-6.229-3.png"> | |
| 3784. |
A member is balanced at its end by two inclined members carrying equal forces. For equilibrium the angle between the inclined bars must be |
| A. | 3 |
| B. | 45 |
| C. | 60 |
| D. | 90 |
| E. | 120 |
| Answer» F. | |
| 3785. |
Pick up the correct assumption of the theory of simple bending |
| A. | The value of the Young's modulus is the same in tension as well as in compression |
| B. | Transverse section of a beam remains plane before and after bending |
| C. | The material of the beam is homogeneous and isotropic |
| D. | The resultant pull or thrust on transverse section of a beam is zero |
| E. | All the above. |
| Answer» F. | |
| 3786. |
The neutral axis of a beam cross-section must |
| A. | pass through the centroid of the section |
| B. | be equidistant from the top of bottom films |
| C. | be an axis of symmetry of the section |
| D. | none of these. |
| Answer» B. be equidistant from the top of bottom films | |
| 3787. |
In a solid arch, shear force acts |
| A. | vertically upwards |
| B. | along the axis of the arch |
| C. | perpendicular to the axis of arch |
| D. | tangentially to the arch |
| E. | none of these. |
| Answer» D. tangentially to the arch | |
| 3788. |
Shear force for a cantilever carrying a uniformly distributed load over its length, is |
| A. | triangle |
| B. | rectangle |
| C. | parabola |
| D. | cubic parabola. |
| Answer» B. rectangle | |
| 3789. |
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. | 2 times |
| B. | 4 times |
| C. | 8 times |
| D. | 1/2 times |
| E. | 3 times. |
| Answer» D. 1/2 times | |
| 3790. |
The under mentioned type is simple strain |
| A. | tensile strain |
| B. | compressive strain |
| C. | shear strain |
| D. | volumetric strain |
| E. | all the above. |
| Answer» F. | |
| 3791. |
The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known |
| A. | buckling factor |
| B. | slenderness ratio |
| C. | crippling factor |
| D. | none of these. |
| Answer» C. crippling factor | |
| 3792. |
Failure of riverted joints is due to |
| A. | Tearing of the plates between the rivet hole and the edge of the plate |
| B. | Tearing of plates between rivets |
| C. | Shearing of rivets |
| D. | Crushing of rivets |
| E. | All the above. |
| Answer» F. | |
| 3793. |
The moment diagram for a cantilever whose free end is subjected to a bending moment, will be a |
| A. | triangle |
| B. | rectangle |
| C. | parabola |
| D. | cubic parabola. |
| Answer» C. parabola | |
| 3794. |
To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is |
| A. | middle half rule of columns |
| B. | middle third rule of columns |
| C. | middle fourth rule of columns |
| D. | none of these. |
| Answer» D. none of these. | |
| 3795. |
For a stable frame structure, number of members required, is |
| A. | three times the number of joints minus three |
| B. | twice the number of joints minus three |
| C. | twice the number of joints minus two |
| D. | twice the number of joints minus one |
| E. | none of these. |
| Answer» C. twice the number of joints minus two | |
| 3796. |
Beams of uniform strength are preferred to those of uniform section because these are economical for |
| A. | large spans |
| B. | heavy weights |
| C. | light weights |
| D. | short spans. |
| Answer» B. heavy weights | |
| 3797. |
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. | |
| 3798. |
If Z and I are the section modulus and moment of inertia of the section, the shear force F and bending moment M at a section are related by |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.41-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.41-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.41-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.41-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/strength-of-materials/125-6.41-4.png"> | |
| 3799. |
A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is |
| A. | 1250 kg |
| B. | 125 kg |
| C. | 750 kg |
| D. | 2500 kg |
| E. | 2325 kg. |
| Answer» B. 125 kg | |
| 3800. |
The ratio of the maximum deflection of a cantilever beam with an isolated load at its free end and with a uniformly distributed load over its entire length, is |
| A. | 1 |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.72-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.73-1.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.73-2.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.73-3.png"> |
| Answer» E. <img src="/_files/images/civil-engineering/strength-of-materials/128-6.73-3.png"> | |