General Science 1000+ MCQ with answer for DRDO

1. The intencity of Earthquakes is measured on
A. Beaufort scale
B. Secant scale
C. Mercalli scale
D. Richter scale
Answer : D

2. The metal that is present in Photo Films is
A. Silver
B. Magnesium
C. Platinium
D. Mercury
Answer : A

3. Which of the following is commonly called a polyamide ?
A. Orion
B. Terylene
C. Rayon
D. Nylon
Answer : D

4. The type of glass used in making prisms and lenses is
A. Pyrex glass
B. Soft glass
C. Flint glass
D. Jena glass
Answer : C

5. The metallic constituents of hard water are
A. Calcium, magnesium and iron
B. Magnesium, Calcium and tin
C. Magnesium, tin and iron
D. Iron, tin and calcium
Answer : A

6. Nitrification means
A. Conversion of nitrogen to nitric acid.
B. Production of nitrogen from air
C. Convert the atmospheric nitrogen to effective nitrogen compound.
D. Liquifaction of nitrogen
Answer : C

7. One fathom is equal to
A. 6 feet
B. 6 metres
C. 60 cms
D. 60 feet
Answer : A

8. Lightening cause rainfall because
A. It activate H2O molecule
B. Photo-electricity reaction starts
C. Some of the gas molecules become bigger
D. It cause combination of oxygen and nitrogen
Answer : A

9. When a gas is turned into a liquid, the process is called
A. evaporation
B. condensation
C. sublimation
D. deposition
Answer : B

10. The major ingredient of leather is
A. Nucleic acid
B. Carbohydrate
C. Collagen
D. Polymer
Answer : C

11. In an atomic nucleus, neutrons and protons are held together by
A. Magnetic forces
B. Gravitational forces
C. Coulombic forces
D. Exchange forces
Answer : D

12. Apparatus invented by Archimedes is :
A. Pulley
B. Microscope
C. Thermemoter
D. Barometer
Answer : A

13. The recent atomic weight scale is based on
A. 1H1
B. 1H2
C. 6C12
D. 8O16
Answer : C

14. Which of the following is in liquid form at room temperature ?
A. Sodium
B. Cerium
C. Francium
D. Lithium
Answer : C

15. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
A. Sulphonates
B. Zeolites
C. Nitrates
D. None of these
Answer : B

16. The formula of Plaster of Paris is
A. 2CaSO4, H2O
B. CaSO4
C. CaSO4, 2H2O
D. 2CaSO4, 4H2O
Answer : A

17. The chemial name of Uria is
A. Carbamide
B. Chloroetane
C. Aneurin
D. None of these
Answer : A

18. Quartz crystals normally used in quartz clocks etc. is chemically
A. A mixture of B and C
B. Silicon dioxide
C. Germenium dioxide
D. Sodium Silicate
Answer : B

19. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If both inputs are positive the output is zero. This is
A. an AND circuit
B. an OR circuit
C. a high-pass filter
D. a NOR circuit
Answer : B

20. Water has maximum density at
A. 0°C
B. -4°C
C. 100°C
D. 4°C
Answer : D

21. Which of the following is the lightest metal ?
A. Mercury
B. Lithium
C. Lead
D. Silver
Answer : B

22. The location and energy of an electron in an atom can be specified by
A. Atomic number
B. Atomic mass
C. Quantum numbers
D. None of these
Answer : C

23. The most important ore of Aluminium is
A. Calamine
B. Calcite
C. Galena
D. Bauxite
Answer : D

24. Pollination by birds is called
A. autogamy
B. entomophily
C. anemophily
D. ornithophily
Answer : D

25. The Panda belongs to the same family as that of
A. Cat
B. Bear
C. Rabbit
D. Dog
Answer : B

26. Polythene is industrially prepared by the polymerisation of
A. styrene
B. methane C. ethylene
D. acetylene
Answer : C