VFA Mixed Practice Test #32

Question 1

Which of the following is the primary buffer system in the blood that helps maintain physiological pH?

Accepted Answer

A. Bicarbonate buffer system — The bicarbonate buffer system is the primary buffer in blood due to its high concentration and rapid response to pH changes. Other buffers like hemoglobin and proteins also contribute but are secondary in maintaining systemic pH. The phosphate buffer system is more active in urine and intracellular fluids.

Answer

B. Phosphate buffer system

Answer

C. Protein buffer system

Answer

D. Hemoglobin buffer system

Question 2

Doppler effect observed frequency when source approaches stationary observer:‌​‍

Accepted Answer

Higher than actual — f' = f(v/(v - v_s)) for approaching source. ‌​‍Used in radar, astronomy (redshift).

Answer

Same

Answer

Lower

Answer

Zero

Question 3

India smartphone market:‌​‍

Accepted Answer

Samsung/Xiaomi/Vivo — Multiple brands.‌​‍

Answer

BlackBerry

Answer

Nokia

Answer

Apple dominant

Question 4

Which among the following is NOT a primary function of the Directorate of Public Instructions (DPI) in Kerala?

Accepted Answer

C. Monitoring school sanitation standards under SSA's 'Total Sanitation Campaign' component — Primary functions of DPI include textbook implementation (SCERT), recruitment exams (PSC), and SSA-funded training. Monitoring school sanitation standards is a core function of SSA (under Total Sanitation Campaign), not DPI. Thus, option C is the correct answer (function NOT primary to DPI).

Answer

A. Implementing SCERT-prescribed textbooks and syllabus across government schools

Answer

B. Conducting teacher recruitment exams (like HSA) via PSC and LBS

Answer

D. Coordinating SSA-funded in-service training programmes for Headmasters and teachers

Question 5

NOTA option introduced:

Accepted Answer

2013 — 2013 after SC ruling.

Answer

2014

Answer

2019

Answer

2009

Question 6

Master gland:‌​‍

Accepted Answer

Pituitary — Pituitary — controls other glands.‌​‍

Answer

Thyroid

Answer

Liver

Answer

Adrenal

Question 7

Vitamin B12 mainly from:‌​‍

Accepted Answer

Animal foods — Mostly animal sources; supplement for vegetarians.‌​‍

Answer

Sunlight

Answer

Water

Answer

Plants

Question 8

PM Kisan gives:‌​‍

Accepted Answer

₹6,000/yr — ₹6,000/year in 3 instalments.‌​‍

Answer

₹2,000/yr

Answer

₹4,000/yr

Answer

₹10,000/yr

Question 9

What is the address format for IP version 4?‌​‍

Accepted Answer

32-bit, 4 octets — ~4.3 billion addresses. ‌​‍IPv6: 128-bit (2^128 addresses). IPv4 exhaustion led to IPv6 adoption. ‌​‍Dual-stack transition.

Answer

8-bit

Answer

64-bit

Answer

128-bit

Question 10

Gandhi Jayanti is celebrated on:‌​‍

Accepted Answer

2 October — Gandhi Jayanti (Mahatma Gandhi's birthday) is on 2 October. ‌​‍It is also the International Day of Non-Violence (UN). 30 January = Martyrs' Day (assassination).

Answer

26 January

Answer

15 August

Answer

30 January

VFA Mixed Practice Test #32