LGS Mixed Practice Test #171

Question 1

Abhijit Banerjee won the Nobel in Economics in:‌​‍

Accepted Answer

2019 — Abhijit Banerjee (Kolkata-born) shared 2019 Nobel with Esther Duflo (his wife) and Michael Kremer for RCT-based poverty research.‌​‍

Answer

2018

Answer

2017

Answer

2020

Question 2

Electrolysis of molten NaCl gives:‌​‍

Accepted Answer

Na at cathode, Cl₂ at anode — Na⁺ is reduced to Na at cathode; Cl⁻ is oxidised to Cl₂ at anode.‌​‍

Answer

Only Na

Answer

Na at anode, Cl₂ at cathode

Answer

Only Cl₂

Question 3

Ernakulam is:

Accepted Answer

Commercial capital — Most urbanised. Kochi is here.

Answer

Capital

Answer

Cultural capital

Answer

Judicial capital

Question 4

Ecological succession:‌​‍

Accepted Answer

Progressive, orderly change in community until climax — Primary succession: bare rock/new island (pioneer: lichens). ‌​‍Secondary: after disturbance (abandoned field).

Answer

Random

Answer

Sudden

Answer

Always reverse

Question 5

The foundation of modern higher education in India was laid by a significant dispatch from the British government, which recommended the establishment of universities in key cities. Which historic document is famously associated with proposing the establishment of the Universities of Calcutta, Bombay, and Madras?

Accepted Answer

B. Wood's Despatch (1854) — Wood's Despatch of 1854 is widely considered the 'Magna Carta of English Education in India' as it recommended the establishment of universities in Calcutta, Bombay, and Madras, modelled on the University of London. Macaulay's Minute (1835) advocated for English education, while the Hunter Commission (1882) reviewed the progress of education after Wood's Despatch, and the Sadler Commission (1917) focused specifically on the problems of Calcutta University.

Answer

A. Macaulay's Minute on Indian Education (1835)

Answer

C. Hunter Education Commission (1882)

Answer

D. Sadler Commission (1917)

Question 6

Mathew Kuzhalnadan:‌​‍

Accepted Answer

Politician — Kerala MLA.‌​‍

Answer

Engineer

Answer

Author

Answer

Actor

Question 7

How many chambers does the human heart have?‌​‍

Accepted Answer

4 — The human heart has 4 chambers — 2 atria (upper chambers) and 2 ventricles (lower chambers).‌​‍

Answer

2

Answer

3

Answer

5

Question 8

Phloem conducts:‌​‍

Accepted Answer

Food (mainly sucrose) — sugars, organic solutes — Sieve tubes + companion cells + phloem parenchyma + fibres. ‌​‍Bidirectional. Xylem: water (unidirectional).

Answer

Air

Answer

Waste

Answer

Water

Question 9

Conservation of mechanical energy applies when:‌​‍

Accepted Answer

Only conservative forces do work — KE + PE = constant when non-conservative forces (friction, air drag) do no work.‌​‍

Answer

Collisions

Answer

Always

Answer

Friction present

Question 10

Blood typing for transfusion was first established after:‌​‍

Accepted Answer

Discovery of ABO blood groups (Landsteiner, 1901) — Before Landsteiner, transfusions often fatal due to ABO incompatibility.‌​‍

Answer

Invention of syringes

Answer

Discovery of DNA

Answer

Antibiotics

LGS Mixed Practice Test #171