Junior Clerk Mixed Practice Test #753

Question 1

What does geology, as a science, study?‌​‍

Accepted Answer

Earth's composition, structure, processes, and history — James Hutton — father of modern geology (1788, 'Theory of the Earth'). ‌​‍Uniformitarianism — present is key to past.

Answer

Only minerals

Answer

Only rocks

Answer

Weather

Question 2

Which of the following best explains the phenomenon where two unrelated species independently evolve similar traits due to similar environmental pressures, such as the streamlined body shape of sharks (fish) and dolphins (mammals)?

Accepted Answer

A. Convergent evolution — Convergent evolution occurs when unrelated species evolve similar traits due to similar environmental pressures, as seen in sharks and dolphins. Divergent evolution involves related species evolving different traits from a common ancestor. Parallel evolution occurs when related species evolve similar traits independently, and co-evolution involves species evolving in response to each other, such as predators and prey.

Answer

B. Divergent evolution

Answer

C. Parallel evolution

Answer

D. Co-evolution

Question 3

Sum of roots of ax² + bx + c = 0:

Accepted Answer

-b/a — Product of roots: c/a. Vieta's formulas.

Answer

b/a

Answer

c/a

Answer

-c/a

Question 4

Zomato founder:‌​‍

Accepted Answer

Deepinder Goyal — Deepinder Goyal.‌​‍

Answer

VSS

Answer

Pankaj

Answer

Sachin

Question 5

If cost price = ₹100, selling price = ₹120, profit %:

Accepted Answer

20% — Profit = 20. Profit% = 20/100 × 100 = 20%.

Answer

10%

Answer

15%

Answer

25%

Question 6

India's National Waterway 3 (NW-3) stretches between:‌​‍

Accepted Answer

Kottapuram – Kollam — NW-3 (West Coast Canal) runs 205 km from Kottapuram to Kollam in Kerala.‌​‍

Answer

Kakinada – Puducherry

Answer

Sadiya – Dhubri

Answer

Allahabad – Haldia

Question 7

Which of the following best describes the Von Neumann architecture?‌​‍

Accepted Answer

Single memory storing program and data, sequential execution — Stored-program concept. ‌​‍Basis of almost all modern computers. CPU (ALU + CU) + memory + I/O. ‌​‍Harvard architecture separates program/data memory.

Answer

Parallel

Answer

Distributed

Answer

Separate memory

Question 8

Cube with side 3 cm painted. Cut into 1cm cubes. Total:

Accepted Answer

27 — 3³ = 27 small cubes.

Answer

9

Answer

18

Answer

36

Question 9

Synonym of ACRIMONIOUS:

Accepted Answer

Bitter — Bitter, sharp (in speech).

Answer

Sweet

Answer

Mild

Answer

Happy

Question 10

Indus Valley Civilization period:‌​‍

Accepted Answer

3300-1300 BCE — IVC flourished approximately 3300-1300 BCE.‌​‍

Answer

1500-500 BCE

Answer

2500-1500 BCE

Answer

5000-3000 BCE

Junior Clerk Mixed Practice Test #753