DCOA Mixed Practice Test #343

Question 1

Hess's law states:‌​‍

Accepted Answer

ΔH of reaction depends only on initial and final states — Path-independence — consequence of H being state function. ‌​‍Used to compute ΔH by summing known steps.

Answer

Entropy always increases

Answer

Energy of activation

Answer

Rate is proportional to concentration

Question 2

Pulluvan Paattu:

Accepted Answer

Serpent worship songs — Serpent songs.

Answer

Royal

Answer

Religious

Answer

Folk

Question 3

Symbol of Gold:‌​‍

Accepted Answer

Au — Au (Latin: Aurum). Ag = Silver.‌​‍

Answer

Go

Answer

Gd

Answer

Ag

Question 4

Who is the present CAG (April 2016)?‌​‍

Accepted Answer

Shashi Kant Sharma — Shashi Kant Sharma was CAG from May 2013 to September 2017.‌​‍

Answer

Agarwal

Answer

T.E. Khanna

Answer

Vinod Rai

Question 5

Sasthamkotta Lake is in:‌​‍

Accepted Answer

Kollam — Sasthamkotta — largest freshwater lake in Kerala, Kollam district.‌​‍

Answer

Alappuzha

Answer

Kottayam

Answer

Pathanamthitta

Question 6

The thyroid gland's hormone, thyroxin, contains:

Accepted Answer

Iodine — Thyroxin (T4) is iodinated tyrosine; iodine deficiency causes goitre/hypothyroidism.

Answer

Iron

Answer

Zinc

Answer

Copper

Question 7

Kerala's climate is significantly shaped by the monsoon systems. Considering the Southwest Monsoon, which of the following geographical factors is primarily responsible for the exceptionally high rainfall received along the western slopes of the Western Ghats in Kerala?

Accepted Answer

B. The orographic effect caused by the Western Ghats obstructing moisture-laden winds. — The Western Ghats run perpendicular to the Southwest Monsoon winds. This geographical feature forces the moisture-laden winds to rise, cool, condense, and precipitate heavily on the windward western slopes, leading to significant orographic rainfall. Options A, C, and D describe other atmospheric or geographical phenomena that are either incorrect in context, less primary, or influence different aspects of the monsoon.

Answer

A. The parallel alignment of the Western Ghats with the monsoon winds, enhancing their flow.

Answer

C. The influence of the Tibetan high-pressure system creating strong onshore winds.

Answer

D. Frequent cyclonic depressions forming over the Arabian Sea and moving towards the coast.

Question 8

A curriculum designer ensures that topics like 'Photosynthesis' are introduced in elementary school with basic concepts, revisited in middle school with more detail on chemical reactions, and then explored in high school with advanced biochemical pathways. This approach exemplifies which of Bruner's key ideas?

Accepted Answer

C. Spiral curriculum — Jerome Bruner's concept of the spiral curriculum suggests that complex subjects should be taught in a way that the basic ideas are presented first, and then revisited repeatedly at increasing levels of complexity as the student progresses. This allows for continuous learning and deeper understanding over time.

Answer

A. Enactive representation

Answer

B. Readiness for learning

Answer

D. Iconic representation

Question 9

Jan Aushadhi stores:‌​‍

Accepted Answer

14000+ (2024) — Generic medicine stores — massive expansion.‌​‍

Answer

5000

Answer

500

Answer

2000

Question 10

When a patient experiences pain from an injury, the nerve impulses travel along sensory neurons to the central nervous system. Which part of the brain is primarily responsible for the conscious perception and interpretation of this pain?

Accepted Answer

C. Thalamus and Cerebral Cortex — Sensory information, including pain signals, is first relayed to the thalamus, which acts as a major relay station. From the thalamus, these signals are then projected to various areas of the cerebral cortex, particularly the somatosensory cortex, where the pain is consciously perceived, localized, and interpreted.

Answer

A. Cerebellum

Answer

B. Brainstem

Answer

D. Hypothalamus

DCOA Mixed Practice Test #343