LGS Mixed Practice Test #804

Question 1

First Vande Bharat route:‌​‍

Accepted Answer

Delhi-Varanasi — Delhi-Varanasi (Feb 2019).‌​‍

Answer

Chennai-Mysore

Answer

Mumbai-Pune

Answer

Delhi-Mumbai

Question 2

Critical temperature of a gas is:‌​‍

Accepted Answer

Temperature above which it cannot be liquefied by pressure alone — For water 647 K; CO₂ 304 K. Below T_c, apply pressure → liquefies.‌​‍

Answer

Melting point

Answer

Boiling point

Answer

Triple point

Question 3

Blood pH:‌​‍

Accepted Answer

7.4 — ~7.4 (slightly alkaline).‌​‍

Answer

6.5

Answer

7.0

Answer

8.0

Question 4

Kerala's unique panchayat reform:‌​‍

Accepted Answer

People's Planning Campaign — People's Planning Campaign 1996.‌​‍

Answer

Digital

Answer

Industrial

Answer

Green

Question 5

Variance:

Accepted Answer

Mean of (x-μ)² — σ² = E[(X-μ)²] = E[X²] - μ². Standard deviation: σ = √variance.

Answer

Σx

Answer

μ

Answer

Mean

Question 6

The primary mechanism by which non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen cause gastric ulceration is:

Accepted Answer

B. Inhibition of cyclooxygenase-1 (COX-1) in the gastric mucosa. — NSAIDs inhibit cyclooxygenase (COX) enzymes. Inhibition of COX-1 in the gastric mucosa reduces the production of protective prostaglandins, which are essential for maintaining gastric blood flow, mucus secretion, and bicarbonate production, thereby leading to mucosal damage and ulceration.

Answer

A. Direct corrosive action on the gastric mucosa.

Answer

C. Increased gastric acid secretion.

Answer

D. Stimulation of histamine release in the stomach.

Question 7

Hemingway's 'Old Man and the Sea' (Nobel 1954):‌​‍

Accepted Answer

Cuban fisherman Santiago catches giant marlin — Themes: courage, endurance, defeat with dignity. ‌​‍Iceberg theory of prose (minimal).

Answer

Russian

Answer

Set in USA

Answer

Indian

Question 8

Idasseri Govindan Nair:‌​‍

Accepted Answer

Poet — Poet; Kalamandalam Kathakali texts.‌​‍

Answer

Novelist

Answer

Politician

Answer

Filmmaker

Question 9

Which of the following scenarios best illustrates intrinsic motivation in a learning environment?

Accepted Answer

C. A student practices solving mathematical problems because they find the process satisfying and enjoy the challenge. — Intrinsic motivation arises from internal satisfaction rather than external rewards. Option C reflects this as the student engages in the activity purely for the joy and personal fulfillment it provides, unlike options A, B, and D, which rely on external incentives.

Answer

A. A student studies hard to earn a scholarship for higher education.

Answer

B. A teacher rewards students with extra marks for completing assignments on time.

Answer

D. A school conducts a quiz competition with prizes for top performers.

Question 10

Gravity discovered by:‌​‍

Accepted Answer

Newton — Sir Isaac Newton — Law of Universal Gravitation.‌​‍

Answer

Galileo

Answer

Kepler

Answer

Einstein

LGS Mixed Practice Test #804