MCQOPTIONS
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MCQOPTIONS
This section includes 312 Mcqs, each offering curated multiple-choice questions to sharpen your Banking And Financial Awareness knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
An n-p-n transistor conducts when |
| A. | both collector and emitter are negative with respect to the base |
| B. | both collector and emitter are positive with respect to the base |
| C. | collector is positive and emitter is negative with respect to the base |
| D. | collector is positive and emitter is at same potential as the base |
| Answer» D. collector is positive and emitter is at same potential as the base | |
| 52. |
A and B are two wires. The radius of A is twice that of B. They are stretched by the same load. Then the stress on B is |
| A. | equal to that on A |
| B. | four times that on A |
| C. | two times that on A |
| D. | half that on A |
| Answer» C. two times that on A | |
| 53. |
Hydraulic lift is based on the principle of |
| A. | Pascal's law |
| B. | Bernoulli's theorem |
| C. | Tori celli's theorem |
| D. | Stoke's law |
| Answer» B. Bernoulli's theorem | |
| 54. |
The bulk modulus for an incompressible liquid is |
| A. | zero |
| B. | unity |
| C. | infinity |
| D. | between 0 and 1 |
| Answer» D. between 0 and 1 | |
| 55. |
Why the dam of water reservoir is thick at the bottom? |
| A. | Quantity of water increases with depth |
| B. | Density of water increases with depth |
| C. | Pressure of water increases with depth |
| D. | Temperature of water increases with depth |
| Answer» D. Temperature of water increases with depth | |
| 56. |
The action of a nib split at the top is explained by |
| A. | gravity flow |
| B. | diffusion of fluid |
| C. | capillary action |
| D. | osmosis of liquid |
| Answer» D. osmosis of liquid | |
| 57. |
A tank filled with water has a hole at a certain height from its bottom. The volume of water emerging out per second from the hole does not depend on |
| A. | the height of the level of liquid above the hole. |
| B. | the area of a hole. |
| C. | the density of a liquid. |
| D. | the acceleration due to gravity. |
| Answer» D. the acceleration due to gravity. | |
| 58. |
Paint-gun is based on |
| A. | Bernoulli's theorem |
| B. | Archimedes' principle |
| C. | Boyle's law |
| D. | Newton 'slaws of motion |
| Answer» B. Archimedes' principle | |
| 59. |
Pressure at a point inside a liquid does not depend on |
| A. | the depth of the point below the surface of the liquid |
| B. | the nature of the liquid |
| C. | the acceleration due to gravity at that point |
| D. | the shape of the containing vessel |
| Answer» E. | |
| 60. |
Water is flowing through a horizontal pipe line having a restriction. Then |
| A. | pressure will be the same throughout the length of the pipe. |
| B. | pressure will be greater at the restriction. |
| C. | pressure will be greater in the wider portion. |
| D. | None of these |
| Answer» D. None of these | |
| 61. |
Ideal liquid is that liquid |
| A. | whose density is zero |
| B. | whose viscosity is zero |
| C. | which is compressible |
| D. | None of these |
| Answer» C. which is compressible | |
| 62. |
Working of atomizer is based on |
| A. | Boyle's law |
| B. | Bernoulli's law |
| C. | Newton's laws of motion |
| D. | Archimedes' principle |
| Answer» C. Newton's laws of motion | |
| 63. |
Elastomers are the materials which |
| A. | are not elastic at all |
| B. | have very small elastic range |
| C. | do not obey Hooke's law |
| D. | None of these |
| Answer» D. None of these | |
| 64. |
The load verses elongation graph for four wires is shown. The thinnest wire is |
| A. | a |
| B. | b |
| C. | c |
| D. | d |
| Answer» C. c | |
| 65. |
A stretched rubber has |
| A. | increased kinetic energy |
| B. | increased potential energy |
| C. | decreased kinetic energy |
| D. | decreased potential energy |
| Answer» C. decreased kinetic energy | |
| 66. |
Which of the following materials is most elastic? |
| A. | Rubber |
| B. | Lead |
| C. | Wood |
| D. | Steel |
| Answer» E. | |
| 67. |
Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because |
| A. | force of surface tension is equal and opposite to the force of gravity |
| B. | force of surface tension predominates the force of gravity |
| C. | force of gravity predominates the force of surface tension |
| D. | force of gravity and force of surface tension act in the same direction and are equal |
| Answer» C. force of gravity predominates the force of surface tension | |
| 68. |
