LGS Mixed Practice Test #473

Question 1

Krebs cycle in:

Accepted Answer

Mitochondrial matrix — Matrix of mitochondria.

Answer

Cytoplasm

Answer

Nucleus

Answer

Ribosome

Question 2

Kettu Kazcha (Kuthirakettu), a temple festivity in Kollam and Alappuzha districts, is related to:

Accepted Answer

Buddhism — Kettu Kazcha's towering chariots evolved from ancient Buddhist processional traditions in Kerala.

Answer

Jainism

Answer

Both Buddhism and Jainism

Answer

Hinduism

Question 3

Varkala:‌​‍

Accepted Answer

Beach-cliff, TVM — Coastal cliff beach.‌​‍

Answer

Forest

Answer

Hill

Answer

Backwater

Question 4

Kerala's first Lok Sabha election:‌​‍

Accepted Answer

1952 — 1952 — before Kerala formation; earlier Travancore-Cochin.‌​‍

Answer

1967

Answer

1957

Answer

1962

Question 5

Which vitamin is essential for blood clotting?‌​‍

Accepted Answer

Vitamin K — Vitamin K (Phylloquinone) is essential for blood clotting. ‌​‍Its deficiency leads to delayed clotting and excessive bleeding. Found in green leafy vegetables.

Answer

Vitamin D

Answer

Vitamin C

Answer

Vitamin A

Question 6

According to the Atkinson–Shiffrin model, the three distinct memory stores are:‌​‍

Accepted Answer

Sensory, Short-term, Long-term memory — Atkinson & Shiffrin (1968) proposed Sensory, Short-term and Long-term memory stores.‌​‍

Answer

Fluid, Short-term, Long-term memory

Answer

Working, Short-term, Long-term memory

Answer

Fluid memory, Crystallized memory

Question 7

Data that describes the characteristics of a geographic feature in GIS:

Accepted Answer

Non-Spatial Data — Non-spatial (attribute) data describes features; raster/vector are spatial data formats.

Answer

Raster Data

Answer

Spatial Data

Answer

Vector Data

Question 8

High-Density Polyethylene (HDPE) is extensively utilized in industrial chemistry for the production of rigid articles such as fuel tanks, milk jugs, and detergent bottles. Which of the following intrinsic properties is the primary reason for HDPE's suitability for these applications, distinguishing it from Low-Density Polyethylene (LDPE)?

Accepted Answer

B. Its high degree of crystallinity, resulting in greater stiffness, tensile strength, and chemical resistance. — The primary reason for HDPE's suitability for rigid containers is its high degree of crystallinity. Unlike LDPE, HDPE has minimal branching, allowing its polymer chains to pack closely together, leading to stronger intermolecular forces, which results in greater stiffness, higher tensile strength, and improved chemical resistance. Option A is incorrect as HDPE is typically opaque or translucent. Option C describes properties more characteristic of LDPE, not HDPE. Option D is incorrect because HDPE has a higher density than LDPE, and while lightweight, the key property for rigidity is its cryst

Answer

A. Its superior transparency and optical clarity, enhancing product visibility.

Answer

C. Its excellent flexibility and elasticity, making it ideal for squeeze bottles and films.

Answer

D. Its significantly lower density and buoyancy, facilitating lightweight product design.

Question 9

The Vembanad Lake, a Ramsar site, is primarily fed by which of the following river systems?

Accepted Answer

B. Pamba and Manimala — The Vembanad Lake receives significant inflow from the Pamba and Manimala rivers, along with other smaller rivers. Periyar and Muvattupuzha flow into the Arabian Sea separately, while Meenachil and Kallada drain into different parts of Kerala.

Answer

A. Periyar and Muvattupuzha

Answer

C. Meenachil and Kallada

Answer

D. Achankoil and Kallada

Question 10

Neurotransmitters are released at the:‌​‍

Accepted Answer

Synapse (synaptic cleft) — Action potential triggers vesicles to release neurotransmitters into the synaptic cleft.‌​‍

Answer

Cell body

Answer

Dendrite tip

Answer

Axon hillock

LGS Mixed Practice Test #473