McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: General Knowledge (GK) , Union Public Service Commission (UPSC) , Indian Administrative Service (IAS) , Staff Selection Commission (SSC) .
Chapters
| 101. |
The Helium atoms that have lost two electrons are called ________? |
| A. | Alpha rays |
| B. | Beta rays |
| C. | Gamma rays |
| D. | None of the above |
| Answer» A. Alpha rays | |
| 102. |
What is the approximate height of a Geostationary satellite ? |
| A. | 981 km |
| B. | 15000 kms |
| C. | 35000 kms |
| D. | 5000 kms |
| Answer» C. 35000 kms | |
| 103. |
The inability of a body to change its state of rest or its uniform motion in a straight line is called as ________? |
| A. | Mass |
| B. | weight |
| C. | Inertia |
| D. | Friction |
| Answer» C. Inertia | |
| 104. |
Ohm is a unit of measuring _________? |
| A. | Resistance |
| B. | Voltage |
| C. | Current |
| D. | None of the above |
| Answer» A. Resistance | |
| 105. |
Equal volumes of all gases contain equal number of molecules under similar conditions of temperature and pressure. Which law says this ? |
| A. | Boyle‘s law |
| B. | Charles law |
| C. | Avogadro‘s Law |
| D. | Bhor‘s law |
| Answer» C. Avogadro‘s Law | |
| 106. |
Which among the following is a property of Insulator? |
| A. | The electrons of the outer orbits are loosely bound to the nucleus , however can not flow through them |
| B. | The electrons of the outer orbits are tightly bound to the nucleus and can not flow through them |
| C. | The electrons of the outer orbits are loosely bound to the nucleus , and can flow through them |
| D. | None of the above |
| Answer» B. The electrons of the outer orbits are tightly bound to the nucleus and can not flow through them | |
| 107. |
Which among the following is true about latent heat ? |
| A. | It causes change in temperature as well as change in state or phase |
| B. | It causes change in temperature only |
| C. | It causes change in state or phase but not in temperature |
| D. | It causes change in Pressure |
| Answer» C. It causes change in state or phase but not in temperature | |
| 108. |
When light from some sources enters to the earth‘s atmosphere, it gets scattered. Which among the following is a reason behind scattering? |
| A. | Various wavelengths of light |
| B. | dust, smoke and gas molecules |
| C. | atmospheric pressure |
| D. | None of the above |
| Answer» B. dust, smoke and gas molecules | |
| 109. |
Which among the following is true about Total Internal Reflection? |
| A. | A ray passing from rarer to denser medium and not able to pass to denser medium at an angle greater than critical angle |
| B. | A ray passing from denser to rarer medium and not able to pass to rarer medium at an angle greater than critical angle |
| C. | A ray passing from either denser to rarer medium or rarer to denser medium and not able to pass any medium at an angle smaller than critical angle |
| D. | None of the above |
| Answer» B. A ray passing from denser to rarer medium and not able to pass to rarer medium at an angle greater than critical angle | |
| 110. |
Which among the following principle is used by Bats? |
| A. | RADAR (Radio Detective & Ranging |
| B. | SONAR (Sound Navigation & Ranging |
| C. | law of reflection |
| D. | law of diffraction |
| Answer» B. SONAR (Sound Navigation & Ranging | |
| 111. |
Which among the following is true regarding Sound Waves? |
| A. | They are longitudinal waves and material medium is not required for their propagation |
| B. | They are transverse waves and material medium is required for their propagation |
| C. | They are longitudinal waves and material medium is required for their propagation |
| D. | They are transverse waves and material medium is not required for their propagation |
| Answer» C. They are longitudinal waves and material medium is required for their propagation | |
| 112. |
Which among the following is true about conduction, convection and radiation mode of transfer of heat? |
| A. | A Medium is required for conduction but not required for convection and radiation |
| B. | A medium is required for conduction, convection and radiation |
| C. | A medium is required for conduction and convection but not required for radiation |
| D. | A medium is not required for conduction and convectio, radiation |
