HSA Mixed Practice Test #245

Question 1

Alexander Fleming discovered:‌​‍

Accepted Answer

Penicillin — Penicillin (1928).‌​‍

Answer

Vaccine

Answer

X-ray

Answer

DNA

Question 2

A major industrial complex located near a river is identified as a significant source of Persistent Organic Pollutants (POPs) contaminating the aquatic ecosystem. Considering effective pollution control strategies, which of the following measures would be most crucial and directly impactful in mitigating this specific issue?

Accepted Answer

A. Implementing advanced tertiary wastewater treatment processes, such as activated carbon adsorption or reverse osmosis, at the industrial effluent discharge point. — The correct answer (A) directly addresses the problem of POPs in industrial wastewater by recommending advanced treatment technologies specifically designed to remove such contaminants before discharge into aquatic ecosystems. Options B, C, and D, while beneficial for environmental protection in general, do not directly target the prevention of POPs discharge from industrial effluents. Option B addresses agricultural pollution, C focuses on riparian health and erosion control, and D targets air pollution and climate change, making them less relevant to the specific problem described.

Answer

B. Encouraging the adoption of organic farming practices and reducing pesticide use in agricultural lands adjacent to the river.

Answer

C. Establishing extensive riparian buffer zones and promoting afforestation projects along the riverbanks downstream of the industrial complex.

Answer

D. Shifting the industrial complex's energy source entirely to renewable alternatives like solar or wind power to reduce its carbon footprint.

Question 3

The earliest epigraphical record on 'Kollam Era' is:‌​‍

Accepted Answer

Tarisapalli copper plate — Tarisapalli/Tharisappalli copper plates (849 CE) — earliest record of the Kollam Era.‌​‍

Answer

Mampalli plate

Answer

Chaliyam plate

Answer

Vazhappilli inscription

Question 4

The Malabar Rebellion (Mappila Rebellion) of 1921 was centred in:‌​‍

Accepted Answer

Kozhikode and Malappuram — The 1921 Malabar Rebellion was centred in the Eranad and Valluvanad taluks of present-day Malappuram and Kozhikode.‌​‍

Answer

Kannur and Kasaragod

Answer

Palakkad and Thrissur

Answer

Ernakulam and Thrissur

Question 5

Pellagra vitamin:‌​‍

Accepted Answer

B3 (Niacin) — Niacin (B3) deficiency.‌​‍

Answer

B12

Answer

B1

Answer

C

Question 6

Which figure of speech compares using 'like' or 'as'?‌​‍

Accepted Answer

Simile — Simile: 'brave as a lion'. Metaphor is direct without 'like'/'as'.‌​‍

Answer

Hyperbole

Answer

Metaphor

Answer

Personification

Question 7

Rajendra Chola I's naval expedition (c. 1025) reached:

Accepted Answer

Srivijaya (Sumatra-Malay) empire — First Indian overseas military expedition on this scale. Brought back 'Gangaikonda' (conqueror of Ganga) title after northern campaign; built new capital.

Answer

Rome

Answer

China

Answer

Egypt

Question 8

Adrenal glands above:‌​‍

Accepted Answer

Kidneys — On top of kidneys.‌​‍

Answer

Liver

Answer

Brain

Answer

Heart

Question 9

Govt Law College TVM:‌​‍

Accepted Answer

Oldest in Kerala — Oldest.‌​‍

Answer

Closed

Answer

Newest

Answer

Private

Question 10

Synonym of IMPETUOUS:‌​‍

Accepted Answer

Impulsive — Acting without thought.‌​‍

Answer

Careful

Answer

Thoughtful

Answer

Slow

HSA Mixed Practice Test #245