LGS Mixed Practice Test #70

Question 1

Who said 'Man is born free but he is everywhere in chains'?

Accepted Answer

Rousseau — Jean-Jacques Rousseau in 'The Social Contract' (1762).

Answer

Locke

Answer

Grotius

Answer

Hobbes

Question 2

Beats frequency between two waves of frequencies 256 Hz and 260 Hz is:‌​‍

Accepted Answer

4 Hz — Beat frequency = |f1 - f2| = 4 Hz. Audible if beats <~10 Hz.‌​‍

Answer

2 Hz

Answer

0

Answer

516 Hz

Question 3

Guard cells control the opening and closing of:‌​‍

Accepted Answer

Stomata — Kidney-shaped guard cells regulate stomatal aperture for gas exchange.‌​‍

Answer

Root hairs

Answer

Xylem vessels

Answer

Lenticels

Question 4

Fungi cell wall made of:‌​‍

Accepted Answer

Chitin — Chitin.‌​‍

Answer

Silica

Answer

Cellulose

Answer

Protein

Question 5

Transistor has:‌​‍

Accepted Answer

Three terminals (E, B, C) — Emitter, Base, Collector. NPN and PNP. Used as amplifier and switch.‌​‍

Answer

Only one

Answer

Four terminals

Answer

Two terminals

Question 6

mRNA codon — start codon:‌​‍

Accepted Answer

AUG (Methionine) — Stop codons: UAA, UAG, UGA (amber, ochre, opal). ‌​‍Genetic code is degenerate, non-overlapping, nearly universal.

Answer

UGA

Answer

UAG

Answer

UAA

Question 7

The Joint Commissioners of Malabar who freed all trade except pepper were:

Accepted Answer

Jonathan Duncan and Charles Bodden — Jonathan Duncan and Charles Bodden were the Joint Commissioners appointed by the British after the Third Anglo-Mysore War.

Answer

Only Jonathan Duncan

Answer

Jonathan Duncan and William Giffth

Answer

William Giffth and James Stevens

Question 8

A student is struggling to write an essay independently. Their teacher sits with them, helps them brainstorm ideas, creates an outline together, and then guides them through writing the introduction, gradually reducing direct assistance as the student gains confidence. This interaction primarily illustrates the application of:

Accepted Answer

A. Scaffolding — Scaffolding, a concept often associated with Vygotsky, refers to the temporary support provided by a more knowledgeable other (like the teacher) to help a learner master a task. The teacher's gradual reduction of assistance as the student gains competence is a classic example of scaffolding within the student's Zone of Proximal Development.

Answer

B. Assimilation

Answer

C. Equilibration

Answer

D. Meaningful reception

Question 9

A regional planner is tasked with identifying areas most susceptible to severe flooding during monsoon seasons in Kerala, while also considering regions prone to significant soil erosion and landslides. Which two physiographic regions would likely be prioritized for flood mitigation and landslide prevention measures, respectively?

Accepted Answer

C. Lowland for flooding, Highland for landslides. — The Lowland region, being flat, low-lying, and crisscrossed by numerous rivers and backwaters, is highly vulnerable to severe flooding, especially during heavy monsoons. In contrast, the Highland region, with its steep slopes, high rainfall, and often fragile geological formations, is most susceptible to significant soil erosion and landslides, necessitating targeted prevention measures. Midland and Coastal Plain have varying degrees of these issues but are not the primary zones for the 'most susceptible' criteria as described.

Answer

A. Midland for flooding, Lowland for landslides.

Answer

B. Highland for flooding, Coastal Plain for landslides.

Answer

D. Coastal Plain for flooding, Midland for landslides.

Question 10

The 'Education Bill' by the first EMS Ministry focused on:‌​‍

Accepted Answer

Government control over private aided schools — The Kerala Education Bill 1957 sought state regulation of private aided schools — triggering the Vimochana Samaram.‌​‍

Answer

Free technical education

Answer

Adult literacy

Answer

English as medium of instruction

LGS Mixed Practice Test #70