VFA Mixed Practice Test #691

Question 1

Gir National Park famous for:‌​‍

Accepted Answer

Asiatic Lion — Gir, Gujarat — only home of Asiatic Lion.‌​‍

Answer

Elephant

Answer

Rhinoceros

Answer

Bengal Tiger

Question 2

Mathrubhumi founder K.P. Kesava Menon was:‌​‍

Accepted Answer

Freedom fighter — Freedom fighter and journalist.‌​‍

Answer

Actor

Answer

Politician

Answer

Saint

Question 3

Local anesthetics like Lidocaine block nerve impulse conduction by interfering with the influx of which ion into the nerve cell, thereby stabilizing the neuronal membrane?

Accepted Answer

C. Sodium ions — Local anesthetics like Lidocaine exert their effect by reversibly binding to and blocking voltage-gated sodium channels in the neuronal membrane. This action prevents the influx of sodium ions, thereby inhibiting the initiation and propagation of action potentials along nerve fibers and leading to a loss of sensation in the targeted area.

Answer

A. Potassium ions

Answer

B. Calcium ions

Answer

D. Chloride ions

Question 4

The Simon Commission visited India in:

Accepted Answer

1928 — All-white Simon Commission (1928) was boycotted; Lala Lajpat Rai was fatally injured at Lahore.

Answer

1919

Answer

1935

Answer

1942

Question 5

The demonetisation of ₹500 and ₹1000 notes was announced on:‌​‍

Accepted Answer

8 November 2016 — PM Modi announced demonetisation on 8 November 2016 at 8 PM, effective midnight. ‌​‍Affected ~86% of currency in circulation.

Answer

1 July 2017

Answer

8 November 2017

Answer

15 November 2016

Question 6

Normal urine output/day:‌​‍

Accepted Answer

1-1.5 L — 1-1.5 litres.‌​‍

Answer

5 L

Answer

3 L

Answer

500 ml

Question 7

A 6-month-old infant receives antibodies from their mother through breastfeeding, providing temporary protection against certain infections. This type of immunity is known as:

Accepted Answer

C. Naturally acquired passive immunity — Naturally acquired passive immunity occurs when antibodies are transferred from a mother to her child, either across the placenta during pregnancy or through breast milk. This provides immediate but temporary protection as the infant's own immune system is not actively producing antibodies. Active immunity involves the body's own immune response, while artificial immunity involves medical intervention like vaccines or antibody injections.

Answer

A. Naturally acquired active immunity

Answer

B. Artificially acquired active immunity

Answer

D. Artificially acquired passive immunity

Question 8

Largest desert in the world:

Accepted Answer

Antarctic (cold desert) — ~14 million km². Sahara is largest hot desert (~9.2 million km²). Desert = <250 mm/year precipitation.

Answer

Sahara

Answer

Arabian

Answer

Gobi

Question 9

'Khasakkinte Ithihasam' was written by:‌​‍

Accepted Answer

O.V. Vijayan — O.V. ‌​‍Vijayan wrote Khasakkinte Ithihasam (The Legends of Khasak, 1969), a landmark modernist Malayalam novel.

Answer

Basheer

Answer

M.T. Vasudevan Nair

Answer

S.K. Pottekkatt

Question 10

A magnet's magnetic field is strongest at:‌​‍

Accepted Answer

The poles — Magnetic field lines are densest near the poles.‌​‍

Answer

Uniformly everywhere

Answer

The middle of the magnet

Answer

The centre

VFA Mixed Practice Test #691