VFA Mixed Practice Test #739

Question 1

Dengue transmitted by:‌​‍

Accepted Answer

Aedes — Aedes aegypti mosquito. Daytime biter.‌​‍

Answer

Anopheles

Answer

Housefly

Answer

Rat

Question 2

Abhijit Banerjee won the Nobel in Economics in:‌​‍

Accepted Answer

2019 — Abhijit Banerjee (Kolkata-born) shared 2019 Nobel with Esther Duflo (his wife) and Michael Kremer for RCT-based poverty research.‌​‍

Answer

2018

Answer

2017

Answer

2020

Question 3

Kepler's laws of planetary motion describe that:‌​‍

Accepted Answer

Planets' speeds vary with distance from the Sun — Kepler's 2nd and 3rd laws relate orbital speed to distance from the Sun.‌​‍

Answer

Earth is the centre of the universe

Answer

All planets have the same orbital period

Answer

Planets move in uniform circular orbits

Question 4

Lasers produce:‌​‍

Accepted Answer

Coherent, monochromatic, collimated, intense light — Stimulated emission (Einstein, 1917). ‌​‍Population inversion needed. Nobel Townes, Basov, Prokhorov (1964).

Answer

X-rays only

Answer

Incoherent light

Answer

Heat only

Question 5

A batch of a large volume parenteral (LVP) solution has been manufactured. Which test is crucial to perform to ensure the absence of fever-inducing substances that could cause adverse reactions in patients?

Accepted Answer

C. Pyrogen test — The pyrogen test is specifically designed to detect the presence of pyrogens, which are fever-inducing substances, primarily bacterial endotoxins, that can cause adverse reactions if administered parenterally. The sterility test checks for viable microorganisms, the particulate matter test for physical contaminants, and pH determination for chemical stability, none of which directly address pyrogens.

Answer

A. Sterility test

Answer

B. Particulate matter test

Answer

D. pH determination

Question 6

An analogous structure (e.g., insect wing vs bird wing) indicates:‌​‍

Accepted Answer

Convergent evolution (similar function, different origin) — Analogous organs evolved independently but share function due to similar selection pressures.‌​‍

Answer

Common ancestry

Answer

No evolution

Answer

Nothing

Question 7

Kerala, being a coastal state in India, is highly vulnerable to the impacts of climate change. From the perspective of climate change adaptation strategies, which of the following measures would be most effective in building long-term resilience against rising sea levels and extreme weather events in the state?

Accepted Answer

B. Implementing robust early warning systems for cyclones and floods, alongside developing climate-resilient infrastructure and sustainable land-use planning. — Adaptation strategies focus on adjusting to actual or expected future climate conditions and their effects. Implementing robust early warning systems, developing climate-resilient infrastructure (e.g., seawalls, elevated buildings), and sustainable land-use planning (e.g., restricting construction in vulnerable coastal zones) are direct and effective adaptation measures for a coastal state like Kerala. Options A and C primarily relate to mitigation (reducing greenhouse gas emissions), while D is a partial measure and not comprehensive for coastal vulnerability.

Answer

A. Investing heavily in fossil fuel-based energy infrastructure to meet growing energy demands.

Answer

C. Focusing solely on reducing industrial greenhouse gas emissions from major factories within the state.

Answer

D. Promoting large-scale afforestation programs in remote, non-coastal areas only.

Question 8

Kepler's second law (equal areas in equal times) implies conservation of:

Accepted Answer

Angular momentum — Equal area rate means dA/dt = L/(2m) = constant, so L conserved (central force).

Answer

Energy

Answer

Linear momentum

Answer

Mass

Question 9

The RTE Act, 2009 emphasizes the 'no detention policy' up to which class to ensure continuous learning for all children?

Accepted Answer

B. Class 8 — The RTE Act, 2009 mandates the 'no detention policy' up to Class 8 to prevent children from being held back due to academic failures, promoting inclusive education. After Class 8, schools can detain students based on performance.

Answer

A. Class 5

Answer

C. Class 10

Answer

D. Class 12

Question 10

State Veteran award:‌​‍

Accepted Answer

Sahitya Akademi Distinguished Fellowship — Various state-level awards.‌​‍

Answer

All

Answer

None

Answer

Only one

VFA Mixed Practice Test #739