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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.
| 3901. |
Ties are load carrying members of a frame, which are subjected to |
| A. | transverse loads |
| B. | axial tension loads |
| C. | axial compressive loads |
| D. | torsional loads. |
| Answer» C. axial compressive loads | |
| 3902. |
At either end of a plane frame, maximum number of possible transverse shear forces, are |
| A. | one |
| B. | two |
| C. | three |
| D. | four |
| E. | zero. |
| Answer» B. two | |
| 3903. |
If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is, |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-4.png"> |
| Answer» E. | |
| 3904. |
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 | |
| 3905. |
When two plates butt together and are riveted with two cover plates with two rows of rivets, the joint is known as |
| A. | lap joint |
| B. | butt join |
| C. | single riveted single cover butt joint |
| D. | double riveted double cover butt joint. |
| Answer» E. | |
| 3906. |
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. | |
| 3907. |
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 |
| E. | none of these. |
| Answer» C. both the beams are equally strong | |
| 3908. |
Most economical section of a triangular channel, is |
| A. | equilateral triangle |
| B. | right angled triangle |
| C. | isosceles triangle with 45 vertex angle |
| D. | right angled triangle with equal sides. |
| Answer» E. | |
| 3909. |
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 |
| E. | 18 cm. |
| Answer» B. 12 cm | |
| 3910. |
In an open tube, free surface of mercury remains |
| A. | horizontal |
| B. | curved upwards |
| C. | curved downwards |
| D. | none of these. |
| Answer» D. none of these. | |
| 3911. |
The equation for the viscosity, is suggested |
| A. | Bernoulli |
| B. | Newton |
| C. | Chezy |
| D. | Bezin |
| E. | Helmholtz. |
| Answer» C. Chezy | |
| 3912. |
If two tensile forces mutually perpendicular act on a rectangular parallelopiped bar are equal, the resulting elongation of the pipe, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.39-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.39-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.39-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.39-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.39-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/125-6.39-2.png"> | |
| 3913. |
A beam is said to be of uniform strength, if |
| A. | B.M. is same throughout the beam |
| B. | shear stress is same throughout the beam |
| C. | deflection is same throughout the beam |
| D. | bending stress is same at every section along its longitudinal axis. |
| Answer» E. | |
| 3914. |
The moment diagram for a cantilever carrying linearly varying load from zero at its free end and to maximum at the fixed end will be a |
| A. | triangle |
| B. | rectangle |
| C. | parabola |
| D. | cubic parabola. |
| Answer» E. | |
| 3915. |
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. | |
| 3916. |
Atmospheric pressure is equal to water column head of |
| A. | 9.81 m |
| B. | 5.0 m |
| C. | 10.30 m |
| D. | 7.5 m. |
| Answer» D. 7.5 m. | |
| 3917. |
Shear stress is directly proportional to |
| A. | the velocity |
| B. | the shear strain |
| C. | the viscosity |
| D. | the velocity. |
| Answer» C. the viscosity | |
| 3918. |
Piezometers are used to measure |
| A. | pressure in water channels, pipes etc. |
| B. | difference in pressure at two points |
| C. | atmospheric pressure |
| D. | very low pressure. |
| Answer» E. | |
| 3919. |
The value of momentum correction factor ( ) for a laminar flow through a circular pipe, is |
| A. | 1/2 |
| B. | 2/3 |
| C. | 3/4 |
| D. | 4/3 |
| E. | 3/2 |
| Answer» E. 3/2 | |
| 3920. |
Manometers are used to measure |
| A. | pressure in water channels, pipes etc. |
| B. | difference in pressure at two points |
| C. | atmospheric pressure |
| D. | very low pressure. |
| Answer» B. difference in pressure at two points | |
| 3921. |
To avoid an interruption in the flow of a syphon, an air vessel is provided |
| A. | at the inlet |
| B. | at the outlet |
| C. | at the summit |
| D. | at any point between intet and outlet. |
| Answer» D. at any point between intet and outlet. | |
| 3922. |
A non-uniform steady flow is through |
| A. | a long tube at a decreasing rate |
| B. | an expanding tube at constant rate |
| C. | an expanding tube at increasing rate |
| D. | a long pipe at increasing rate. |
| Answer» C. an expanding tube at increasing rate | |
| 3923. |
An ideal fluid is |
| A. | incompressible |
| B. | compressible |
| C. | compressible and non-viscous |
| D. | slightly affected by surface torque. |
| Answer» D. slightly affected by surface torque. | |
| 3924. |
The equivalent axial load may be defined as the load which produces a stress equal to |
| A. | maximum stress produced by the eccentric load |
| B. | maximum stressed fibre |
| C. | bending stress |
| D. | none of these. |
| Answer» B. maximum stressed fibre | |
| 3925. |
The specific weight of water is 1000 kg/m3 |
| A. | at normal pressure of 760 mm |
| B. | at 4 C temperature |
| C. | at mean sea level |
| D. | all the above. |
| Answer» E. | |
| 3926. |
The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/133-6.146-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/133-6.146-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/133-6.146-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/133-6.146-4.png"> |
| E. | none of these. |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/133-6.146-2.png"> | |
| 3927. |
The maximum bending moment due to a moving load on a simply supported beam, occurs |
| A. | at the mid span |
