VFA Mixed Practice Test #407

Question 1

Kozhikode historical importance:

Accepted Answer

Vasco da Gama landing — 1498. Spice trade hub.

Answer

Capital of Kerala

Answer

British headquarters

Answer

Dutch capital

Question 2

Eye's lens:

Accepted Answer

Converging — Biconvex lens.

Answer

Diverging

Answer

Plane

Answer

Concave

Question 3

A laboratory technician is performing a preliminary screening for the presence of alkaloids in a plant extract. Which of the following reagents is commonly used as a general precipitating reagent for alkaloids, forming characteristic precipitates?

Accepted Answer

C. Mayer's reagent — Mayer's reagent (potassium mercuric iodide) is a widely used general reagent for the detection of alkaloids. It forms a creamy white precipitate with most alkaloids due to the formation of alkaloid-iodide complexes. Benedict's and Fehling's reagents are used for reducing sugars, while Biuret reagent is used for proteins.

Answer

A. Benedict's reagent

Answer

B. Fehling's solution

Answer

D. Biuret reagent

Question 4

A student scores high on Sternberg's Sternberg Triarchic Abilities Test (STAT) in the 'practical intelligence' component. Which of the following scenarios BEST illustrates this type of intelligence?

Accepted Answer

C. Adapting to a new school environment by learning unwritten social norms. — Sternberg's practical intelligence refers to the ability to apply knowledge to real-world situations and adapt to environmental demands. Scenario C exemplifies this by describing the student's skill in navigating social contexts, a hallmark of practical intelligence. The other options align with analytical intelligence (A), creative intelligence (B), or rote memorization (D).

Answer

A. Solving complex algebraic equations quickly.

Answer

B. Composing a poem using metaphors and rhymes.

Answer

D. Memorizing historical dates and events for a test.

Question 5

Human heart is:

Accepted Answer

Four-chambered — 2 atria, 2 ventricles — Complete double circulation. Fish: 2-chambered. Amphibians/most reptiles: 3. Birds, mammals: 4.

Answer

Two-chambered

Answer

Three-chambered

Answer

No chambers

Question 6

The State Human Rights Commission is constituted under which section of the Protection of Human Rights Act, 1993?‌​‍

Accepted Answer

Section 21 — Section 21 of the PHRA, 1993 empowers state governments to constitute a State Human Rights Commission.‌​‍

Answer

Section 3

Answer

Section 12

Answer

Section 31

Question 7

The chemical symbol of Sodium is:‌​‍

Accepted Answer

Na — Sodium = Na (from Latin 'Natrium'). Potassium = K (from 'Kalium').‌​‍

Answer

So

Answer

Sd

Answer

No

Question 8

Antacids typically contain:‌​‍

Accepted Answer

Mg(OH)₂, Al(OH)₃, NaHCO₃ — Neutralise stomach HCl. ‌​‍Ranitidine blocks H₂ receptor. Omeprazole blocks proton pump.

Answer

HCl

Answer

H₂SO₄

Answer

KOH

Question 9

Dialysis replaces function of:‌​‍

Accepted Answer

Kidney — Artificial kidney filtration.‌​‍

Answer

Heart

Answer

Lung

Answer

Liver

Question 10

Sabarimala temple is located in which district of Kerala?

Accepted Answer

Pathanamthitta — Sabarimala temple (Lord Ayyappa) is located in Pathanamthitta district. It is one of the most visited pilgrimage centres in the world.

Answer

Idukki

Answer

Kottayam

Answer

Alappuzha

VFA Mixed Practice Test #407