HSA Mixed Practice Test #776

Question 1

Dengue is transmitted by:‌​‍

Accepted Answer

Aedes mosquito — Dengue is transmitted by Aedes aegypti mosquito. ‌​‍It bites mainly during daytime.

Answer

Anopheles mosquito

Answer

Housefly

Answer

Rat

Question 2

'Close the window' — change into Passive Voice:‌​‍

Accepted Answer

Let the window be closed. — Imperative passive → 'Let + object + be + past participle'.‌​‍

Answer

Let the window shall be closed.

Answer

Let the window should be closed.

Answer

Let the window has been closed.

Question 3

Charles Darwin's theory of evolution is based on:‌​‍

Accepted Answer

Natural selection — Darwin's 'On the Origin of Species' (1859): species evolve via natural selection of heritable traits.‌​‍

Answer

Lamarckism

Answer

Spontaneous generation

Answer

Catastrophism

Question 4

Types of letters:

Accepted Answer

Formal, Informal — Formal: business, application, complaint. Informal: friend, family. Different tone, vocabulary, structure.

Answer

Only one

Answer

Only formal

Answer

Only email

Question 5

Lok Sabha term:‌​‍

Accepted Answer

5 years — 5 years (can be dissolved earlier).‌​‍

Answer

4 years

Answer

6 years

Answer

Permanent

Question 6

'Sangam literature', the classical Tamil corpus, belongs to which period?‌​‍

Accepted Answer

3rd century BCE to 3rd century CE — Sangam literature was composed roughly 300 BCE–300 CE in Tamil Nadu/Kerala.‌​‍

Answer

14th–16th century CE

Answer

9th–12th century CE

Answer

6th–8th century CE

Question 7

Valley of Flowers National Park is in which state?‌​‍

Accepted Answer

Uttarakhand — Valley of Flowers in Uttarakhand is a UNESCO World Heritage Site known for its endemic alpine flowers.‌​‍

Answer

Jammu & Kashmir

Answer

Himachal Pradesh

Answer

Sikkim

Question 8

Which of the following is a correct statement about the role of the kidney in maintaining acid-base balance?

Accepted Answer

A. The kidney reabsorbs bicarbonate ions to neutralize acids — The kidney reabsorbs bicarbonate ions (HCO3-) to buffer acids in the blood, maintaining pH balance. It does not excrete bicarbonate, produce hydrochloric acid, or filter all acids, as some acids are metabolized or excreted in other forms.

Answer

B. The kidney excretes bicarbonate ions to increase blood pH

Answer

C. The kidney produces hydrochloric acid to balance pH

Answer

D. The kidney filters out all acids from the blood

Question 9

Infopark Kochi:‌​‍

Accepted Answer

Since 2004 — Infopark Kochi from 2004.‌​‍

Answer

2020

Answer

1990

Answer

2010

Question 10

Dedicated Freight Corridors in India connect:‌​‍

Accepted Answer

Delhi-Mumbai and Ludhiana-Dankuni — Two DFCs: Western (Delhi-Mumbai, JNPT) and Eastern (Ludhiana-Dankuni) for faster freight movement.‌​‍

Answer

Mumbai-Chennai and Delhi-Kolkata

Answer

Delhi-Bengaluru and Mumbai-Kolkata

Answer

Kolkata-Mumbai and Delhi-Chennai

HSA Mixed Practice Test #776