KAS Prelims Mixed Practice Test #154

Question 1

Transcription:‌​‍

Accepted Answer

DNA to RNA — DNA → mRNA.‌​‍

Answer

Protein to RNA

Answer

RNA to protein

Answer

DNA to DNA

Question 2

The trip was ___ exciting that we did not feel any sense of boredom.‌​‍

Accepted Answer

so — 'So … that' pattern.‌​‍

Answer

too

Answer

much

Answer

very

Question 3

EEG records:‌​‍

Accepted Answer

Brain electrical activity — Electroencephalogram — brain activity.‌​‍

Answer

Ear

Answer

Heart

Answer

Eye

Question 4

Which plateau in India is known as the 'mineral storehouse'?‌​‍

Accepted Answer

Chota Nagpur Plateau — The Chota Nagpur Plateau is called the mineral storehouse of India due to its rich deposits of coal, iron, mica, and bauxite.‌​‍

Answer

Malwa Plateau

Answer

Meghalaya Plateau

Answer

Deccan Plateau

Question 5

Akshaya — Kerala project:‌​‍

Accepted Answer

e-literacy — e-literacy project.‌​‍

Answer

Transport

Answer

Healthcare

Answer

Fish

Question 6

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 7

The Constitution guarantees protection of the rights of the minorities through which articles?

Accepted Answer

29 and 30 — Articles 29 and 30 guarantee cultural and educational rights to minorities.

Answer

350 and 351

Answer

28 and 29

Answer

15 and 16

Question 8

The Chief Executive of the Reserve Bank of India holds the designation of:‌​‍

Accepted Answer

Governor — The head of RBI is called the Governor.‌​‍

Answer

General Manager

Answer

Chief Financial Officer

Answer

Managing Director

Question 9

Dark spot at centre of Newton's rings (reflected light) is due to:

Accepted Answer

Destructive interference (π phase on denser medium reflection) — Not in XI SCERT. At point of contact, path difference ≈ 0 but π phase change on glass reflection causes destructive interference.

Answer

Constructive

Answer

Dispersion

Answer

Diffraction

Question 10

Kerala's unique panchayat reform:‌​‍

Accepted Answer

People's Planning Campaign — People's Planning Campaign 1996.‌​‍

Answer

Digital

Answer

Industrial

Answer

Green

KAS Prelims Mixed Practice Test #154