Plus 2 Lecturer Mixed Practice Test #521

Question 1

Ovulation in human female occurs around:‌​‍

Accepted Answer

Day 14 of cycle (LH surge) — Mid-cycle ovulation. ‌​‍Menstrual cycle ~28 days average. Corpus luteum secretes progesterone.

Answer

Day 28

Answer

Day 1

Answer

Day 7

Question 2

Hydrolysis of fats and oils with NaOH giving soap is called:

Accepted Answer

Saponification — Saponification: fat + NaOH → glycerol + sodium salt of fatty acid (soap).

Answer

Esterification

Answer

Hydrogenation

Answer

Oxidation

Question 3

Sree Narayana Guru's declaration of 'One Caste, One Religion, One God for Man' was a cornerstone of the Kerala Renaissance. Which of the following best exemplifies the practical implementation of this philosophy to challenge social stratification and promote human dignity in early 20th century Kerala?

Accepted Answer

C. Advocating for universal education and the establishment of schools accessible to all castes, irrespective of their social standing. — Sree Narayana Guru profoundly believed in education as a primary means for social upliftment and achieving human dignity. His advocacy for and establishment of schools accessible to all castes directly challenged the existing caste-based social stratification by providing equal opportunities for knowledge and progress. While Aruvippuram Pratishta challenged religious discrimination and the Sarvadharma Sammelanam promoted religious harmony, universal education offered a more comprehensive and practical pathway to dismantle social barriers and empower individuals across all communities. SNDP was

Answer

A. The Aruvippuram Pratishta, where he consecrated a Shiva idol, challenging the Brahminical monopoly over religious rituals.

Answer

B. The formation of the Sree Narayana Dharma Paripalana Yogam (SNDP) to unite the Ezhava community for collective action.

Answer

D. Organizing the 'Sarvadharma Sammelanam' at Aluva, emphasizing religious harmony and the common essence of all faiths.

Question 4

Saponin glycosides are known for their characteristic property of forming a stable froth when shaken with water. This property is primarily attributed to their:

Accepted Answer

B. Ability to lower surface tension of water due to their amphiphilic nature. — Saponins are amphiphilic glycosides, meaning they possess both hydrophilic (sugar) and lipophilic (aglycone) parts. This structure allows them to act as surfactants, effectively lowering the surface tension of water and enabling the formation of a stable, persistent froth. The other options do not accurately describe the chemical basis for the frothing property of saponins.

Answer

A. High molecular weight and complex sugar moieties.

Answer

C. Strong acidic properties, leading to effervescence.

Answer

D. Interaction with proteins, causing denaturation and foam formation.

Question 5

Mullaperiyar Dam on:‌​‍

Accepted Answer

Periyar — Periyar River in Idukki.‌​‍

Answer

Pamba

Answer

Muvattupuzha

Answer

Chalakudy

Question 6

Where did Mahavira die (attain Nirvana)?‌​‍

Accepted Answer

Pavapuri (c. 527 BCE) — Mahavira died at Pavapuri (Bihar) ~527 BCE. Pavapuri is major Jain pilgrimage site.

Answer

Kushinagar

Answer

Sarnath

Answer

Bodh Gaya

Question 7

Antonym of WEAK:

Accepted Answer

Strong — Weak ↔ strong.

Answer

Feeble

Answer

Fragile

Answer

Frail

Question 8

A concave lens has power:‌​‍

Accepted Answer

Negative — Diverging (concave) lenses have negative power; converging (convex) have positive.‌​‍

Answer

Positive

Answer

Zero

Answer

Depends on size only

Question 9

A novel drug compound formulated as an aqueous solution exhibits significant degradation when exposed to light, leading to a visible color change. This type of degradation is primarily due to:

Accepted Answer

C. Photolysis — Photolysis is the chemical decomposition or degradation of a compound caused by exposure to light energy. The observation of a color change upon light exposure is a classic indication of photolytic degradation. Hydrolysis is degradation by water, oxidation by oxygen, and racemization is the interconversion of enantiomers, none of which are primarily triggered by light exposure in this manner.

Answer

A. Hydrolysis

Answer

B. Oxidation

Answer

D. Racemization

Question 10

Vigilance and Anti-Corruption Bureau Kerala:

Accepted Answer

Statutory — State vigilance agency.

Answer

Political

Answer

Administrative

Answer

None

Plus 2 Lecturer Mixed Practice Test #521