General Science #2 MCQ

GENERAL SCIENCE #2 MCQ

1. How many calories are there in one kilo-calorie?

(a) 1500

(b) 500

(c) 1000

(d) 2000

Answer: (c)

2. What is absolute zero on Celsius scale?

(a) -273⁰ C

(b) -373⁰ C

(c) 273⁰ C

(d) 373⁰ C

Answer: (a)

3. Which of the following is approximate efficiency of petrol engine?

(a) 25%

(b) 30%

(c) 10%

(d) 50%

Answer: (b)

4. Which of the following statements are true regarding heat?

(i) Heat is a form of energy.

(ii) Heat can be reflected by a mirror.

(iii) Heat is an electromagnetic radiation.

(iv) Heat cannot pass through vacuum.

Select the correct answer from the codes given below

(a) 1,2 and 3

(b) 1, 2 and 4

(c) 2, 3, and 4

(d) 1, 3 and 4

Answer: (a)

5. Thermodynamics mostly deals with which of the following?

(a) Conversion of heat into other forms of energy

(b) Change of state

(c) Measurement of quantity of heat

(d) Transfer of heat

Answer: (a)

6. What is the time period of a pendulum of length 9.8 m?

(a) 8.4 s

(b) 6.17 s

(c) 6.28 s

(d) 7.2 s

Answer: (c)

7.  What is the SI unit of specific heat?

(a) J/kg/⁰C

(b) Newton

(c) Kelvin

(d) Ampere

Answer: (a)

8. What is called the substance containing sae type of atoms?

(a) Element

(b) Mixture

(c) Compound

(d) None of the above

Answer: (a)

9. In the gaseous state, particles can move in which of the following?

(a) Upward and downward only

(b) Only in one direction

(c) Randomly in all directions

(d) Only in a fixed path

Answer: (c)

10. Which of the following methods should be used to obtain chlorine and hydrogen from sodium chloride?

(a) Distillation

(b) Electrolysis

(c) Electroplating

(d) Neutralisation

Answer: (b)

11. What is the symbol of iodine?

(a) Pb

(b) I

(c) M

(d) Fe

Answer: (b)

12. Matter can be changed from one physical state to another by which of the following process?

(a) Heating

(b) Crushing

(c) Colouring

(d) Swapping

Answer: (a)

13. Which form of the matter has highest kinetic energy of molecules?

(a) Gas

(b) Solid

(c) Liquid

(d) None of the above

Answer: (a)

14. What is called the study of animal behaviour?

(a) Entomology

(b) Ethology

(c) Ethnology

(d) Ethnography

Answer: (b)

15. Palaeontology is the study of which of the following?

(a) Planets

(b) Microbes

(c) Fossils

(d) Animals

Answer: (c)

16. What is the role of mitochondria in a living cell?

(a) Produce energy for the cell

(b) Get rid of the waste materials of the cell

(c) Act as the control centre of the cell

(d) Store materials in the cell

Answer: (a)

17. What are the tubes called which carry water and minerals to the leaf?

(a) Cells

(b) Veins

(c) Stomata

(d) Petiole

Answer: (b)

18. Haemoglobin is dissolved in the plasma of which of the following?

(a) Fish

(b) Frog

(c) Human

(d) Earthworm

Answer: (d)

19. Which of the following is not an element of the bone?

(a) Carbon

(b) Oxygen

(c) Phosphorus

(d) Calcium

Answer: (a)

20. What is called the total genetic material within an individual?

(a) Gene pool

(b) Genetic code

(c) Genome

(d) Chromosome

Answer: (c)