DCOA Mixed Practice Test #269

Question 1

Tholpavakoothu (shadow puppetry) is performed in temples of which district mainly?

Accepted Answer

Palakkad — Tholpavakoothu is performed in Bhadrakali temples of Palakkad district, narrating the Ramayana.

Answer

Thrissur

Answer

Malappuram

Answer

Kozhikode

Question 2

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 3

Oxygenated blood from lungs enters:

Accepted Answer

Left atrium — Pulmonary veins → left atrium.

Answer

Right atrium

Answer

Right ventricle

Answer

Left ventricle

Question 4

To foster intrinsic motivation in students for a long-term project, which of the following strategies should a teacher prioritize?

Accepted Answer

C. Providing opportunities for students to choose their project topic and presentation format. — Providing opportunities for choice and autonomy (option C) is a key factor in fostering intrinsic motivation. When students have a sense of control over their learning, they are more likely to be engaged and invested in the task. Options A, B, and D primarily rely on extrinsic motivators or create pressure, which can sometimes undermine intrinsic interest, especially in the long run.

Answer

A. Offering significant cash rewards for project completion.

Answer

B. Emphasizing strict deadlines and grading criteria.

Answer

D. Encouraging intense competition among student groups.

Question 5

Swachh Bharat launched on:‌​‍

Accepted Answer

2 Oct 2014 — 2 October 2014 (Gandhi Jayanti).‌​‍

Answer

15 Aug 2014

Answer

26 Jan 2015

Answer

1 Apr 2015

Question 6

Which of the following bacterial structures primarily contributes to its ability to adhere to host cells and resist phagocytosis, thereby enhancing its pathogenicity?

Accepted Answer

B. Pili (Fimbriae) — Pili, also known as fimbriae, are hair-like appendages on the surface of many bacteria that are crucial for adhesion to host cells and other surfaces, forming biofilms. This adherence is a key virulence factor, preventing the bacteria from being washed away and sometimes helping them resist phagocytosis. Flagella are for motility, the cell wall provides structural integrity, and ribosomes are involved in protein synthesis.

Answer

A. Flagella

Answer

C. Cell wall

Answer

D. Ribosomes

Question 7

Newton's First Law is also called:‌​‍

Accepted Answer

Law of inertia — First Law = Law of Inertia — body at rest stays at rest.‌​‍

Answer

Law of action-reaction

Answer

Law of acceleration

Answer

Law of gravity

Question 8

Aranmula Kannadi (metal mirror) is a GI-tagged product from which district?‌​‍

Accepted Answer

Pathanamthitta — Aranmula Kannadi, made of a special metal alloy, is a GI-tagged heritage craft from Aranmula in Pathanamthitta.‌​‍

Answer

Kottayam

Answer

Ernakulam

Answer

Thrissur

Question 9

Deepest lake world:

Accepted Answer

Baikal — Baikal (1,642m).

Answer

Tanganyika

Answer

Caspian

Answer

Superior

Question 10

Edakkal Caves with ancient petroglyphs are in which district?‌​‍

Accepted Answer

Wayanad — Edakkal Caves in Wayanad contain Stone Age petroglyphs dating back to 6000 BCE.‌​‍

Answer

Palakkad

Answer

Kannur

Answer

Idukki

DCOA Mixed Practice Test #269