| Objective General Knowledge |
| Q. | A light year is a unit of | | | 1 | Velocity | | | 2 | Distance | | | 3 | Time | | | 4 | Energy | | | Ans: 2 |
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| Q. | Which one among the following is not a mixture? | | | 1 | Graphite | | | 2 | Steel | | | 3 | Glass | | | 4 | Brass | | | Ans: 1 |
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| Q. | Which one among the following most correctly determines the atomic number of an element? | | | 1 | Number of protons and electrons | | | 2 | Number of nucleons | | | 3 | Number of ions | | | 4 | Number of protons | | | Ans: 4 |
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| Q. | Which one among the following is used to make periscope? | | | 1 | Concave lens | | | 2 | Concave mirror | | | 3 | Plane mirror | | | 4 | None of these | | | Ans: 3 |
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| Q. | Kilowatt-hour is the unit of | | | 1 | electric energy | | | 2 | electric power | | | 3 | electric potential | | | 4 | potential difference | | | Ans: 1 |
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| Q. | A stable nucleus (light with A < 10) has | | | 1 | no protons | | | 2 | no neutrons | | | 3 | exactly the same number of neutrons and protons | | | 4 | more neutrons than protons | | | Ans: 3 |
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| Q. | Which one among the following waves are called waves of heat energy? | | | 1 | Radio waves | | | 2 | Microwaves | | | 3 | Ultraviolet waves | | | 4 | Infrared waves | | | Ans: 4 |
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| Q. | Ultrasonic waves are those sound waves having frequency | | | 1 | between 20 hertz and 1000 hertz | | | 2 | between 1000 hertz and 20000 hertz | | | 3 | less than 20 hertz | | | 4 | more than 20 kilohertz | | | Ans: 4 |
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| Q. | The best colours for a Sun umbrella will be - | | | 1 | white on top and black on inside | | | 2 | red on top and black on inside | | | 3 | black on top and white on inside | | | 4 | black on top and red on inside | | | Ans: 1 |
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| Q. | Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because - | | | 1 | barium is a good absorber of X-rays and helps stomach to appear clearly | | | 2 | barium salts are white in colour and this helps stomach to appear clearly | | | 3 | barium allows X-rays to pass through the stomach | | | 4 | barium salts are easily available | | | Ans: 1 |
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