General Science #13 Multiple Choice Questions

GENERAL SCIENCE #13

MULTIPLE CHOICE QUESTIONS

1. Which of the following is considered as non-conventional source of energy?

(a) Solar

(b) Natural gas

(c) Nuclear power

(d) Coal

Answer: (a)

2. A man is standing on a weighing machine in a lift which is moving. The weighing machine will show minimum reading when the lift is moving ……………

(a) downwards with uniform acceleration

(b) upwards with uniform acceleration

(c) upwards with uniform speed

(d) in a free fall due to failure of the lift mechanism

Answer: (d)

3. The action and reaction forces referred to Newton’s third law ……………

(a) must act on the same object

(b) may act on different object

(c) must act on different object

(d) need not be equal in magnitude but must have the C

Answer: (c)

4. In SI units, the number of basic physical quantities are ……………

(a) 3

(b) 7

(c) 10

(d) 15

Answer: (b)

5. Horizontal and vertical angles is measured by which of the following?

(a) Radar

(b) Seismograph

(c) Theodolite

(d) Telescope

Answer: (c)

6. What is the melting point of ice?

(a) 0⁰ C

(b)- 0⁰ C

(c) 100⁰ C

(d) -100⁰ C

Answer: (a)

7. What is the boiling point of copper?

(a) 100⁰ C

(b) 356.58⁰ C

(c) 2336⁰ C

(d) 907⁰ C

Answer: (c)

8. First change of water into vapours is ……………

(a) a natural process

(b) a physical change

(c) a bio-chemical process

(d) a chemical change

Answer: (b)

9. Van der Waals forces depend upon which of the following?

(a) Molecular mass

(b) Molecular size

(c) Molecular shape

(d) All of the above

Answer: (d)

10. What is the property used in sewage disposal?

(a) Coagulation

(b) Electrophoresis

(c) Tyndall effect

(d) Adsorption

Answer: (a)

11. Which of the following components is present in highest proportion in water?

(a) CH₄

(b) Steam

(c) H₂

(d) CO₂

Answer: (c)

12. Hydrogen can act as which of the following?

(a) Reducing agent only

(b) Oxidising agent only

(c) Both (a) and (b)

(d) None of the above

Answer: (c)

13. How many neutrons are present in the nucleus of tritium?

(a) 1

(b) 2

(c) 3

(d) 4

Answer: (b)

14. The molecular mass of tritium oxide is about ……………

(a) 17 u

(b) 20 u

(c) 22 u

(d) 32 u

Answer: (c)

15. Milk : Protein :: Bread : ……………?

(a) Vitamins

(b) Carbohydrates

(c) Minerals

(d) Fats

Answer: (b)

16. Which animal produces milk for its young?

(a) Frog

(b) Snake

(c) Monkey

(d) Chicken

Answer: (c)

17. The Hepatitis-B, which affects liver is actually a ……………

(a) virus

(b) helminth

(c) bacterium

(d) protozoan

Answer: (a)

18. Ring worm is caused by which of the following?

(a) Bacterium

(b) Fungus

(c) Worm

(d) Virus

Answer: (b)

19. Which one of the following disease is caused by virus?

(a) Whooping cough

(b) Cholera

(c) Measles

(d) Diphtheria

Answer: (c)

20. The absence of cobalt in minute quantities in human body causes which of the following?

(a) Arthritis

(b) Matta fever

(c) Pernicious anaemia

(d) Leucoderma

Answer: (c)