HSA Mixed Practice Test #232

Question 1

The 2004 Indian Ocean tsunami was triggered by an earthquake off:‌​‍

Accepted Answer

Indonesia (Sumatra) — The 26 December 2004 tsunami was triggered by a massive undersea earthquake off Sumatra, Indonesia (magnitude 9.1).‌​‍

Answer

Japan

Answer

Philippines

Answer

India

Question 2

In Bohr's model of the atom, electrons revolve in:‌​‍

Accepted Answer

Fixed circular orbits with quantised energy — Bohr (1913) postulated quantised, stable circular orbits to explain hydrogen's spectrum.‌​‍

Answer

Elliptical orbits only

Answer

Cloud-like regions

Answer

Random paths

Question 3

The Malabar Rebellion took place in:‌​‍

Accepted Answer

1921 — The Malabar Rebellion (Mappila Rebellion) took place in 1921.‌​‍

Answer

1919

Answer

1920

Answer

1922

Question 4

Endoplasmic reticulum types:‌​‍

Accepted Answer

Rough (ribosomes, protein synthesis) and Smooth (lipid synthesis, detoxification) — Continuous with nuclear envelope. SER abundant in liver (detoxification).‌​‍

Answer

Only smooth

Answer

None

Answer

Only rough

Question 5

The Swaraj Party was formed in 1923 by:‌​‍

Accepted Answer

C.R. Das and Motilal Jawaharlal Nehru — C.R. ‌​‍Das and Motilal Jawaharlal Nehru formed the Swaraj Party to contest legislative elections within Congress.

Answer

Gokhale and Pherozeshah Mehta

Answer

Tilak and Gandhi

Answer

Subhas Bose and Jawaharlal Nehru

Question 6

Kerala's first hydroelectric project was at:‌​‍

Accepted Answer

Pallivasal — Pallivasal Hydroelectric Project in Idukki district was Kerala's first major hydroelectric project, commissioned in 1940.‌​‍

Answer

Idukki

Answer

Malampuzha

Answer

Sabarigiri

Question 7

Which was the first linguistic state in independent India?‌​‍

Accepted Answer

Andhra Pradesh — Andhra State (1953) — first linguistic state in India.‌​‍

Answer

None

Answer

Kerala

Answer

Tamil Nadu

Question 8

1 cubic metre equals:‌​‍

Accepted Answer

10⁶ cm³ — 1 m³ = (100 cm)³ = 1,000,000 cm³.‌​‍

Answer

10⁹ cm³

Answer

1000 cm³

Answer

100 cm³

Question 9

Genetically Modified (GM) crops engineered for herbicide resistance, such as those resistant to glyphosate, have been widely adopted in agriculture. While offering benefits like simplified weed management, what is the most significant long-term environmental concern associated with their widespread cultivation?

Accepted Answer

B. The potential for the herbicide resistance gene to transfer to wild relatives, creating 'superweeds'. — The most significant long-term environmental concern with widespread cultivation of herbicide-resistant GM crops is the potential for the herbicide resistance gene to transfer to wild relatives or other weeds through cross-pollination. This phenomenon can lead to the development of 'superweeds' that are resistant to common herbicides, making weed control more challenging and potentially increasing reliance on new or stronger chemicals. Option A is a food safety concern, not a primary environmental impact on the ecosystem. Option C is more commonly associated with insect-resistant Bt crops rath

Answer

A. A reduction in the nutritional value of the harvested crops.

Answer

C. Increased incidence of pest outbreaks due to decreased natural predator populations.

Answer

D. Accelerated soil erosion rates due to changes in agricultural practices.

Question 10

Synonym of PROPITIOUS:

Accepted Answer

Favorable — Favorable.

Answer

Unfavorable

Answer

Bad

Answer

Hostile

HSA Mixed Practice Test #232