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
| 51. |
Who was the first scientist to be awarded two Nobel Prizes? |
| A. | Linus Pauling |
| B. | Frederick Sanger |
| C. | Marie Curie |
| D. | John Bardeen |
| Answer» C. Marie Curie | |
| 52. |
A small quantity of water is placed in a small cavity made in a block of Ice at 0 degree centigrade. Which of the following will happen? |
| A. | the temperature of water will become zero and it will freeze |
| B. | the temperature of water will become zero but it will not freeze |
| C. | the temperature of the water will become zero and it will come out of the cavity |
| D. | the temperature of the water will become zero and ice will melt to merge with water |
| Answer» B. the temperature of water will become zero but it will not freeze | |
| 53. |
Ultrasound which is upper limit of human hearing is characterized by which of the following frequencies? |
| A. | Above 20 KHz |
| B. | Above 200 KHz |
| C. | Above 2 KHz |
| D. | Below 20 KHz |
| Answer» A. Above 20 KHz | |
| 54. |
What is the normal temperature of human being on Kelvin scale? |
| A. | 290 |
| B. | 300 |
| C. | 310 |
| D. | 320 |
| Answer» C. 310 | |
| 55. |
Which among the following is known as first electronic amplification device? |
| A. | Diode |
| B. | Triode Vaccum Tubes |
| C. | Vacuum Tubes |
| D. | bipolar transistors |
| Answer» B. Triode Vaccum Tubes | |
| 56. |
Which among the following temperature scale is based upon absolute zero? |
| A. | Celsius |
| B. | Fahrenheit |
| C. | Kelvin |
| D. | Rankine |
| Answer» C. Kelvin | |
| 57. |
Which of the following is an instrument for measuring electric charge or electrical potential difference? |
| A. | Ammeter |
| B. | Voltmeter |
| C. | Electrometer |
| D. | ohmmeter |
| Answer» C. Electrometer | |
| 58. |
Edwin Howard Armstrong was an inventor of which of the following technologies? |
| A. | Television |
| B. | Compact Discs |
| C. | FM Radio |
| D. | Broadband |
| Answer» C. FM Radio | |
| 59. |
Parallax of one arc second‖ is a unit of which of the following? |
| A. | Time |
| B. | Volume |
| C. | Length |
| D. | Speed |
| Answer» C. Length | |
| 60. |
Which among the following comes under the study area of Psychrometrics? |
| A. | Relative Humidity |
| B. | physical and thermodynamic properties of gas-vapor mixtures |
| C. | theory and technique of educational and psychological measurement |
| D. | Atmospheric Pressure at Colder Regions of the World |
| Answer» B. physical and thermodynamic properties of gas-vapor mixtures | |
| 61. |
Ballistics is a branch of science that deals with which of the following? |
| A. | Geologic study of the behavior of soil and rock |
| B. | Motion of multibody systems subjected to unilateral contacts and friction |
| C. | Flight, behavior, and effects of projectiles |
| D. | Kinetic energy of a system |
| Answer» C. Flight, behavior, and effects of projectiles | |
| 62. |
SOFAR is a phenomenon which plays an important role in submarine warfare & also known as deep sound channel. Which of the following is correct full form of SOFAR? |
| A. | Sound Field Radio Ranging |
| B. | Sound Fixing and Altering Range |
| C. | Sound Fixing and Ranging channel |
| D. | Sound Fixing and Auto Reflection |
| Answer» C. Sound Fixing and Ranging channel | |
| 63. |
By which of the following process some stars which are of the size of Sun or smaller convert hydrogen to helium? |
| A. | Triple-alpha process |
| B. | Proton Proton Chain Reaction |
| C. | CNO Cycle |
| D. | R process |
| Answer» B. Proton Proton Chain Reaction | |
| 64. |
Fermi-Kurie plot is used for the study of which of the following? |
| A. | Alpha Decay |
| B. | Beta Decay |
| C. | Internal Conversion |
| D. | Cluster Decay |
| Answer» B. Beta Decay | |
| 65. |
Which among the following denotes the correct usage of an instrument called ―Theodolite‖? |
| A. | Measures distances, elevations, bearings etc |
| B. | Measures rotational speed of a shaft |
| C. | Measures horizontal and vertical angles in triangular networks |
| D. | Measures acidity or alkalinity of solutions |
| Answer» C. Measures horizontal and vertical angles in triangular networks | |
| 66. |
Which among the following is the science dealing with Colors? |
| A. | Optics |
| B. | Chromatics |
| C. | Ophthalmology |
| D. | Otology |
| Answer» B. Chromatics | |
| 67. |
Thermonuclear Experimental Reactor (ITER) project is located at? |