| B. | at the supports |
| C. | under the load |
| D. | anywhere on the beam |
| E. | none of these. |
| Answer» D. anywhere on the beam | |
| 3928. |
Molecules of fluids get attracted due to |
| A. | capillarity action |
| B. | surface tension |
| C. | adhesion |
| D. | cohesion |
| E. | none of these. |
| Answer» D. cohesion | |
| 3929. |
Cappoletti weir is a |
| A. | rectangular weir whose length is kept 3 times the height of the water above sill |
| B. | triangular weir whose notch angle is 90 |
| C. | trapezoidal weir, whose sides slope 1 horizontal to 2 verticals |
| D. | a combination of rectangular and triangular weirs. |
| Answer» D. a combination of rectangular and triangular weirs. | |
| 3930. |
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. | |
| 3931. |
If the forces are due to inertia and gravity, and frictional resistance plays only a minor role, the design of the channels is made by comparing |
| A. | Reynold number |
| B. | Froude number |
| C. | Weber number |
| D. | Mach number. |
| Answer» C. Weber number | |
| 3932. |
In a centrifugual pump casing, the flow of water leaving the impeller, is |
| A. | rectilinear flow |
| B. | radial flow |
| C. | free vortex motion |
| D. | forced vertex. |
| Answer» D. forced vertex. | |
| 3933. |
For the most economical trapezoidal section of a channel with regards to discharge, the required condition, is |
| A. | half of top width = sloping side |
| B. | hydraulic depth = half the depth |
| C. | <img src="/_files/images/civil-engineering/hydraulics/155-7.182-1.png"> |
| D. | perpendiculars drawn from the centre of the top width on to the bottom sloping side, are all equal |
| E. | all the above. |
| Answer» F. | |
| 3934. |
On an inclined plane, centre of pressure is located |
| A. | at the centroid |
| B. | above the centroid |
| C. | below the centroid |
| D. | anywhere. |
| Answer» D. anywhere. | |
| 3935. |
Back water curve is caused if |
| A. | friction head loss is more than the bed slope |
| B. | pressure is due to weir in the channel |
| C. | there is an increase in width of the channel |
| D. | none of these. |
| Answer» C. there is an increase in width of the channel | |
| 3936. |
A water tank partially filled with water is being carried on a truck moving with a constant horizontal acceleration. The level of the water |
| A. | rises on the front side of the tank |
| B. | falls on the back side of the tank |
| C. | remains the same at both sides of the tank |
| D. | rises on the back side and falls on the front side |
| E. | none of these. |
| Answer» E. none of these. | |
| 3937. |
Power transmitted through a pipe is maximum when friction head loss, is |
| A. | one-half of the total head supplied |
| B. | one-third of the total head supplied |
| C. | one-fouth of the total head supplied |
| D. | equal to the total head supplied. |
| Answer» C. one-fouth of the total head supplied | |
| 3938. |
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 |
| E. | none of these. |
| Answer» E. none of these. | |
| 3939. |
The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called |
| A. | Euler number |
| B. | Frode number |
| C. | Reynold number |
| D. | Weber number. |
| Answer» C. Reynold number | |
| 3940. |
Rise of a Jack arch is kept about |
| A. | 1/2 to 1/3 of the span |
| B. | 1/3 to 1/4 of the span |
| C. | 1/4 to 1/8 of the span |
| D. | 1/8 to 1/12 of the span. |
| Answer» E. | |
| 3941. |
The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-2.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/132-6.125-1.png"> |
| Answer» C. 3 | |
| 3942. |
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. | |
| 3943. |
If a member is subjected to a tensile force P, having its normal cross-section A, the resulting shear stress in an oblique plane inclined at an angle to its transverse plane, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-3.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-4.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-2.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.37-1.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-4.png"> | |
| 3944. |
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. | |
| 3945. |
In a continuous bending moment curve the point where it changes sign, is called |
| A. | point of inflexion |
| B. | point of contraflexture |
| C. | point of virtual hinge |
| D. | all the above. |
| Answer» E. | |
| 3946. |
If the stress produced by a prismatic bar is equal to the working stress, the area of the cross-section of the prismatic bar, becomes |
| A. | zero |
| B. | infinite |
| C. | maximum |
| D. | minimum. |
| Answer» C. maximum | |
| 3947. |
The maximum compressive stress at the top of a beam is 1600 kg/cm2 and the corresponding tensile stress at its bottom is 400 kg/cm2 . If the depth of the beam is 10 cm, the neutral axis from the top, is |
| A. | 2 cm |
| B. | 4 cm |
| C. | 6 cm |
| D. | 8 cm |
| E. | 10 cm. |
| Answer» E. 10 cm. | |
| 3948. |
If the length of a cantilever carrying an isolated load at its free end is doubled, the deflection of the free end will increase by |
| A. | 8 |
| B. | 1/8 |
| C. | 1/3 |
| D. | 2 |
| E. | 3 |
| Answer» B. 1/8 | |
| 3949. |
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 | |
| 3950. |
If p is the internal pressure in a thin cylinder of diameter d and thickness t, the developed hoop stress, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.163-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.163-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.163-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.163-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.163-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/135-6.163-2.png"> | |