VFA Mixed Practice Test #133

Question 1

A primary school teacher wants to teach students about different types of fruits and vegetables, emphasizing their colors, shapes, and textures. Which of the following teaching aids would be most appropriate for this lesson?

Accepted Answer

C. Real fruits and vegetables or realistic models. — Real fruits and vegetables (or realistic models) provide a multi-sensory learning experience, allowing students to see, touch, and even smell the items. This direct interaction is crucial for understanding colors, shapes, and textures effectively in primary grades, offering a richer experience than purely visual aids like flashcards or digital images.

Answer

A. Flashcards with pictures of fruits and vegetables.

Answer

B. A projector displaying images from a digital library.

Answer

D. An educational video showcasing a farm and harvesting process.

Question 2

The structure of DNA was proposed in:‌​‍

Accepted Answer

1953 — James Watson and Francis Crick proposed the double-helix model in April 1953 (using Rosalind Franklin's X-ray data).‌​‍

Answer

1970

Answer

1998

Answer

1905

Question 3

Cube with side 3 cm painted. Cut into 1cm cubes. Total:

Accepted Answer

27 — 3³ = 27 small cubes.

Answer

9

Answer

18

Answer

36

Question 4

Project Tiger was launched in India:‌​‍

Accepted Answer

1973 — 9 initial reserves; now 53+. ‌​‍India has ~75% of world tiger population. Project Elephant 1992. ‌​‍Gir (Asiatic lion).

Answer

1947

Answer

1947

Answer

2000

Question 5

Galwan Valley clash (India-China) happened in:‌​‍

Accepted Answer

June 2020 — Bloody hand-to-hand clash 15 June 2020 in Galwan Valley, Ladakh. ‌​‍20 Indian + 4+ Chinese soldiers killed. First combat deaths on LAC in 45 years.

Answer

2024

Answer

2022

Answer

2017

Question 6

First fully literate district in India:‌​‍

Accepted Answer

Ernakulam — Ernakulam was declared first fully literate district in 1990.‌​‍

Answer

Kottayam

Answer

Thiruvananthapuram

Answer

Palakkad

Question 7

Adsorption on activated charcoal is:

Accepted Answer

Physisorption (van der Waals), reversible, low heat — ΔH ~20-40 kJ/mol. Multilayer. Chemisorption: chemical bond, high ΔH (>80), monolayer, specific.

Answer

Chemisorption

Answer

Neither

Answer

Electrolysis

Question 8

'i.e.' means:

Accepted Answer

That is (id est) — i.e. (Latin id est) = that is; e.g. (exempli gratia) = for example.

Answer

In example

Answer

Including

Answer

For example

Question 9

A batch of Senna leaves is found to contain significant amounts of Dog Senna (Cassia obovata) mixed with the genuine drug. This type of adulteration, where a substandard but morphologically similar material is intentionally added, is known as:

Accepted Answer

A. Sophistication — Sophistication refers to the intentional addition of inferior, substandard, or spurious material to an authentic drug to increase its bulk or potency. Admixture is accidental mixing, while substitution involves replacing the entire drug with another, and deterioration is a loss of quality over time.

Answer

B. Admixture

Answer

C. Substitution

Answer

D. Deterioration

Question 10

The thermodynamic process in which no heat enters or leaves the system is called:‌​‍

Accepted Answer

Adiabatic — Adiabatic process: Q = 0.‌​‍

Answer

Isothermal

Answer

Isobaric

Answer

Isochoric

VFA Mixed Practice Test #133