HSA Mixed Practice Test #248

Question 1

Epsom salt is:‌​‍

Accepted Answer

MgSO₄ — Epsom salt = Magnesium Sulphate (MgSO₄·7H₂O). ‌​‍Used in medicine and as bath salts.

Answer

NaCl

Answer

CaSO₄

Answer

KCl

Question 2

Peristalsis:‌​‍

Accepted Answer

Wave-like muscle contractions in food tube — Moves food through alimentary canal.‌​‍

Answer

Blood flow

Answer

Breathing

Answer

Digestion

Question 3

Vizhinjam port inauguration (commercial):‌​‍

Accepted Answer

2023-24 — Container operations began 2023-24.‌​‍

Answer

2025

Answer

2015

Answer

2020

Question 4

Eye's lens:‌​‍

Accepted Answer

Converging — Biconvex lens.‌​‍

Answer

Diverging

Answer

Plane

Answer

Concave

Question 5

The hormone responsible for milk production in mammals is:‌​‍

Accepted Answer

Prolactin — Prolactin from the anterior pituitary stimulates milk synthesis; oxytocin triggers ejection.‌​‍

Answer

Estrogen

Answer

Oxytocin

Answer

Progesterone

Question 6

'She has been living here (A) since (B) five years (C) now (D).' Error is in:‌​‍

Accepted Answer

B — 'Since' is for point in time (since 2020). ‌​‍'For' is for duration (for five years). Correct: 'for five years'.

Answer

A

Answer

C

Answer

D

Question 7

Seismic waves — P waves are:‌​‍

Accepted Answer

Faster (primary, compressional, through solid & liquid) — S (secondary, shear) don't travel through liquid — shadow zone proves Earth's outer core is liquid. ‌​‍Surface waves (Rayleigh, Love) cause most damage.

Answer

Same speed

Answer

Surface only

Answer

Slower

Question 8

The periodic table was created by:‌​‍

Accepted Answer

Mendeleev — Dmitri Mendeleev created the periodic table in 1869, arranging elements by atomic weight.‌​‍

Answer

Dalton

Answer

Bohr

Answer

Rutherford

Question 9

Shakespeare's 'seven ages of man' ends with the stage characterised by:

Accepted Answer

Second childhood (sans teeth, sans eyes…) — Final age: 'second childishness and mere oblivion / sans teeth, sans eyes, sans taste, sans everything'.

Answer

Infancy

Answer

Middle age

Answer

Youth

Question 10

How many rivers does Kerala have?‌​‍

Accepted Answer

44 — Kerala has 44 rivers — 41 flowing west into the Arabian Sea, 3 flowing east.‌​‍

Answer

34

Answer

38

Answer

50

HSA Mixed Practice Test #248