VFA Mixed Practice Test #497

Question 1

Which Kerala lake is the deepest freshwater lake in the state?

Accepted Answer

Sasthamkotta — Sasthamkotta Lake in Kollam is the largest freshwater lake in Kerala and one of the deepest.

Answer

Vembanad

Answer

Ashtamudi

Answer

Manasarovar

Question 2

Mitochondria are called 'powerhouse' because:‌​‍

Accepted Answer

Generate ATP via oxidative phosphorylation — Double membrane. ‌​‍Inner folded into cristae. Own DNA, ribosomes (endosymbiont origin).

Answer

Produce oxygen

Answer

Synthesise proteins

Answer

Store food

Question 3

Dengue is caused by:‌​‍

Accepted Answer

Virus (4 serotypes) transmitted by Aedes aegypti — Daytime mosquito biter. ‌​‍Breakbone fever. Severe: hemorrhagic fever, shock syndrome. ‌​‍No specific cure.

Answer

Fungus

Answer

Bacteria

Answer

Plasmodium

Question 4

Air India Maharaja return:‌​‍

Accepted Answer

Tata merged AI+Vistara 2024 — Merger completed Nov 2024.‌​‍

Answer

Only AI

Answer

Only Vistara

Answer

None

Question 5

Hemis NP:

Accepted Answer

Ladakh (snow leopard) — Ladakh.

Answer

HP

Answer

Sikkim

Answer

UK

Question 6

A 15-year-old girl spends hours trying on different outfits, experimenting with various hairstyles, and frequently changes her friend group, often expressing confusion about 'who she really is'. This behavior is most indicative of which developmental stage?

Accepted Answer

C. Navigating identity versus role confusion — The described behaviors are classic manifestations of Erikson's stage of Identity versus Role Confusion, where adolescents actively explore various aspects of their identity to form a coherent sense of self. Developing autonomy occurs earlier, resolving the Oedipus complex is associated with early childhood, and achieving generativity is a much later adult stage.

Answer

A. Developing a sense of autonomy

Answer

B. Resolving the Oedipus complex

Answer

D. Achieving generativity

Question 7

Bronze is an alloy of:

Accepted Answer

Cu + Sn — Bronze ≈ 88% copper + 12% tin; used for statues, bearings.

Answer

Cu + Zn

Answer

Cu + Al

Answer

Fe + Ni

Question 8

In a rural setting without access to advanced water purification, what is the most reliable method for making drinking water safe for consumption?

Accepted Answer

D. Boiling the water vigorously for at least one minute — Boiling water vigorously for at least one minute effectively kills most disease-causing bacteria, viruses, and parasites, making it the most reliable method in such settings. Filtering through cloth removes larger particles but not microorganisms, adding bleach requires precise measurement and can be risky, and storing water only prevents recontamination, not purification.

Answer

A. Filtering through a clean cloth

Answer

B. Adding a small amount of household bleach

Answer

C. Storing water in a sealed container

Question 9

India's Semiconductor Mission target:‌​‍

Accepted Answer

All of these — All are components of mission.‌​‍

Answer

First fab in Dholera

Answer

₹76000 Cr scheme

Answer

10 fabs

Question 10

The pH of pure water is:‌​‍

Accepted Answer

7 — Pure water has pH 7 (neutral).‌​‍

Answer

0

Answer

5

Answer

14

VFA Mixed Practice Test #497