VFA Mixed Practice Test #718

Question 1

Laughing gas is:‌​‍

Accepted Answer

N₂O — N₂O (Nitrous Oxide) = Laughing Gas. Used as anaesthetic.‌​‍

Answer

CO

Answer

CO₂

Answer

NO

Question 2

Kozhikode is also known as:

Accepted Answer

City of Spices — Kozhikode is called the 'City of Spices' due to its historical role as a major spice trading port. 'Queen of Arabian Sea' = Kochi. 'Venice of the East' = Alappuzha.

Answer

City of Seven Hills

Answer

Queen of Arabian Sea

Answer

Venice of the East

Question 3

How many rivers in Kerala have main-stream length exceeding 15 km?‌​‍

Accepted Answer

44 — Kerala has 44 rivers (41 west-flowing, 3 east-flowing) over 15 km long.‌​‍

Answer

41

Answer

38

Answer

30

Question 4

Swathi Thirunal ruled:‌​‍

Accepted Answer

Travancore — Musician king of Travancore (1829-46).‌​‍

Answer

Kochi

Answer

Cochin

Answer

Malabar

Question 5

Which work contains the earliest reference to the town of Quilon?‌​‍

Accepted Answer

Topographia Indica Christiana — Cosmas Indicopleustes' Topographia Indica Christiana (6th c.) mentions Quilon (Male).‌​‍

Answer

Periplus of the Erythraean Sea

Answer

Tao-i-Chiliio

Answer

Si-Yu-Ki

Question 6

PSLV stands for:‌​‍

Accepted Answer

Polar Satellite Launch Vehicle — PSLV (Polar Satellite Launch Vehicle) is ISRO's workhorse rocket — most reliable.‌​‍

Answer

Payload Satellite Launch Vehicle

Answer

Primary Space Launch Vehicle

Answer

Permanent Satellite Launch Vehicle

Question 7

Humayun was defeated by Sher Shah Suri at the Battles of:‌​‍

Accepted Answer

Chausa (1539) and Kanauj (1540) — Humayun spent 15 years in exile in Persia. ‌​‍Recaptured Delhi in 1555 with Persian help; died 1556 (fell from library stairs).

Answer

Panipat

Answer

Talikota

Answer

Plassey

Question 8

Many drugs exert their therapeutic effects by inhibiting specific enzymes. If a drug acts as a competitive inhibitor, what effect would increasing the substrate concentration typically have on the enzyme's activity in the presence of the drug?

Accepted Answer

C. Overcome the inhibition — Competitive inhibitors bind to the enzyme's active site, competing with the natural substrate. Increasing the substrate concentration can outcompete the inhibitor for the active site, thereby overcoming the inhibition and allowing the enzyme to approach its maximal velocity (Vmax). Competitive inhibition increases the apparent Km but does not alter Vmax.

Answer

A. Decrease the Vmax

Answer

B. Increase the Km

Answer

D. Have no effect on the enzyme activity

Question 9

Kerala Lockdown record:‌​‍

Accepted Answer

Smooth handling via community kitchens (Kudumbashree) — Global recognition for community response.‌​‍

Answer

Average

Answer

Poor handling

Answer

Strict only

Question 10

Kerala assembly term:

Accepted Answer

5 years — 5 years — same as other states.

Answer

4 years

Answer

6 years

Answer

7 years

VFA Mixed Practice Test #718