LGS Mixed Practice Test #726

Question 1

Nationalism as an ideology emerged primarily in:‌​‍

Accepted Answer

French Revolution (late 18th century) — Modern nationalism emerged with French Revolution (1789) — nation as sovereign people, not king's subjects.‌​‍

Answer

Ancient Greece

Answer

Renaissance

Answer

Industrial Revolution

Question 2

Cochin International Airport (CIAL):‌​‍

Accepted Answer

First public-private airport — First airport built under PPP 1999.‌​‍

Answer

Private only

Answer

Govt only

Answer

Military

Question 3

In a galvanic cell, the anode is the:‌​‍

Accepted Answer

Negative electrode (oxidation) — In galvanic cells: anode = negative = oxidation; cathode = positive = reduction.‌​‍

Answer

Neutral plate

Answer

Salt bridge

Answer

Positive electrode (reduction)

Question 4

Mr. Rajesh, a high school English teacher, notices a persistent issue where students struggle to write coherent essays despite receiving instruction on essay structure. If he decides to use action research to address this, what would be the most appropriate *initial* step?

Accepted Answer

B. Formulate a clear research question and collect preliminary data to understand the root causes of the struggle. — The initial step in action research is to clearly define the problem, often by formulating a specific research question, and then to gather preliminary data to understand its specific manifestations and potential causes within the classroom context. Implementing solutions immediately (A) without proper planning or data collection is not an action research approach. Options C and D do not align with the practitioner-led, context-specific nature of action research.

Answer

A. Immediately implement a new essay writing software for all students.

Answer

C. Request a transfer to a different grade level to avoid the problem.

Answer

D. Consult a university professor to conduct a large-scale study on essay writing difficulties.

Question 5

The 'Kerala State Education Policy 2016' emphasizes which of the following as a primary goal?

Accepted Answer

A. Universalization of early childhood education — The Kerala State Education Policy 2016 prioritizes universalization of early childhood education to ensure foundational learning. Option B is a component but not the primary goal. Options C and D are not central focuses of the policy.

Answer

B. Complete digitization of school curriculum

Answer

C. Reduction of school working hours

Answer

D. Mandatory vocational training from Class IX

Question 6

Mitochondria are called 'powerhouse' because:‌​‍

Accepted Answer

Generate ATP via oxidative phosphorylation — Double membrane. ‌​‍Inner folded into cristae. Own DNA, ribosomes (endosymbiont origin).

Answer

Produce oxygen

Answer

Synthesise proteins

Answer

Store food

Question 7

Which class of diuretics primarily acts on the ascending limb of the loop of Henle to inhibit sodium and chloride reabsorption, leading to potent diuresis?

Accepted Answer

C. Loop diuretics — Loop diuretics (e.g., furosemide) are highly effective because they block the Na+/K+/2Cl- cotransporter in the thick ascending limb of the loop of Henle, where a significant portion of sodium reabsorption occurs. Thiazide diuretics act on the distal convoluted tubule, potassium-sparing diuretics act on the collecting duct, and osmotic diuretics act throughout the nephron.

Answer

A. Thiazide diuretics

Answer

B. Potassium-sparing diuretics

Answer

D. Osmotic diuretics

Question 8

Why do we feel cool when we sweat?‌​‍

Accepted Answer

Evaporation causes cooling — Evaporation is a cooling process — sweat absorbs body heat when it evaporates, cooling the skin.‌​‍

Answer

Sweat is cold

Answer

Wind blows

Answer

Blood pressure drops

Question 9

In a coastal district of Kerala, many traditional fishing communities are struggling with declining fish stocks and the increasing mechanization of fishing operations by larger companies. This has led to a situation where a substantial portion of the traditional fishermen are unable to find work using their traditional skills. This scenario primarily illustrates which type of unemployment?

Accepted Answer

C. Structural unemployment — Structural unemployment occurs when there is a mismatch between the skills of the unemployed and the skills required for available jobs, often due to technological advancements, shifts in industry structure, or resource depletion. The scenario describes a loss of jobs for traditional fishermen due to mechanization and declining resources, which fundamentally alters the demand for their specific skills. Frictional unemployment is temporary, cyclical is due to economic downturns, and seasonal is tied to specific seasons.

Answer

A. Frictional unemployment

Answer

B. Cyclical unemployment

Answer

D. Seasonal unemployment

Question 10

Wien's displacement law λ_max T = b (constant). Constant b ≈:‌​‍

Accepted Answer

2.9 × 10⁻³ m·K — Wien's constant 2.898 × 10⁻³ m·K. ‌​‍Used to find Sun's surface temperature (~5800 K).

Answer

6.63 × 10⁻³⁴

Answer

5.67 × 10⁻⁸

Answer

1.38 × 10⁻²³

LGS Mixed Practice Test #726