JKSSB GENERAL SCIENCE MOCK TEST – 3
(Latest JKSSB Pattern | Moderate to High Level)
Time: 20 Minutes
Maximum Marks: 20
1. According to Newton's Law of Gravitation, the gravitational force between two bodies is directly proportional to:
A) Product of their masses
B) Sum of their masses
C) Difference of their masses
D) Square of their masses
2. Match the following temperature scales with their corresponding fixed points.
| Scale | Fixed Point |
|---|---|
| i. Celsius | a. 32°F |
| ii. Fahrenheit | b. 273 K |
| iii. Kelvin | c. 0°C |
| iv. Clinical Thermometer | d. 35°C–42°C |
Choose the correct option.
A) i-c, ii-a, iii-b, iv-d
B) i-a, ii-c, iii-b, iv-d
C) i-b, ii-c, iii-a, iv-d
D) i-c, ii-b, iii-a, iv-d
3. Which of the following statements are correct regarding light?
I. Light travels in a straight line.
II. Speed of light in vacuum is approximately 3 × 10⁸ m/s.
III. A convex lens always forms a virtual image.
A) Only I
B) Only I and II
C) Only II and III
D) I, II and III
4. Which of the following is NOT a physical change?
A) Melting of ice
B) Boiling of water
C) Burning of paper
D) Sublimation of camphor
5. Which of the following is a chemical property of metals?
A) Malleability
B) Ductility
C) Reaction with dilute acids
D) Metallic lustre
6. Which of the following statements are correct?
I. Metals generally lose electrons.
II. Non-metals generally gain electrons.
III. Metals are electropositive.
IV. Non-metals are electronegative.
A) Only I and II
B) Only I, II and III
C) Only II, III and IV
D) I, II, III and IV
7. Which metal is stored under kerosene to prevent reaction with air and moisture?
A) Copper
B) Iron
C) Sodium
D) Silver
8. Which of the following gases is evolved when dilute sulphuric acid reacts with zinc?
A) Oxygen
B) Hydrogen
C) Sulphur dioxide
D) Carbon dioxide
9. Which of the following metals is the least reactive?
A) Sodium
B) Magnesium
C) Copper
D) Gold
10. Which process is used for concentrating sulphide ores?
A) Hydraulic washing
B) Froth flotation
C) Magnetic separation
D) Hand picking
11. Which of the following statements are correct regarding photosynthesis?
I. Chlorophyll is essential.
II. Carbon dioxide is used.
III. Oxygen is released.
IV. Glucose is produced.
A) Only I and II
B) Only II and III
C) Only I, II and III
D) I, II, III and IV
12. Which blood vessel carries oxygenated blood from the lungs to the heart?
A) Pulmonary artery
B) Pulmonary vein
C) Aorta
D) Vena cava
13. Which organ is mainly responsible for filtration of blood?
A) Liver
B) Kidney
C) Heart
D) Lungs
14. Which of the following is a greenhouse gas?
A) Oxygen
B) Nitrogen
C) Methane
D) Helium
15. In a food chain, organisms that prepare their own food are called:
A) Consumers
B) Decomposers
C) Producers
D) Scavengers
16. Which international agreement is mainly associated with protection of the ozone layer?
A) Kyoto Protocol
B) Paris Agreement
C) Montreal Protocol
D) Ramsar Convention
17. Which of the following statements regarding heredity are correct?
I. Gregor Mendel is called the Father of Genetics.
II. Genes are units of heredity.
III. DNA carries genetic information.
A) Only I
B) Only II
C) Only I and III
D) I, II and III
18. Match the following.
| Plant | Type of Vegetative Propagation |
|---|---|
| i. Potato | a. Bulb |
| ii. Ginger | b. Stem tuber |
| iii. Onion | c. Rhizome |
| iv. Bryophyllum | d. Leaf buds |
Choose the correct option.
A) i-b, ii-c, iii-a, iv-d
B) i-c, ii-b, iii-a, iv-d
C) i-b, ii-a, iii-c, iv-d
D) i-d, ii-c, iii-b, iv-a
19. Which of the following groups contains flowering plants?
A) Bryophyta
B) Pteridophyta
C) Gymnosperms
D) Angiosperms
20. Which of the following statements regarding birds are correct?
I. They are warm-blooded.
II. They possess feathers.
III. Their forelimbs are modified into wings.
IV. They have a four-chambered heart.
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 | A |
| 2 | A |
| 3 | B |
| 4 | C |
| 5 | C |
| 6 | D |
| 7 | C |
| 8 | B |
| 9 | D |
| 10 | B |
| 11 | D |
| 12 | B |
| 13 | B |
| 14 | C |
| 15 | C |
| 16 | C |
| 17 | D |
| 18 | A |
| 19 | D |
| 20 | D |
Difficulty Level: ★★★★☆ (JKSSB Latest Standard)
This mock test follows the JKSSB pattern with a balanced mix of conceptual, factual, statement-based, matching, and application-oriented questions from all General Science chapters.