HSA Mixed Practice Test #284

Question 1

'Mathematics ___ my favourite subject':‌​‍

Accepted Answer

is — Subjects ending in -ics are singular.‌​‍

Answer

are

Answer

be

Answer

were

Question 2

Brass is an alloy of:

Accepted Answer

Cu + Zn — Brass = ~70% copper + ~30% zinc; used for utensils, fittings.

Answer

Cu + Sn

Answer

Fe + C

Answer

Cu + Al

Question 3

Synonym of LETHARGIC:‌​‍

Accepted Answer

Sluggish — Lacking energy.‌​‍

Answer

Energetic

Answer

Excited

Answer

Active

Question 4

Normal adult human body temperature is approximately:‌​‍

Accepted Answer

37 °C — Normal body temperature is 37 °C (98.6 °F).‌​‍

Answer

42 °C

Answer

39 °C

Answer

35 °C

Question 5

Depression key symptoms:

Accepted Answer

Low mood, loss of interest, sleep/appetite changes, suicidal thoughts — for ≥2 weeks — Major Depressive Disorder (MDD). SSRIs (fluoxetine), cognitive therapy. Global leading cause of disability.

Answer

Mood

Answer

Only sadness

Answer

Temporary

Question 6

The speed of light is:‌​‍

Accepted Answer

3 × 10⁸ m/s — Speed of light in vacuum ≈ 3 × 10⁸ m/s.‌​‍

Answer

3 × 10⁶ m/s

Answer

3 × 10¹⁰ m/s

Answer

3 × 10⁴ m/s

Question 7

CRISPR is related to:‌​‍

Accepted Answer

Gene editing — CRISPR-Cas9 is a revolutionary gene-editing technology that can modify DNA sequences.‌​‍

Answer

Computing

Answer

Space travel

Answer

Robotics

Question 8

Kerala Industrial Development Corporation:

Accepted Answer

KINFRA — KSIDC primary industrial dev.

Answer

KSIDC

Answer

Both

Answer

KSFE

Question 9

Ionic bond formation involves:‌​‍

Accepted Answer

Transfer of electrons — metal to non-metal — E.g., Na → Na⁺ + e⁻, Cl + e⁻ → Cl⁻. ‌​‍Held by electrostatic attraction. High m.p., soluble in polar solvents.

Answer

Only attraction by gravity

Answer

Magnetism

Answer

Sharing electrons

Question 10

The Poona Pact (1932) was between:‌​‍

Accepted Answer

Gandhi and Ambedkar — The Poona Pact was between Gandhi and Ambedkar regarding representation of depressed classes, replacing separate electorates with reserved seats.‌​‍

Answer

Gandhi and Jinnah

Answer

Jawaharlal Nehru and Patel

Answer

Gandhi and Irwin

HSA Mixed Practice Test #284