HSA Mixed Practice Test #412

Question 1

Article ___ lays down that there shall be a Public Service Commission for the Union and one for each State:

Accepted Answer

Article 315 — Article 315 establishes Union and State PSCs.

Answer

Article 280

Answer

Article 324

Answer

Article 356

Question 2

The Indian Parliamentary System (Cabinet-Legislature link) is modelled on:‌​‍

Accepted Answer

UK (Westminster model) — India's parliamentary democracy follows the British Westminster model — PM and Cabinet responsible to Lok Sabha.‌​‍

Answer

Switzerland

Answer

France

Answer

USA

Question 3

Observing various national and state education days (like National Education Day or Teachers' Day) is an integral part of the school calendar. From an educator's perspective, what is the primary benefit of regularly engaging students in activities related to these observances?

Accepted Answer

C. To instill values, promote awareness about the significance of education, and inspire future generations towards nation-building. — The primary benefit of observing education-related days for educators is to move beyond mere factual recall. These observances serve as powerful platforms to instill core values, raise awareness about the transformative power of education, honor the contributions of educational pioneers, and inspire students to become responsible citizens and future leaders, thereby contributing to nation-building. While other options might be secondary outcomes, they do not capture the core pedagogical and societal purpose.

Answer

A. To provide a break from regular academic routines and offer entertainment.

Answer

B. To enhance students' general knowledge about important personalities and dates.

Answer

D. To fulfill mandatory curriculum requirements set by educational boards.

Question 4

Tipu Sultan was killed during the:‌​‍

Accepted Answer

Fourth Anglo-Mysore War — Tipu Sultan died fighting the British at the Siege of Srirangapatnam on 4 May 1799.‌​‍

Answer

First Anglo-Mysore War

Answer

Second Anglo-Mysore War

Answer

Third Anglo-Mysore War

Question 5

Aspirin (acetylsalicylic acid) is known to undergo hydrolysis, especially in the presence of moisture or heat, leading to the formation of salicylic acid and acetic acid. Which functional group in aspirin is primarily responsible for this degradation pathway?

Accepted Answer

C. Ester group — Aspirin is an ester formed from salicylic acid and acetic anhydride. The ester functional group (-COO-) is highly susceptible to hydrolysis, which breaks the molecule into its constituent salicylic acid and acetic acid. The carboxyl group, phenolic hydroxyl, and benzene ring are stable under these specific degradation conditions.

Answer

A. Carboxyl group

Answer

B. Phenolic hydroxyl group

Answer

D. Benzene ring

Question 6

The highest point of a transverse wave is called the:‌​‍

Accepted Answer

Crest — Crest = peak (highest); trough = lowest point of a transverse wave.‌​‍

Answer

Antinode

Answer

Trough

Answer

Node

Question 7

Bowman's capsule:‌​‍

Accepted Answer

Filters blood — Glomerular filtration.‌​‍

Answer

Secretes

Answer

Reabsorbs

Answer

Stores

Question 8

Which Mauryan emperor embraced Buddhism after the Kalinga War?‌​‍

Accepted Answer

Ashoka — Ashoka embraced Buddhism after the bloody Kalinga War (c. 261 BCE).‌​‍

Answer

Bindusara

Answer

Dasharatha

Answer

Chandragupta Maurya

Question 9

The gas used in fire extinguishers is:‌​‍

Accepted Answer

Carbon Dioxide — Carbon Dioxide (CO₂) is used in fire extinguishers because it is heavier than air, non-combustible, and smothers the fire by cutting off oxygen supply.‌​‍

Answer

Oxygen

Answer

Hydrogen

Answer

Nitrogen

Question 10

A 6-month-old infant receives routine vaccinations as per the national immunization schedule. This type of immunity, where the body actively produces antibodies in response to an antigen, is known as:

Accepted Answer

B. Artificial active immunity — Artificial active immunity is acquired through vaccination, where the body is exposed to a weakened or inactive form of a pathogen (antigen) and actively produces its own antibodies and memory cells. Natural passive immunity is transferred from mother to child (e.g., through breast milk). Natural active immunity develops after natural exposure to a pathogen and subsequent infection. Artificial passive immunity involves receiving pre-formed antibodies, such as through antitoxin administration.

Answer

A. Natural passive immunity

Answer

C. Natural active immunity

Answer

D. Artificial passive immunity

HSA Mixed Practice Test #412