| Answer» C. A medium is required for conduction and convection but not required for radiation | |
| 113. |
The ideal fluid which is a hypothetical fluid should contain _______? |
| A. | Zero Viscosity Only |
| B. | Zero Compressibility Only |
| C. | Zero Viscosity & Zero Compressibility |
| D. | None of the above |
| Answer» C. Zero Viscosity & Zero Compressibility | |
| 114. |
Which among the following defines cohesive force? |
| A. | the force of attraction acting between the molecules of same material |
| B. | the force of attraction acting between the molecules of different material |
| C. | the force of attraction acting between the atoms of same material |
| D. | None of the above |
| Answer» A. the force of attraction acting between the molecules of same material | |
| 115. |
Which of the following term denotes the internal reaction force per unit area developed as a result of applied external force ? |
| A. | Stress |
| B. | Friction |
| C. | Moment of Inertia |
| D. | tension |
| Answer» A. Stress | |
| 116. |
What is the mean value of g at earth‘s surface? |
| A. | 0.98 meter per second |
| B. | 9.8 meter per second |
| C. | 9.8 meter per second square |
| D. | 0.98 meter per second square |
| Answer» C. 9.8 meter per second square | |
| 117. |
The value of acceleration due to gravity is __________? |
| A. | Minimum at equator and maximum at poles |
| B. | maximum at equator and minimum at poles |
| C. | equal at poles and equator |
| D. | None of the above |
| Answer» A. Minimum at equator and maximum at poles | |
| 118. |
Which among the following defines gravitational mass? |
| A. | Ratio of weight of a body and acceleration due to gravity |
| B. | Ratio of Acceleration due to gravity and weight of a body |
| C. | matter contained in a body |
| D. | None of the above |
| Answer» A. Ratio of weight of a body and acceleration due to gravity | |
| 119. |
The scientists have discovered that Milky Way is having two components, the disc and spherical. What may be the central object of Milky Way? |
| A. | A Black Hole |
| B. | A Neuron star |
| C. | Vaccum |
| D. | A Large Magellanic Cloud |
| Answer» A. A Black Hole | |
| 120. |
Which among the following kinds of glass is used generally in making of the Bullet proof screens? |
| A. | Pyrex glass |
| B. | Jena glass |
| C. | Reinforced Glass |
| D. | Flint Glass |
| Answer» C. Reinforced Glass | |
| 121. |
Which among the following would be most commonly affected, if the filament of a electric Bulb is not uniform? |
| A. | Light |
| B. | Life |
| C. | Resistance |
| D. | None of the above |
| Answer» B. Life | |
| 122. |
Calorie of Energy is equal to _________? |
| A. | .42 joule |
| B. | 4.2 joule |
| C. | 42 joule |
| D. | 0.042 Joule |
| Answer» B. 4.2 joule | |
| 123. |
A pendulum is taken to Moon , its time period will___________? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Either increase or decrease |
| Answer» A. Increases | |
| 124. |
Knot is a unit of _________? |
| A. | Speed |
| B. | Distance |
| C. | Deapth |
| D. | Accelration |
| Answer» A. Speed | |
| 125. |
One Nautical Mile is equivalent to how many meters? |
| A. | 1552 |
| B. | 1652 |
| C. | 1752 |
| D. | 1852 |
| Answer» D. 1852 | |
| 126. |
In which year, Government of India launched the Integrated Guided Missile Development Program? |
| A. | 1981 |
| B. | 1983 |
| C. | 1990 |
| D. | 1999 |
| Answer» B. 1983 | |
| 127. |
What is the use of Venturimeter? |
| A. | to measure subdivisions of scale |
| B. | to measure wavelength of radio wave |
| C. | To measure friction |
| D. | to measure rate of flow of fluids |
| Answer» D. to measure rate of flow of fluids | |
| 128. |
Which among the following is measured using a Vernier Calliper? |
| A. | Dimensions |
| B. | Time |
| C. | Sound |
| D. | Temperature |
| Answer» A. Dimensions | |
| 129. |
Which among the following is used to listen and record underwater sounds? |
| A. | Altimeter |
| B. | SONAR |
| C. | Hydrophone |
| D. | RADAR |
| Answer» C. Hydrophone | |
| 130. |
Consider the following:
|
| A. | 1 & 2 |
| B. | 2 & 3 |
| C. | Only 2 |
| D. | Only 3 |
| Answer» D. Only 3 | |
| 131. |
Any moving object on earth finally comes to rest due to which among the following? |
| A. | Gravity |
| B. | Friction |
| C. | Inertia |
