Plus 2 Lecturer Mixed Practice Test #128

Question 1

The Temple Entry Proclamation of 1936 that opened all state-controlled temples to Hindus was issued by:

Accepted Answer

Sri Chithira Thirunal (Travancore) — On 12 November 1936, Sri Chithira Thirunal Balarama Varma proclaimed Temple Entry in Travancore — a historic reform.

Answer

Maharaja of Kochi

Answer

Zamorin of Calicut

Answer

Government of Madras

Question 2

The past participle of 'eat' is:

Accepted Answer

eaten — Eat — ate — eaten.

Answer

ate

Answer

eating

Answer

eats

Question 3

The word 'impossible' has which prefix?‌​‍

Accepted Answer

im- — 'im-' is a negating prefix (form of 'in-' before p, b, m). ‌​‍Others: unlikely, illegal, irregular.

Answer

-sible

Answer

ible-

Answer

pos-

Question 4

A worker pushes a 50 kg box across a rough horizontal floor with a constant applied force of 200 N. If the coefficient of kinetic friction between the box and the floor is 0.2, and the box moves 10 meters, what is the net work done on the box? (Take acceleration due to gravity g = 10 m/s²)

Accepted Answer

A. 1000 J — The net work done on an object is the sum of work done by all forces acting on it. The applied force does W_applied = F_applied × d = 200 N × 10 m = 2000 J. The normal force is N = mg = 50 kg × 10 m/s² = 500 N. The kinetic frictional force is F_friction = μ_k × N = 0.2 × 500 N = 100 N. The work done by friction is W_friction = -F_friction × d = -100 N × 10 m = -1000 J (negative as it opposes motion). Therefore, the net work done is W_net = W_applied + W_friction = 2000 J - 1000 J = 1000 J. This net work done also equals the change in kinetic energy of the box.

Answer

B. 2000 J

Answer

C. 500 J

Answer

D. 0 J

Question 5

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 6

Before initiating a research study involving human subjects, what is the primary purpose of obtaining informed consent from participants?

Accepted Answer

C. To ensure participants understand the study's purpose, risks, benefits, and their right to withdraw. — Informed consent is a fundamental ethical principle in research, ensuring that participants voluntarily agree to participate after fully understanding the study's nature, potential risks, benefits, and their rights, including the right to withdraw at any time without penalty. It upholds autonomy and protects participant welfare, not just researcher liability or data publication.

Answer

A. To ensure participants will complete the entire study duration.

Answer

B. To protect the researcher from legal liability.

Answer

D. To obtain a written agreement for publishing their personal data.

Question 7

Gandhi's autobiography:‌​‍

Accepted Answer

My Experiments with Truth — The Story of My Experiments with Truth.‌​‍

Answer

Discovery

Answer

Key to Health

Answer

Hind Swaraj

Question 8

The Neelakurinji flowers bloom once every:‌​‍

Accepted Answer

12 years — Neelakurinji (Strobilanthes kunthiana) blooms once every 12 years in the hills of Munnar (Idukki).‌​‍

Answer

5 years

Answer

8 years

Answer

15 years

Question 9

Kerala Kalamandalam located at:

Accepted Answer

Cheruthuruthy — Cheruthuruthy, Thrissur district.

Answer

Thrissur

Answer

Palakkad

Answer

Malappuram

Question 10

Synonym of 'scrutinise':‌​‍

Accepted Answer

Examine closely — Scrutinise = inspect carefully, examine thoroughly.‌​‍

Answer

Glance

Answer

Ignore

Answer

Praise

Plus 2 Lecturer Mixed Practice Test #128