| A. | Italy |
| B. | France |
| C. | Germany |
| D. | China |
| Answer» B. France | |
| 68. |
Mach number‖ is a measure of which of the following? |
| A. | Speed |
| B. | Heat Transfer |
| C. | Static Pressure |
| D. | Volume |
| Answer» A. Speed | |
| 69. |
Radiation hardening is used in design of artificial satellites, spacecraft, military aircraft, nuclear power stations, and nuclear weapons for which of the following purposes? |
| A. | Protection from radiation damage |
| B. | trace element analysis |
| C. | use radiation energy |
| D. | Increase resistance |
| Answer» A. Protection from radiation damage | |
| 70. |
Newton-meters per second is represented as follows? |
| A. | Ohm |
| B. | Volt |
| C. | Watt |
| D. | Calorie |
| Answer» C. Watt | |
| 71. |
Most part of the Cosmic rays that impinge on earth‘s atmosphere are __? |
| A. | Electrons |
| B. | Protons |
| C. | Neutrons |
| D. | Gamma rays |
| Answer» B. Protons | |
| 72. |
Which among the following statement is correct about Fluorescence? |
| A. | High Energy Photon is absorbed and low energy photon is emitted |
| B. | Low Energy Photon is absorbed and high energy photon is emitted |
| C. | High Energy Photon is absorbed and electron is emitted |
| D. | Low Energy Photon is absorbed and electron is emitted |
| Answer» C. High Energy Photon is absorbed and electron is emitted | |
| 73. |
The combination of a Red Glass Plate and a Blue Glass plate will transmit which of the following light? |
| A. | Red light |
| B. | Blue Light |
| C. | Green Light |
| D. | No Light |
| Answer» D. No Light | |
| 74. |
VIBGYOR (Violet Indigo Blue Green Yellow Orange Red) are the rainbow colors in which of the following order? |
| A. | Increasing wavelength |
| B. | Decreasing wavelength |
| C. | Increasing polarization |
| D. | Increasing Speed |
| Answer» A. Increasing wavelength | |
| 75. |
Moon Mineralogy Mapper (M3) is an instruments providing the first high-resolution spatial and spectral map of the entire lunar surface to India‘s first mission to the Moon Chandrayan -1 launched 22 October 2008. It was contributed by __? |
| A. | National Aeronautics and Space Administration (NASA) |
| B. | Soviet space program |
| C. | Israel Space Agency |
| D. | National Aerospace Laboratory, US |
| Answer» A. National Aeronautics and Space Administration (NASA) | |
| 76. |
RLV-TD are a series of technology demonstration missions that have been conceived by ISRO as a first step towards realizing a Two Stage To Orbit (TSTO) fully re-usable launch vehicle. What is full form of RLV-TD? |
| A. | Reusable Launch Vehicle-Technology Demonstration |
| B. | Remote Launch Vehicle-Technology Demonstration |
| C. | Return Launch Vehicle-Technology Demonstration |
| D. | Reusable Launch Vehicle-Technology Device |
| Answer» A. Reusable Launch Vehicle-Technology Demonstration | |
| 77. |
On which of the following Inertia of an object depends ? |
| A. | Bulk |
| B. | Size |
| C. | Shape |
| D. | Mass |
| Answer» D. Mass | |
| 78. |
A person who is pulling a bucket filled with water falls behind with the sudden break of the rope. Which of the following laws of Newton comes into action? |
| A. | First Law |
| B. | Second law |
| C. | Third law |
| D. | First and third law |
| Answer» C. Third law | |
| 79. |
In which of the following situations the force applied by the weight of a person becomes zero in a lift |
| A. | Lift moves up with an acceleration of 9.8 meter per sq. second |
| B. | Lift moves down with an acceleration of 9.8 meter per sq. second |
| C. | Lift moves up with an speed of 9.8 meter per second |
| D. | Lift moves up with down speed of 9.8 meter per second |
| Answer» B. Lift moves down with an acceleration of 9.8 meter per sq. second | |
| 80. |
On which of the following the jet Engine works? |
| A. | Conservation of energy |
| B. | Conservation of Linear Momentum |
| C. | Conservation of Mass |
| D. | Conservation of Angular momentum |
| Answer» B. Conservation of Linear Momentum | |
| 81. |
Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up? |
| A. | Capillary action |
| B. | surface tension |
| C. | atmospheric pressure |
| D. | cohesive forces |
| Answer» C. atmospheric pressure | |
| 82. |
Which among the following character of mercury makes it suitable to use in barometers instead of water? |
| A. | Low density and low vapor pressure |
| B. | High density and high vapor pressure |
