HSA Mixed Practice Test #1013

Question 1

Collective noun for wolves:‌​‍

Accepted Answer

Pack — A pack of wolves.‌​‍

Answer

Pride

Answer

School

Answer

Flock

Question 2

Rule of Law was articulated by:‌​‍

Accepted Answer

A. V. Dicey — Dicey's 'Introduction to the Study of the Law of the Constitution' (1885) — three meanings: supremacy of law, equality before law, rights via judicial decisions.‌​‍

Answer

Kant

Answer

Rousseau

Answer

John Locke

Question 3

An unknown element 'Z' is found to have its last electron entering a p-orbital, and it readily forms an anion with a -1 charge. Based on this information, which of the following statements is most likely true about element 'Z'?

Accepted Answer

C. It is a halogen, typically found in Group 17 of the periodic table. — An element with its last electron entering a p-orbital belongs to the p-block. Forming an anion with a -1 charge signifies that the element needs one electron to achieve a stable octet configuration. This characteristic property belongs to Group 17 elements, also known as halogens. Noble gases are chemically inert and do not readily form ions, s-block elements typically form cations, and d-block elements (transition metals) usually form cations with variable valencies.

Answer

A. It belongs to the s-block and is a highly reactive metal.

Answer

B. It is a noble gas, characterized by its chemical inertness.

Answer

D. It belongs to the d-block and exhibits variable valency.

Question 4

Which gas is most abundant in dry atmospheric air?‌​‍

Accepted Answer

Nitrogen — N₂ is 78.08%; O₂ 20.95%; Ar 0.93%; CO₂ 0.04%.‌​‍

Answer

Argon

Answer

CO₂

Answer

Oxygen

Question 5

Newton's second law gives F = ma in which frame?‌​‍

Accepted Answer

Inertial frames — In non-inertial frames, pseudo-forces must be added. ‌​‍F=ma strictly valid only in inertial frames.

Answer

Non-inertial frames only

Answer

Any frame

Answer

Rotating frame

Question 6

Ultrasound has frequency above:‌​‍

Accepted Answer

20,000 Hz — Ultrasound = above 20,000 Hz (above human hearing range). ‌​‍Used in medical scans (sonography).

Answer

20 Hz

Answer

200 Hz

Answer

2,000 Hz

Question 7

Ohm's law states:

Accepted Answer

V = IR at constant T — Linear between V and I (ohmic conductors). Not obeyed by semiconductors, diodes, bulbs.

Answer

V = I²R

Answer

V/I increases

Answer

I = V²

Question 8

Ibn Battuta, who wrote Rihla describing Muhammad-bin-Tughlaq's Delhi, was a:‌​‍

Accepted Answer

Moroccan traveller (14th century) — Travelled 1333-1347 in India. ‌​‍Appointed Qazi of Delhi. Described postal system (dak), slave trade, markets. ‌​‍Sent as envoy to China.

Answer

Chinese monk

Answer

Persian historian

Answer

Portuguese

Question 9

Which age is divided into Palaeolithic, Mesolithic and Neolithic periods based on stone tool techniques?‌​‍

Accepted Answer

Stone Age — The Stone Age is classified into Palaeolithic (old), Mesolithic (middle) and Neolithic (new) periods.‌​‍

Answer

Bronze Age

Answer

Copper Age

Answer

Iron Age

Question 10

Article 371 deals with:‌​‍

Accepted Answer

Special provisions for states — Special provisions for various states (Maharashtra, Gujarat, Nagaland, etc.).‌​‍

Answer

Emergency

Answer

Amendment

Answer

UTs

HSA Mixed Practice Test #1013