DCOA Mixed Practice Test #804

Question 1

Speed of sound in air at 20°C is approximately:

Accepted Answer

343 m/s — v = √(γP/ρ) ≈ 331 + 0.6T (°C). In water ~1482 m/s; in steel ~5960 m/s.

Answer

330 m/s

Answer

450 m/s

Answer

1500 m/s

Question 2

Changampuzha Krishna Pillai:‌​‍

Accepted Answer

Ramanan — Famous for Ramanan (1936) elegy.‌​‍

Answer

Only Ramanan

Answer

Political

Answer

Religious

Question 3

Allotropes of carbon include:‌​‍

Accepted Answer

Diamond, graphite, fullerene — Diamond (sp³ 3D), graphite (sp² 2D), fullerene (C₆₀), graphene, nanotubes — all allotropes of C.‌​‍

Answer

Ozone, oxygen

Answer

Red P, white P

Answer

Rhombic S, monoclinic S

Question 4

The last temple consecrated by Sree Narayana Guru was at:

Accepted Answer

Kalavancode — Kalavancode temple (1927) was his last consecration; he installed only a mirror as the deity.

Answer

Aruvippuram

Answer

Varkala

Answer

Sivagiri

Question 5

The main component of natural gas is:

Accepted Answer

Methane — Natural gas is ~80–90% methane (CH₄).

Answer

Ethane

Answer

Propane

Answer

Butane

Question 6

Which part of the plant is used in the preparation of 'Ipecac' syrup, a drug used to induce vomiting?

Accepted Answer

A. Root — Ipecac syrup is prepared from the dried root of Cephaelis ipecacuanha, which contains emetine, an alkaloid used as an emetic. The bark, leaf, and seed do not contain the active principles in sufficient quantity.

Answer

B. Bark

Answer

C. Leaf

Answer

D. Seed

Question 7

A woman experiences indifference towards her family, a sensation as if her internal organs are bearing down and will escape through the vagina, and is ameliorated by vigorous exercise. She also has an aversion to sympathy and desires sour things. Which remedy is indicated?

Accepted Answer

C. Sepia officinalis — Sepia officinalis is known for its keynotes of indifference to loved ones, bearing-down sensation in the pelvic organs, amelioration from vigorous exercise, aversion to sympathy, and a desire for sour foods. Lilium tigrinum also has bearing-down sensations but is often accompanied by religious mania and hurriedness. Platina is characterized by haughtiness and numbness. Murex purpurea is another uterine remedy but without the strong mental picture of Sepia.

Answer

A. Lilium tigrinum

Answer

B. Platina

Answer

D. Murex purpurea

Question 8

The 'Sarva Shiksha Abhiyan' (SSA) in Kerala is implemented under which of the following government initiatives?

Accepted Answer

A. Right to Education (RTE) Act — Sarva Shiksha Abhiyan (SSA) is a flagship programme of the Government of India to implement the Right to Education (RTE) Act, ensuring free and compulsory education for children aged 6-14 years. Mid-day meals and RUSA are separate schemes, while the National Literacy Mission focuses on adult education.

Answer

B. National Programme of Mid-Day Meals in Schools

Answer

C. Rashtriya Uchchatar Shiksha Abhiyan (RUSA)

Answer

D. National Literacy Mission Authority

Question 9

The Chera dynasty's major port on the Malabar coast during Sangam age was:

Accepted Answer

Muziris (Muchiri, near Kodungallur) — Muziris on the Periyar river traded with Rome (pepper, spices); silted up by 14th century.

Answer

Karaikkal

Answer

Tamralipti

Answer

Sopara

Question 10

Kerala model of development emphasizes:‌​‍

Accepted Answer

Social indicators (health, education, gender equality) — Kerala model — high social development (literacy, health, HDI) despite moderate income.‌​‍

Answer

Heavy industry

Answer

Agriculture

Answer

IT exports

DCOA Mixed Practice Test #804