HSA Mixed Practice Test #628

Question 1

Considering the distinct physiographic divisions of Kerala, which of the following environmental challenges is most predominantly associated with the 'Lowland' region?

Accepted Answer

C. Saline water intrusion, coastal erosion, and vulnerability to sea-level rise. — The lowland region of Kerala, being a narrow coastal strip, is particularly vulnerable to saline water intrusion into its aquifers and estuaries, coastal erosion due to wave action, and the impacts of global sea-level rise. These challenges directly stem from its low elevation and proximity to the Arabian Sea. Options A, B (deforestation), and D are more characteristic environmental concerns of the highland or midland regions.

Answer

A. Soil erosion and landslides due to steep slopes and heavy rainfall.

Answer

B. Water scarcity during dry seasons and deforestation due to extensive logging.

Answer

D. Human-wildlife conflict and the degradation of forest ecosystems.

Question 2

Third Anglo-Maratha War:‌​‍

Accepted Answer

1817-18 — 1817-18 — ended Maratha power.‌​‍

Answer

1845

Answer

1803

Answer

1775

Question 3

Phrasal verb 'give up' means:

Accepted Answer

Surrender or stop doing — Verb + preposition/particle with idiomatic meaning. 'Put off' = postpone. 'Look after' = take care.

Answer

Receive

Answer

Begin

Answer

Continue

Question 4

Active: 'The workers are building a bridge.' Passive:‌​‍

Accepted Answer

A bridge is being built by the workers — Present continuous passive.‌​‍

Answer

A bridge was built

Answer

A bridge has been built

Answer

A bridge is built

Question 5

The Mar Thoma Church in Kerala traces origin to:‌​‍

Accepted Answer

St. Thomas (apostle) tradition — Tradition says St. ‌​‍Thomas arrived at Kodungallur in 52 CE; Mar Thoma Church reformed from Syrian Orthodox in 19th century.

Answer

Portuguese missionaries

Answer

British missionaries

Answer

Dutch missionaries

Question 6

Idukki formed:

Accepted Answer

1972 — 26 January 1972.

Answer

1956

Answer

1980

Answer

1990

Question 7

Activation energy Ea can be determined by:‌​‍

Accepted Answer

Arrhenius plot (ln k vs 1/T) — slope = -Ea/R — Measure k at multiple T. ‌​‍Slope of ln k vs 1/T gives -Ea/R. Intercept gives ln A.

Answer

Only at one T

Answer

Graphing concentration

Answer

Spectroscopy only

Question 8

Drake Passage between:

Accepted Answer

S. America-Antarctica — Tierra del Fuego - Antarctic Peninsula.

Answer

Africa-Antarctica

Answer

Australia-Antarctica

Answer

Europe-Africa

Question 9

HIV infects:

Accepted Answer

Helper T (CD4+) lymphocytes — Retrovirus (RNA). Causes AIDS. Reverse transcriptase makes DNA from RNA. ART: combination of drugs.

Answer

RBC

Answer

Nerve

Answer

Muscle

Question 10

Collective responsibility of Council of Ministers to Lok Sabha is based on:‌​‍

Accepted Answer

Article 75 (3) — 'The Council of Ministers shall be collectively responsible to the House of the People' — cornerstone of parliamentary democracy.‌​‍

Answer

Article 85

Answer

Article 74

Answer

Article 78

HSA Mixed Practice Test #628