| D. | Motion |
| Answer» B. Friction | |
| 132. |
When Ozone is heated its volume will…. ? |
| A. | increases |
| B. | decreases |
| C. | remains unchanged |
| D. | First Increase, then decrease |
| Answer» C. remains unchanged | |
| 133. |
Consider the following:
|
| A. | Stage I, Stage II, Stage III |
| B. | Stage II, Stage I, Stage III |
| C. | Stage III, Stage II, Stage I |
| D. | Stage II, Stage III, Stage I |
| Answer» A. Stage I, Stage II, Stage III | |
| 134. |
Which among the following is the site of Prototype Fast Breeder Reactor (PFBR) in India? |
| A. | Kudankulam |
| B. | Kalpakkam |
| C. | Narora |
| D. | Rawatbhata |
| Answer» B. Kalpakkam | |
| 135. |
Chandrashekhar Limit, postulated by Dr S. Chandrashekhar posts a limit of mass of which among the following? |
| A. | Neutron Star |
| B. | White Dwarf |
| C. | Steller Black Hole |
| D. | Young stellar object |
| Answer» B. White Dwarf | |
| 136. |
India‘s first Nobel Prize for Physics was claimed in 1930 by the renowned physicist Sir C.V. Raman for his work in which among the following fields? |
| A. | Particle Physics |
| B. | Optics |
| C. | Thermodynamics |
| D. | Quantum Mechanics |
| Answer» B. Optics | |
| 137. |
What is the name of India‘s first nuclear reactor ? |
| A. | Cirius |
| B. | Apsara |
| C. | Dhruva |
| D. | Kamini |
| Answer» B. Apsara | |
| 138. |
Which among the following is NOT taken into account while choosing an orbit of the Satellite? |
| A. | Earth‘s radius |
| B. | Gravitational force of the earth |
| C. | Mass of the satellite |
| D. | Distance from Earth |
| Answer» C. Mass of the satellite | |
| 139. |
Hydraulic Brakes work on which principal? |
| A. | Pascal‘s Principle |
| B. | Archimedes Principle |
| C. | Newton‘s Laws |
| D. | Casini‘s Laws |
| Answer» A. Pascal‘s Principle | |
| 140. |
Zero point energy is the lowest possible energy that a quantum mechanical physical system may have. ―Who among the following proposed this concept? |
| A. | Max Planck |
| B. | Albert Einstein and Otto Stern |
| C. | Hendrik B. G. Casimir |
| D. | Gribbin, John |
| Answer» B. Albert Einstein and Otto Stern | |
| 141. |
Consider the following:
|
| A. | 1 |
| B. | 1,2 |
| C. | 1,2,3 |
| D. | 2,3 |
| Answer» C. 1,2,3 | |
| 142. |
Which among the following lens is used to correct Presbyopia? |
| A. | Convex |
| B. | Concave |
| C. | Bifocal |
| D. | Cylindracal |
| Answer» C. Bifocal | |
| 143. |
Which among the following kinds of lenses are used to treat Astigmatism? |
| A. | Convex Lens |
| B. | Concave Lens |
| C. | Bifocal Lens |
| D. | Cylindrical |
| Answer» D. Cylindrical | |
| 144. |
Kakrapar Atomic Power Station (KAPS-1) is located in which among the following states? |
| A. | Maharastra |
| B. | Gujarath |
| C. | Goa |
| D. | Karnataka |
| Answer» B. Gujarath | |
| 145. |
If in a closed room , the door of a refrigerator is kept open for some time , the temperature of room will ? |
| A. | Increase |
| B. | Decrease |
| C. | Remains same |
| D. | First decrease then become stable |
| Answer» A. Increase | |
| 146. |
First steam-powered vehicle was built by? |
| A. | Richard Trevithick |
| B. | Nicolas-Joseph Cugnot |
| C. | Don Walsh |
| D. | Janice Meek |
| Answer» B. Nicolas-Joseph Cugnot | |
| 147. |
Which among the following is a source of Atomic Energy ? |
| A. | Iron |
| B. | Uranium |
| C. | Silver |
| D. | Platinum |
| Answer» B. Uranium | |
| 148. |
Which among the following types of glasses contains Cerium and other rare earths and has a high absorption of ultraviolet rays? |
| A. | Crookes Glass |
| B. | Pyrex Glass |
| C. | Flint Glass |
| D. | Crown Glass |
| Answer» A. Crookes Glass | |
| 149. |
CDRI is among the thirty eight laboratories that are functioning under the aegis of the council of scientific and Industrial Research (CSIR) of India. Where is located CDRI (Central Drug Research Institute)? |
| A. | Bhopal |
| B. | Lucknow |
| C. | Kolkata |
| D. | Bangalore |
| Answer» B. Lucknow | |
| 150. |
Who among the following is the chairman of Council of Scientific and Industrial Research (CSIR)? |
| A. | Prime Minister of India |
| B. | Minister of Science & Technology |
| C. | Secretary, Department of Technology |
| D. | None of them |
| Answer» A. Prime Minister of India | |
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