| C. | Low density and good conductor of heat |
| D. | High density and low vapor pressure |
| Answer» D. High density and low vapor pressure | |
| 83. |
When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube? |
| A. | rises |
| B. | falls |
| C. | falls then rises |
| D. | remains unaltered |
| Answer» A. rises | |
| 84. |
what happens when a ship enters a Sea from a river ? |
| A. | It rises |
| B. | It remains at the same level |
| C. | sinks a little |
| D. | None of the above |
| Answer» A. It rises | |
| 85. |
A transition from the solid to gas phase with no intermediate liquid stage is called? |
| A. | Evaporation |
| B. | Sublimation |
| C. | Adsorption |
| D. | Solid Phase extraction |
| Answer» B. Sublimation | |
| 86. |
Which among the following works while we wipe with a towel.? |
| A. | evaporation |
| B. | osmosis |
| C. | capillary action |
| D. | surface tension |
| Answer» C. capillary action | |
| 87. |
If water is heated , it vapor pressure will ______? |
| A. | Increase |
| B. | decrease |
| C. | first increase and then decrease |
| D. | nothing happens to vapor pressure |
| Answer» A. Increase | |
| 88. |
When two mercury drops are brought into contact they form a single bigger drop to get which of the following? |
| A. | Minimum volume |
| B. | Minimum surface area |
| C. | Maximum size |
| D. | Maximum surface area |
| Answer» B. Minimum surface area | |
| 89. |
On a smooth glass surface , the drop of water spreads while the drop of mercury remains almost spherical. This proves that ________? |
| A. | Cohesive forces of mercury is more than adhesive forces with glass |
| B. | Cohesive force of water is less than cohesive forces of mercury |
| C. | mercury is a metal |
| D. | 1 & 2 |
| Answer» A. Cohesive forces of mercury is more than adhesive forces with glass | |
| 90. |
Which of the following causes the drop of water to be in spherical shape? |
| A. | Viscosity |
| B. | Air resistance |
| C. | Surface tension |
| D. | Temperature |
| Answer» C. Surface tension | |
| 91. |
kalpana-1 was first exclusive satellite built by ISRO in which of the following satellite systems? |
| A. | INSAT |
| B. | METSAT |
| C. | GSAT |
| D. | EDUSAT |
| Answer» B. METSAT | |
| 92. |
First Indian Satellite Aryabhatta was launched in which year ? |
| A. | 1970 |
| B. | 1972 |
| C. | 1975 |
| D. | 1980 |
| Answer» C. 1975 | |
| 93. |
What is TERLS? |
| A. | A rocket launching Station |
| B. | A Space Science & Technology Center |
| C. | A satellite launched by India |
| D. | A satellite launched by USA |
| Answer» A. A rocket launching Station | |
| 94. |
Which among the following is known for a FBTR (fast Breeder Test Reactor) ? |
| A. | Naror |
| B. | Trombay |
| C. | Kalpakam |
| D. | None of the above |
| Answer» C. Kalpakam | |
| 95. |
Which among the following is the property of Tungsten which makes it eligible to use in the bulbs? |
| A. | highest melting point |
| B. | highest resistance |
| C. | Highest malleability |
| D. | All are correct |
| Answer» A. highest melting point | |
| 96. |
Who among the following is considered by the Indian scientific community to be the father of experimental fluid dynamics research in India and one of the most eminent researchers in the field of turbulence and boundary layers? |
| A. | Suhas V. Patankar |
| B. | Satish Dhawan |
| C. | M O Smith |
| D. | JC Bose |
| Answer» B. Satish Dhawan | |
| 97. |
The speed of Sound is maximum in which of the following ? |
| A. | Air at zero degree C |
| B. | Air at 100 degree C |
| C. | Water |
| D. | At all places it is maximum |
| Answer» C. Water | |
| 98. |
Steam at 100 degree centigrade causes more severe burns. Which of the following phenomena will you use to explain this? |
| A. | Specific heat |
| B. | Latent heat |
| C. | Fusion |
| D. | Fission |
| Answer» B. Latent heat | |
| 99. |
Which of the following waves can be used to measure the speed of a approaching car? |
| A. | Light waves |
| B. | Micro waves |
| C. | Radio waves |
| D. | Sound waves |
| Answer» C. Radio waves | |
| 100. |
Which among the following sentence is correct reason behind the blue color of ocean water? |
| A. | Water molecules absorb all other colors except blue |
| B. | Impurities in Sea water reflect the blue light |
| C. | Water molecules scatter the blue light |
| D. | None of the above |
| Answer» C. Water molecules scatter the blue light | |
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