GENERAL SCIENCE QUIZ | SSC | RRB

1. Clear night are colder than cloudy nights because of --
a) conduction
b) condensation
c) radiation
d) insolation

2. The speed of light with the rise in the temperature of the medium --
a) increases
b) decreases
c) Remains unaltered
d) Drops suddenly

3. Which of the following electromagnetic waves has the longest wavelength?
a) infrared rays
b) gamma rays
c) light rays
d) ultraviolet rays

4. If there were no atmosphere, the length of the day on the earth will --
a) decrease
b) increase
c) remain the same
d) None of these

5. Astigmatism for a human eye can be removed by using --
a) concave lens
b) convex lens
c) cylindrical lens
d) prismatic lens

6. In summer, the mirages are seen due to the phenomenon of --
a) reflection of light
b) total internal reflection
c) interference of light
d) diffraction of light

7. Which is the most reactive metal --
a) Sodium
b) Calcium
c) Iron
d) Potassium

8. Lead in water can cause --
a) eye disease
b) arthritis
c) kidney damage
d) hair falling

9. The causal organism of Polio is --
a) Virus
b) Bacteria
c) Protozoa
d) Fungi

10. Which plant is called Herbal-Indian Doctor?
a) Neem
b) Amla
c) Mango
d) Tulsi

11. Normal temperature of human body on the kelvin scale is --
a) 280
b) 290
c) 300
d) 310

12. What is farming along with animal husbandry called?
a) Mixed farming
b) Mixed agriculture
c) Dairy farming
d) Truck farming

13. The world's only floating national park is situated in --
a) Manipur
b) Kualakumpur
c) Bilaspur
d) Dispur

14. Ozone hole is maximum over --
a) Europe
b) Antarctica
c) India
d) Africa

15. Sound become hazardous noise pollution at level --
a) Above 30dB
b) Above 80bB
c) Above 100dB
d) Above 120dB

Answers:
1. C
2. C
3. A
4. A
5. C
6. B
7. D
8. C
9. A
10. D
11. D
12. A
13. A
14. B
15. B