With the increase of temperature, the surface tension of the liquid |
| A. | may increase or decrease depending on the density of liquid |
| B. | remains the same |
| C. | always increases |
| D. | always decreases |
| Answer» E. | |
| 69. |
Two soap bubbles are held by a tube. What will happen? |
| A. | Air will travel from bigger to smaller bubble |
| B. | Air will not travel |
| C. | Air will travel through tube |
| D. | Nothing can be said |
| Answer» B. Air will not travel | |
| 70. |
The rain drops falling from the sky neither injure us nor make holes on the ground because they move with |
| A. | constant acceleration |
| B. | variable acceleration |
| C. | variable speed |
| D. | constant terminal velocity |
| Answer» C. variable speed | |
| 71. |
The lift of an air plane is based on |
| A. | Torricelli's theorem |
| B. | Bernoulli's theorem |
| C. | law of gravitation |
| D. | conservation of linear momentum |
| Answer» C. law of gravitation | |
| 72. |
A water tank of height 10m, completely filled with water is placed on a level ground. It has two holes one at 3 m and the other at 7 m from its base. The water ejecting from |
| A. | both the holes will fall at the same spot |
| B. | upper hole will fall farther than that from the lower hole |
| C. | upper hole will fall closer than that from the lower hole |
| D. | more information is required |
| Answer» B. upper hole will fall farther than that from the lower hole | |
| 73. |
Power of accommodation of eye implies |
| A. | control intensity |
| B. | prevent internal reflection of light |
| C. | change of focal length of eye lens |
| D. | All of the above |
| Answer» D. All of the above | |
| 74. |
The acronym for LASER is |
| A. | Light Amplification by Stimulated Emission of Radiation |
| B. | Low Amplitude Stimulated Emission of Radiation |
| C. | Low Amplitude Short Energy Radiation |
| D. | Light Amplification by Short Energy Radiation |
| Answer» B. Low Amplitude Stimulated Emission of Radiation | |
| 75. |
For which wavelength of light is our eye most sensitive |
| A. | 3.00 nm |
| B. | 555 nm |
| C. | 200 nm |
| D. | 800 nm |
| Answer» C. 200 nm | |
| 76. |
The fine powder of a coloured glass is seen as |
| A. | coloured |
| B. | white |
| C. | black |
| D. | that of the glass colour |
| Answer» C. black | |
| 77. |
A watch shows times as 3 : 25 when seen through a mirror, time appeared will be |
| A. | 8:35 |
| B. | 9:35 |
| C. | 7:35 |
| D. | 8:25 |
| Answer» B. 9:35 | |
| 78. |
When a CD (compact disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of |
| A. | reflection and diffraction |
| B. | reflection and transmission |
| C. | diffraction and transmission |
| D. | refraction, diffraction and transmission |
| Answer» E. | |
| 79. |
A child is standing in front of a magic mirror. She finds the image other head bigger, the middle portion of her body of the same size and that of the legs smaller. The following is the order of combinations for the magic mirror from the top. |
| A. | Plane, convex and concave |
| B. | Convex, concave and plane |
| C. | Concave, plane and convex |
| D. | Convex, plane and concave |
| Answer» D. Convex, plane and concave | |
| 80. |
Total internal reflection can take place only if |
| A. | light goes from optically rarer medium to optically denser medium |
| B. | light goes from optically denser medium to rarer medium |
| C. | the refractive indices of the two media are close to different |
| D. | the refractive indices of the two media are widely different |
| Answer» C. the refractive indices of the two media are close to different | |
| 81. |
Butter paper is an example for............. object. |
| A. | a transparent |
| B. | a translucent |
| C. | an opaque |
| D. | aluminous |
| Answer» C. an opaque | |
| 82. |
The ability of an optical instrument to show the images of two adjacent point objects as separate is called |
| A. | dispersive power |
| B. | magnifying power |
| C. | resolving power |
| D. | None of these |
| Answer» D. None of these | |
| 83. |
Yellow colour light is used as fog light because yellow colour |
| A. | light is most scattered by fog |
| B. | has the longest wavelength among all colours |
| C. | has the longest wavelength among all colours except red and orange but the red colour is already used for brake light and stop light whereas orange colour is avoided due to its similarity with red |
| D. | has the shortest wavelength among all colours |
| Answer» D. has the shortest wavelength among all colours | |
| 84. |
'The stars seem to be higher on the sky than they actually are'. This can be explained by |
