VFA Mixed Practice Test #522

Question 1

The unit of electric flux is:‌​‍

Accepted Answer

Volt-metre (V·m) — Electric flux ΦE has SI units of N·m²/C = V·m.‌​‍

Answer

Tesla

Answer

Farad

Answer

Weber

Question 2

High-Density Polyethylene (HDPE) is extensively utilized in industrial chemistry for the production of rigid articles such as fuel tanks, milk jugs, and detergent bottles. Which of the following intrinsic properties is the primary reason for HDPE's suitability for these applications, distinguishing it from Low-Density Polyethylene (LDPE)?

Accepted Answer

B. Its high degree of crystallinity, resulting in greater stiffness, tensile strength, and chemical resistance. — The primary reason for HDPE's suitability for rigid containers is its high degree of crystallinity. Unlike LDPE, HDPE has minimal branching, allowing its polymer chains to pack closely together, leading to stronger intermolecular forces, which results in greater stiffness, higher tensile strength, and improved chemical resistance. Option A is incorrect as HDPE is typically opaque or translucent. Option C describes properties more characteristic of LDPE, not HDPE. Option D is incorrect because HDPE has a higher density than LDPE, and while lightweight, the key property for rigidity is its cryst

Answer

A. Its superior transparency and optical clarity, enhancing product visibility.

Answer

C. Its excellent flexibility and elasticity, making it ideal for squeeze bottles and films.

Answer

D. Its significantly lower density and buoyancy, facilitating lightweight product design.

Question 3

Kurinji Mala is the highest peak in:

Accepted Answer

Idukki — Anamudi (2,695m) in Idukki is Kerala's highest peak.

Answer

Wayanad

Answer

Palakkad

Answer

Pathanamthitta

Question 4

Mpox WHO emergency:‌​‍

Accepted Answer

2022 and 2024 — Multiple PHEIC declarations.‌​‍

Answer

Only 2022

Answer

Only 2024

Answer

Never

Question 5

Paradesi Synagogue in Cochin built:‌​‍

Accepted Answer

1568 — 1568 — oldest active synagogue in the Commonwealth.‌​‍

Answer

1500

Answer

1600

Answer

1650

Question 6

Gondwana rocks in India:

Accepted Answer

Coal beds — Main coal reserves.

Answer

Granite

Answer

Basalt

Answer

Sandstone only

Question 7

What is the focus of the KAVAL PLUS scheme?‌​‍

Accepted Answer

Provide protective services to children at risk — Kerala's KAVAL PLUS scheme provides protective services to children at risk of abuse or neglect.‌​‍

Answer

Improve children's educational outcomes

Answer

Provide financial aid to underprivileged children

Answer

Reduce school dropout rates among children

Question 8

Oestrogen from:‌​‍

Accepted Answer

Ovary — Female sex hormone.‌​‍

Answer

Pituitary

Answer

Thyroid

Answer

Testes

Question 9

Thommankuthu Falls:‌​‍

Accepted Answer

Idukki — Seven-step falls Idukki.‌​‍

Answer

Pathanamthitta

Answer

Kottayam

Answer

Ernakulam

Question 10

The 1928 Payyannur Congress Conference that demanded a separate Kerala state was chaired by:‌​‍

Accepted Answer

Jawaharlal Nehru — Jawaharlal Nehru presided over the 1928 Payyannur Congress which demanded linguistic statehood for Kerala.‌​‍

Answer

K. Kelappan

Answer

Mahatma Gandhi

Answer

Subhas Chandra Bose

VFA Mixed Practice Test #522