HSA Mixed Practice Test #823

Question 1

POCSO Act:

Accepted Answer

2012 — Protection of Children from Sexual Offences 2012.

Answer

2008

Answer

2015

Answer

2020

Question 2

Southernmost tip of India:‌​‍

Accepted Answer

Indira Point (Great Nicobar) — Indira Point in Andaman-Nicobar.‌​‍

Answer

Kanyakumari

Answer

Rameshwaram

Answer

Cape Comorin

Question 3

Assembly Bomb case (1929):

Accepted Answer

Bhagat Singh and Batukeshwar Dutt — Bhagat Singh and B.K. Dutt threw non-lethal bombs.

Answer

Azad alone

Answer

Rajguru and Sukhdev

Answer

Bose

Question 4

V.R. Krishna Iyer:‌​‍

Accepted Answer

Judge and reformer — SC judge, social reformer.‌​‍

Answer

Filmmaker

Answer

Priest

Answer

Politician

Question 5

Adsorption on activated charcoal is:

Accepted Answer

Physisorption (van der Waals), reversible, low heat — ΔH ~20-40 kJ/mol. Multilayer. Chemisorption: chemical bond, high ΔH (>80), monolayer, specific.

Answer

Chemisorption

Answer

Neither

Answer

Electrolysis

Question 6

The Travancore army defeated the Dutch at Colachal in:

Accepted Answer

1741 — Battle of Colachal (31 July 1741) — Marthanda Varma's historic victory over the Dutch VOC.

Answer

1721

Answer

1761

Answer

1792

Question 7

Identify false statement(s): (1) Pampas are grasslands in Argentina (2) Sirocco causes blood rain in Italy (3) Bushmen are found in Siberia‌​‍

Accepted Answer

Only 3 — Bushmen (San) are found in the Kalahari region of southern Africa, not Siberia.‌​‍

Answer

Only 1

Answer

1, 2 and 3

Answer

1 and 2

Question 8

Democracy comes from Greek words meaning:‌​‍

Accepted Answer

Demos (people) + Kratos (rule/power) — Greek: demokratia — rule by the people. ‌​‍Originated in Athens (5th C BCE) under Cleisthenes, Pericles.

Answer

Power of kings

Answer

Law and order

Answer

Justice

Question 9

Wien's displacement law λ_max T = b (constant). Constant b ≈:‌​‍

Accepted Answer

2.9 × 10⁻³ m·K — Wien's constant 2.898 × 10⁻³ m·K. ‌​‍Used to find Sun's surface temperature (~5800 K).

Answer

6.63 × 10⁻³⁴

Answer

5.67 × 10⁻⁸

Answer

1.38 × 10⁻²³

Question 10

Nitrogen fixing bacteria in leguminous root nodules:

Accepted Answer

Rhizobium (mutualistic with legumes) — Nitrogenase enzyme. Leghaemoglobin protects nitrogenase from O₂. Free-living: Azotobacter (aerobic), Clostridium (anaerobic).

Answer

Azotobacter

Answer

Clostridium

Answer

Nitrosomonas

HSA Mixed Practice Test #823