JKSSB GENERAL SCIENCE MOCK TEST – 5
(Latest JKSSB Pattern | Moderate to High Level)
Time: 20 Minutes
Maximum Marks: 20
1. According to Newton's Universal Law of Gravitation, the gravitational force between two objects is:
A) Directly proportional to the square of the distance between them
B) Inversely proportional to the product of their masses
C) Directly proportional to the product of their masses and inversely proportional to the square of the distance between them
D) Independent of the masses of the objects
2. Match the following quantities with their SI units.
| Quantity | SI Unit |
|---|---|
| i. Force | a. Joule |
| ii. Work | b. Watt |
| iii. Power | c. Newton |
| iv. Energy | d. Joule |
Choose the correct option.
A) i-c, ii-d, iii-b, iv-a
B) i-b, ii-c, iii-d, iv-a
C) i-c, ii-a, iii-d, iv-b
D) i-a, ii-c, iii-b, iv-d
3. Which of the following statements regarding renewable sources of energy are correct?
I. They can be replenished naturally.
II. Solar and wind energy are renewable.
III. Fossil fuels are renewable.
IV. Renewable energy helps reduce pollution.
A) Only I and II
B) Only II and III
C) Only I, II and IV
D) I, II, III and IV
4. Which of the following energy sources is obtained from hot water and steam beneath the Earth's surface?
A) Biomass Energy
B) Geothermal Energy
C) Wind Energy
D) Tidal Energy
5. Which of the following metals is the best conductor of electricity?
A) Aluminium
B) Copper
C) Silver
D) Iron
6. Which of the following statements regarding metals are correct?
I. Metals generally form positive ions.
II. Metals lose electrons during chemical reactions.
III. Sodium reacts vigorously with water.
IV. Copper is more reactive than magnesium.
A) Only I and II
B) Only II and III
C) Only I, II and III
D) I, II, III and IV
7. Which gas is evolved when sodium reacts with water?
A) Oxygen
B) Hydrogen
C) Nitrogen
D) Carbon dioxide
8. Which metal is extracted from the ore Bauxite?
A) Iron
B) Aluminium
C) Copper
D) Zinc
9. Which of the following metals can be extracted by heating its oxide alone?
A) Sodium
B) Potassium
C) Mercury
D) Calcium
10. Which of the following methods is commonly used for concentrating oxide ores?
A) Froth flotation
B) Hydraulic washing
C) Electrolysis
D) Distillation
11. Which of the following statements regarding the human digestive system are correct?
I. Digestion begins in the mouth.
II. Saliva contains the enzyme amylase.
III. The stomach secretes hydrochloric acid.
IV. Most absorption of nutrients occurs in the small intestine.
A) Only I and II
B) Only II, III and IV
C) Only I, III and IV
D) I, II, III and IV
12. Which tissue transports food in plants?
A) Xylem
B) Phloem
C) Epidermis
D) Cortex
13. The structural and functional unit of the kidney is:
A) Alveolus
B) Neuron
C) Nephron
D) Glomerulus
14. Which of the following pollutants is mainly responsible for global warming?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
15. Which trophic level occupies the second level in a food chain?
A) Producers
B) Primary consumers
C) Secondary consumers
D) Decomposers
16. Which of the following is celebrated on 16 September every year?
A) World Environment Day
B) Earth Day
C) World Ozone Day
D) World Water Day
17. Which of the following statements regarding heredity are correct?
I. Genes are located on chromosomes.
II. DNA carries hereditary information.
III. Mendel is called the Father of Genetics.
IV. Traits are passed from parents to offspring.
A) Only I and II
B) Only II and III
C) Only I, II and IV
D) I, II, III and IV
18. Match the following.
| Plant Group | Example |
|---|---|
| i. Bryophyta | a. Pine |
| ii. Pteridophyta | b. Funaria |
| iii. Gymnosperms | c. Mango |
| iv. Angiosperms | d. Fern |
Choose the correct option.
A) i-b, ii-d, iii-a, iv-c
B) i-d, ii-b, iii-c, iv-a
C) i-a, ii-d, iii-b, iv-c
D) i-b, ii-a, iii-d, iv-c
19. Which of the following animals belongs to the phylum Arthropoda?
A) Earthworm
B) Starfish
C) Cockroach
D) Hydra
20. Which of the following statements are correct?
I. Fish respire through gills.
II. Amphibians live both on land and in water.
III. Birds are warm-blooded.
IV. Mammals possess mammary glands.
A) Only I and II
B) Only I, II and III
C) Only II, III and IV
D) I, II, III and IV
ANSWER KEY
| Q. No. | Answer |
|---|---|
| 1 | C |
| 2 | A |
| 3 | C |
| 4 | B |
| 5 | C |
| 6 | C |
| 7 | B |
| 8 | B |
| 9 | C |
| 10 | B |
| 11 | D |
| 12 | B |
| 13 | C |
| 14 | C |
| 15 | B |
| 16 | C |
| 17 | D |
| 18 | A |
| 19 | C |
| 20 | D |