VFA Mixed Practice Test #719

Question 1

A hydraulic lift system uses two pistons, one with a small cross-sectional area (A1) and the other with a larger cross-sectional area (A2). If a force F1 is applied to the smaller piston, causing it to move downwards by a distance d1, how does the force exerted by the larger piston (F2) and its upward displacement (d2) relate to F1 and d1, assuming ideal conditions?

Accepted Answer

B. F2 > F1 and d2 < d1 — According to Pascal's principle, the pressure applied to the small piston (P = F1/A1) is transmitted undiminished to the larger piston. Since the larger piston has a greater area (A2 > A1), it experiences a magnified force (F2 = P * A2, hence F2 > F1). By the principle of conservation of energy, the work input must equal the work output in an ideal system (F1 * d1 = F2 * d2). Therefore, to compensate for the increased force F2, the larger piston must move a proportionally smaller distance (d2 < d1).

Answer

A. F2 = F1 and d2 = d1

Answer

C. F2 < F1 and d2 > d1

Answer

D. F2 = F1 and d2 < d1

Question 2

The two key UN Covenants (1966) complementing UDHR are:‌​‍

Accepted Answer

ICCPR and ICESCR — ICCPR (International Covenant on Civil and Political Rights) + ICESCR (Economic, Social and Cultural Rights) + UDHR = International Bill of Human Rights.‌​‍

Answer

NPT and Kyoto

Answer

UNCLOS and GATT

Answer

Geneva and Hague

Question 3

Kerala's local bodies — Panchayat tiers:‌​‍

Accepted Answer

3 — 3 tiers: Grama, Block, District Panchayat.‌​‍

Answer

4

Answer

5

Answer

2

Question 4

Kasaragod known for:‌​‍

Accepted Answer

Multiple languages — 7+ languages spoken. Northernmost district.‌​‍

Answer

Theyyam

Answer

Backwaters

Answer

Fort

Question 5

First Jnanpith from Kerala:‌​‍

Accepted Answer

G. Sankara Kurup — G. Sankara Kurup (1965) — for Odakkuzhal.‌​‍

Answer

Thakazhi

Answer

Pottekkatt

Answer

MT

Question 6

Umbilical cord vessels:‌​‍

Accepted Answer

2 arteries, 1 vein — Two arteries + one vein.‌​‍

Answer

3 vessels

Answer

1 artery, 1 vein

Answer

2 veins, 1 artery

Question 7

CRISPR is related to:‌​‍

Accepted Answer

Gene editing — CRISPR-Cas9 is a revolutionary gene-editing technology that can modify DNA sequences.‌​‍

Answer

Computing

Answer

Space travel

Answer

Robotics

Question 8

Who was the first woman in India to become a school teacher?

Accepted Answer

A. Savitribai Phule — Savitribai Phule holds this historic distinction as she began teaching in 1848 at the Bhudevi Patil's school in Pune, pioneering women's education in India. The other options are significant but wrong: Kadambini Ganguly was a physician, Anandibai Joshee was a physician, and Fatima Sheikh co-founded India's first school for girls with Savitribai.

Answer

B. Kadambini Ganguly

Answer

C. Anandibai Joshee

Answer

D. Fatima Sheikh

Question 9

A woman experiences indifference towards her family, a sensation as if her internal organs are bearing down and will escape through the vagina, and is ameliorated by vigorous exercise. She also has an aversion to sympathy and desires sour things. Which remedy is indicated?

Accepted Answer

C. Sepia officinalis — Sepia officinalis is known for its keynotes of indifference to loved ones, bearing-down sensation in the pelvic organs, amelioration from vigorous exercise, aversion to sympathy, and a desire for sour foods. Lilium tigrinum also has bearing-down sensations but is often accompanied by religious mania and hurriedness. Platina is characterized by haughtiness and numbness. Murex purpurea is another uterine remedy but without the strong mental picture of Sepia.

Answer

A. Lilium tigrinum

Answer

B. Platina

Answer

D. Murex purpurea

Question 10

Sum of first 15 even:

Accepted Answer

240 — n(n+1)=15×16=240.

Answer

120

Answer

225

Answer

210

VFA Mixed Practice Test #719