JKSSB GENERAL SCIENCE MOCK TEST – 2
(Latest JKSSB Pattern | Moderate to High Level)
Time: 20 Minutes
Maximum Marks: 20
1. The gravitational acceleration on the Moon is nearly:
A) 9.8 m/s²
B) 4.9 m/s²
C) 1.62 m/s²
D) 3.7 m/s²
2. Match the following Heat Transfer Processes with their examples.
| Process | Example |
|---|---|
| i. Conduction | a. Sea breeze |
| ii. Convection | b. Heat from the Sun |
| iii. Radiation | c. Iron spoon becomes hot |
| iv. Convection | d. Chimney ventilation |
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-a, iii-c, iv-d
D) i-c, ii-b, iii-a, iv-d
3. Which of the following statements regarding solar energy are correct?
I. Solar energy is renewable.
II. Solar cells directly convert sunlight into electricity.
III. Solar energy produces no greenhouse gases during operation.
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 characteristic of wind energy?
A) Renewable source
B) Causes radioactive pollution
C) Pollution-free during operation
D) Depends on wind speed
5. Which of the following is an amphoteric oxide?
A) Na₂O
B) MgO
C) Al₂O₃
D) CaO
6. Which statements are correct regarding non-metals?
I. They generally gain electrons.
II. They form acidic oxides.
III. They are good conductors of electricity.
IV. They have high electronegativity.
A) Only I and II
B) Only I, II and IV
C) Only II and III
D) I, II, III and IV
7. Which metal reacts vigorously with cold water?
A) Copper
B) Iron
C) Sodium
D) Silver
8. Which gas is evolved when zinc reacts with dilute hydrochloric acid?
A) Oxygen
B) Hydrogen
C) Chlorine
D) Carbon dioxide
9. Which of the following metals is extracted by electrolytic reduction?
A) Copper
B) Iron
C) Sodium
D) Lead
10. Which statement is correct regarding refining of metals?
A) Electrolytic refining is commonly used for copper.
B) Roasting is a refining method.
C) Calcination is used for purification of pure metals.
D) Refining is unnecessary after extraction.
11. Which of the following statements regarding xylem are correct?
I. It transports water.
II. It transports minerals.
III. Movement is mainly upward.
IV. It transports food.
A) Only I and II
B) Only I, II and III
C) Only IV
D) I, II, III and IV
12. Which part of the human respiratory system contains alveoli?
A) Trachea
B) Bronchi
C) Lungs
D) Larynx
13. Which organ removes urea from human blood?
A) Liver
B) Kidney
C) Heart
D) Pancreas
14. Which of the following pollutants is mainly responsible for eutrophication?
A) Plastic
B) Fertilizers containing nitrates and phosphates
C) Carbon monoxide
D) Sulphur dioxide
15. Which trophic level receives the maximum amount of energy?
A) Primary consumers
B) Secondary consumers
C) Producers
D) Tertiary consumers
16. Which gas is mainly responsible for depletion of the ozone layer?
A) Carbon dioxide
B) Methane
C) Chlorofluorocarbons (CFCs)
D) Oxygen
17. Which of the following statements regarding Mendel's experiments are correct?
I. Mendel worked on pea plants.
II. F₁ generation showed dominant traits.
III. F₂ generation showed both dominant and recessive traits.
A) Only I
B) Only II and III
C) Only I and III
D) I, II and III
18. Match the following.
| Organism | Mode of Reproduction |
|---|---|
| i. Amoeba | a. Budding |
| ii. Hydra | b. Fragmentation |
| iii. Spirogyra | c. Binary fission |
| iv. Rhizopus | d. Spore formation |
Choose the correct option.
A) i-c, ii-a, iii-b, iv-d
B) i-a, ii-c, iii-d, iv-b
C) i-d, ii-a, iii-b, iv-c
D) i-c, ii-b, iii-a, iv-d
19. Which of the following pairs is correctly matched?
A) Bryophyta — Naked seeds
B) Gymnosperms — Flowering plants
C) Pteridophyta — First vascular plants
D) Angiosperms — Seedless plants
20. Which of the following statements regarding mammals are correct?
I. Mammary glands are present.
II. They are warm-blooded.
III. They possess a four-chambered heart.
IV. Bat is a mammal.
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 | D |
| 4 | B |
| 5 | C |
| 6 | B |
| 7 | C |
| 8 | B |
| 9 | C |
| 10 | A |
| 11 | B |
| 12 | C |
| 13 | B |
| 14 | B |
| 15 | C |
| 16 | C |
| 17 | D |
| 18 | A |
| 19 | C |
| 20 | D |
Difficulty Level: ★★★★☆ (Latest JKSSB Standard)
This paper includes direct factual questions, statement-based MCQs, matching questions, and application-based concepts aligned with the current JKSSB General Science syllabus.