| A. | atmospheric refraction |
| B. | dispersion of light |
| C. | total internal reflection |
| D. | diffraction of light |
| Answer» B. dispersion of light | |
| 85. |
A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behaves like a |
| A. | converging lens |
| B. | diverging lens |
| C. | piano-converging lens |
| D. | piano-diverging lens |
| Answer» C. piano-converging lens | |
| 86. |
The sun is seen before the actual sunrise because of |
| A. | reflection |
| B. | refraction |
| C. | scattering of light |
| D. | rectilinear propagation of light |
| Answer» C. scattering of light | |
| 87. |
A coin in a beaker filled with water appears raised. This phenomenon occurs because of the property of |
| A. | reflection of light |
| B. | refraction of light |
| C. | total internal reflection of light |
| D. | interference of light |
| Answer» C. total internal reflection of light | |
| 88. |
Twinkling of stars is on account of |
| A. | large distance of stars and storms in air |
| B. | small size of stars |
| C. | large size of stars |
| D. | large distance of stars and fluctuations in the density of air |
| Answer» E. | |
| 89. |
Consider telecommunication through optical fibres. Which of the following statement is not true? |
| A. | Optical fibres can be of graded refractive index |
| B. | Optical fibres have extremely low transmission loss |
| C. | Optical fibres are subject to electromagnetic interference from outside |
| D. | Optical fibres may have homogeneous core with a suitable cladding |
| Answer» D. Optical fibres may have homogeneous core with a suitable cladding | |
| 90. |
Dispersion is the term used to describe |
| A. | the propagation of light in straight lines |
| B. | the splitting of a beam of light into component colours |
| C. | the bending of a beam of light when it strikes a mirror |
| D. | the change that takes place in white light after passage through red glass |
| Answer» C. the bending of a beam of light when it strikes a mirror | |
| 91. |
For seeing a cricket match, we prefer binoculars to the terrestrial telescope, because. |
| A. | binoculars give three-dimensional view |
| B. | terrestrial telescope gives inverted image |
| C. | to avoid chromatic aberration |
| D. | to have larger magnification |
| Answer» B. terrestrial telescope gives inverted image | |
| 92. |
A person cannot see objects clearly which are nearer than 75 cm from his eyes, the disease he is suffering from is |
| A. | astigmatism |
| B. | myopia |
| C. | hypermetropia |
| D. | presbyopia |
| Answer» D. presbyopia | |
| 93. |
At sunrise or at sunset the sun appears to be reddish while at mid-day it looks white. This is because |
| A. | scattering due to dust particles and air molecules causes this phenomenon |
| B. | the sun is cooler at sunrise or at sunset |
| C. | refraction causes this phenomenon |
| D. | diffraction sends red rays to the earth at these times |
| Answer» B. the sun is cooler at sunrise or at sunset | |
| 94. |
The splitting of white light into seven colours on passing through a glass prism is due to |
| A. | refraction |
| B. | reflection |
| C. | interference |
| D. | diffraction |
| Answer» B. reflection | |
| 95. |
In the visible spectrum the colour having the shortest wavelength is |
| A. | green |
| B. | red |
| C. | violet |
| D. | blue |
| Answer» D. blue | |
| 96. |
In lateral inversion |
| A. | right side of the object will be right side of the image. |
| B. | left side of the object will be left side of the image. |
| C. | upside of the object will be down side of the object. |
| D. | right side of the object will be left side of the image. |
| Answer» E. | |
| 97. |
When the distance between the object and the plane mirror increases |
| A. | the image remains same |
| B. | the size of the image will become less than the size of the object |
| C. | the distance between the image and the plane mirror increases |
| D. | the distance between the image and the plane mirror decreases |
| Answer» D. the distance between the image and the plane mirror decreases | |
| 98. |
The number of significant figures in 0.00060 m is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 99. |
\[[M{{L}^{-2}}{{T}^{-2}}]\] are dimensions of |
| A. | force |
| B. | moment of force |
| C. | momentum |
| D. | power |
| Answer» C. momentum | |
| 100. |
Dimensions of impulse are |
| A. | \[[ML{{T}^{-1}}]\] |
| B. | \[[ML{{T}^{-2}}]\] |
| C. | \[[M{{T}^{-2}}]\] |
| D. | \[[M{{L}^{-1}}{{T}^{-3}}]\] |
| Answer» B. \[[ML{{T}^{-2}}]\] | |