VFA Mixed Practice Test #135

Question 1

A fuse works by:‌​‍

Accepted Answer

Melting and breaking the circuit during excess current — Fuses have low melting point; excess current melts them, protecting equipment.‌​‍

Answer

Reflecting current

Answer

Increasing resistance

Answer

Storing charge

Question 2

Municipal Corporations in Kerala:‌​‍

Accepted Answer

6 — 6: TVM, Kochi, Kozhikode, Thrissur, Kollam, Kannur.‌​‍

Answer

4

Answer

5

Answer

7

Question 3

Necrophilia is:‌​‍

Accepted Answer

the abnormal fear of death and corpses — Necrophilia/necrophobia relates to death and corpses.‌​‍

Answer

the abnormal fear of darkness

Answer

the abnormal fear of fire

Answer

the abnormal fear of water

Question 4

Cobalt is an essential trace element for human health. What is its primary role in the body?

Accepted Answer

C. Constituent of Vitamin B12. — Cobalt is a vital component of Vitamin B12 (cobalamin), a complex organic molecule essential for various metabolic processes, including DNA synthesis, fatty acid metabolism, and amino acid metabolism. Deficiency of Vitamin B12 can lead to megaloblastic anemia and neurological problems. The other roles are for iodine, iron, and chromium respectively.

Answer

A. Component of thyroid hormones.

Answer

B. Essential for hemoglobin synthesis.

Answer

D. Involved in carbohydrate metabolism.

Question 5

The year in which Sree Narayana Guru's famous Sivagiri pilgrimage was formally started (by his directive) is:

Accepted Answer

1928 (realised posthumously from 1933) — Narayana Guru advised the Sivagiri pilgrimage in 1928; the first pilgrimage was in 1933, after his death.

Answer

1888

Answer

1903

Answer

1936

Question 6

A patient is diagnosed with severe metabolic acidosis. Which of the following physiological compensatory mechanisms would be the MOST immediate and significant in attempting to restore the blood pH towards its normal range?

Accepted Answer

B. Hyperventilation to reduce arterial PCO2. — Hyperventilation is the most immediate and significant compensatory mechanism for metabolic acidosis. By increasing the rate and depth of breathing, the body rapidly expels more carbon dioxide, thereby reducing arterial PCO2 and shifting the bicarbonate buffer system equilibrium to decrease hydrogen ion concentration and raise pH. Increased renal reabsorption of bicarbonate ions and enhanced secretion of aldosterone are renal compensatory mechanisms, which are slower to act compared to respiratory compensation. Activation of the thirst mechanism is related to fluid balance and osmoregulation,

Answer

A. Increased renal reabsorption of bicarbonate ions.

Answer

C. Enhanced secretion of aldosterone to increase H+ excretion.

Answer

D. Activation of the thirst mechanism to increase fluid intake.

Question 7

Moseley's law relates:‌​‍

Accepted Answer

Characteristic X-ray frequency to atomic number — √ν ∝ (Z-1). Reorganised periodic table by atomic number.‌​‍

Answer

Temperature to pressure

Answer

Volume to moles

Answer

Force to acceleration

Question 8

KPSC chair appointed by:‌​‍

Accepted Answer

Governor — Governor.‌​‍

Answer

Chief Secretary

Answer

President

Answer

CM

Question 9

The Polish astronomer-priest who proposed the heliocentric model of the solar system was:

Accepted Answer

Nicolaus Copernicus — Copernicus' 'De Revolutionibus' (1543) placed the Sun at the centre.

Answer

Galileo Galilei

Answer

Johannes Kepler

Answer

Tycho Brahe

Question 10

A teacher aims to enhance students' analytical thinking, ability to identify bias, and understanding of different perspectives on contemporary issues. Which literary form would be most effective for achieving these specific learning objectives in a classroom setting?

Accepted Answer

C. News articles and editorials, as they present current events and often reflect diverse viewpoints and arguments. — News articles and editorials are specifically designed to report on current events and present arguments or opinions, making them ideal for analyzing different perspectives, identifying rhetorical devices, and discerning potential biases. While other literary forms have their own educational merits, they do not as directly target the objectives of understanding contemporary issues and identifying bias as effectively as current journalistic texts.

Answer

A. Epic poetry, as it introduces complex narratives and historical contexts.

Answer

B. Fairy tales, which provide moral lessons and simple plot structures for analysis.

Answer

D. Autobiographies, which offer personal insights and chronological life events.

VFA Mixed Practice Test #135