VFA Mixed Practice Test #506

Question 1

The Mar Thoma Church in Kerala traces origin to:‌​‍

Accepted Answer

St. Thomas (apostle) tradition — Tradition says St. ‌​‍Thomas arrived at Kodungallur in 52 CE; Mar Thoma Church reformed from Syrian Orthodox in 19th century.

Answer

Portuguese missionaries

Answer

British missionaries

Answer

Dutch missionaries

Question 2

Rusting of iron is a process of:‌​‍

Accepted Answer

Oxidation — Rusting is oxidation of iron: Iron + Oxygen + Moisture → Iron Oxide (rust/Fe₂O₃). ‌​‍It requires both oxygen and water.

Answer

Reduction

Answer

Sublimation

Answer

Fermentation

Question 3

Which social reformer started the movement called 'Sadhujana Paripalana Sangam'?

Accepted Answer

Ayyankali — Ayyankali founded SJPS in 1907.

Answer

Sahodaran Ayyappan

Answer

Sree Narayana Guru

Answer

E.K. Janaki Amma

Question 4

Malayalam classical status:

Accepted Answer

2013 — 2013.

Answer

2004

Answer

2008

Answer

2015

Question 5

What is the functional unit of the kidney?‌​‍

Accepted Answer

Nephron — ~1 million per kidney. ‌​‍Components: Bowman's capsule, PCT, loop of Henle, DCT, collecting duct.

Answer

Neuron

Answer

Alveolus

Answer

Bronchiole

Question 6

Bohr's radius of hydrogen ground state:

Accepted Answer

~0.53 Å (0.0529 nm) — a₀ = ε₀h²/(πme²) = 0.529 × 10⁻¹⁰ m. nth orbit: rn = n²a₀/Z. Energy: En = -13.6Z²/n² eV.

Answer

~1 nm

Answer

~1 m

Answer

~10⁻¹⁵ m

Question 7

Kerala's COVID contact tracing called:‌​‍

Accepted Answer

Kerala model — Kerala model of COVID-19 response praised globally.‌​‍

Answer

Corona fighter

Answer

Aarogya

Answer

E-Health

Question 8

Shape of water (H₂O) molecule is:‌​‍

Accepted Answer

Bent/V-shaped — Two lone pairs on O distort tetrahedral to ~104.5°. Explained by VSEPR.‌​‍

Answer

Linear

Answer

Trigonal planar

Answer

Tetrahedral

Question 9

'Cry over spilt milk' means:‌​‍

Accepted Answer

Regret something that's already done — Cry over spilt milk = waste time regretting something that cannot be undone.‌​‍

Answer

Clean up

Answer

Be sad about dairy

Answer

Waste food

Question 10

The integumentary system, comprising the skin, hair, and nails, performs several vital functions for the human body. Which of the following is NOT a primary function of the integumentary system?

Accepted Answer

D. Production of red blood cells in the dermal layer — The integumentary system protects the body, regulates temperature, prevents water loss, and synthesizes Vitamin D. However, the production of red blood cells (hematopoiesis) is primarily a function of the bone marrow, not the skin. The dermal layer of the skin contains various cells and structures but is not involved in erythropoiesis.

Answer

A. Protection against physical trauma and pathogens

Answer

B. Regulation of body temperature through sweating and vasodilation/constriction

Answer

C. Synthesis of Vitamin D upon exposure to UV radiation

VFA Mixed Practice Test #506