HSA Mixed Practice Test #184

Question 1

Implantation refers to:‌​‍

Accepted Answer

Attachment of embryo (blastocyst) to the uterine wall — Implantation occurs ~6–10 days after fertilisation.‌​‍

Answer

Menstruation

Answer

Ovulation

Answer

Fertilisation of egg

Question 2

Terminal velocity of a sphere falling through viscous fluid is proportional to:‌​‍

Accepted Answer

r² — v_t = (2/9) × r² (ρ_s - ρ_f) g/η. Bigger drops fall faster.‌​‍

Answer

r

Answer

1/r

Answer

r³

Question 3

The functional unit of the kidney is:‌​‍

Accepted Answer

Nephron — The Nephron is the functional unit of the kidney. ‌​‍Each kidney has about 1 million nephrons that filter blood to produce urine.

Answer

Neuron

Answer

Alveolus

Answer

Hepatocyte

Question 4

'One of the students ___ absent.'‌​‍

Accepted Answer

is — The subject is 'One' (singular), not 'students'.‌​‍

Answer

have

Answer

are

Answer

were

Question 5

Dead Sea salinity:‌​‍

Accepted Answer

~34% — About 10× oceans.‌​‍

Answer

~50%

Answer

~10%

Answer

~3.5%

Question 6

Shah Jahan built Jama Masjid at:

Accepted Answer

Delhi — Delhi — largest mosque in India.

Answer

Agra

Answer

Fatehpur

Answer

Lahore

Question 7

The Chera dynasty's major port on the Malabar coast during Sangam age was:

Accepted Answer

Muziris (Muchiri, near Kodungallur) — Muziris on the Periyar river traded with Rome (pepper, spices); silted up by 14th century.

Answer

Karaikkal

Answer

Tamralipti

Answer

Sopara

Question 8

Correct: ‌​‍

Accepted Answer

Separate — Separate.‌​‍

Answer

Saparate

Answer

Seperate

Answer

Seperete

Question 9

Which group of elements in the periodic table is characterized by having their valence electrons in the f-orbitals?

Accepted Answer

B. Lanthanides — Lanthanides are the group of elements with valence electrons in the f-orbitals, typically filling the 4f subshell. Transition metals have valence electrons in d-orbitals, halogens in p-orbitals, and alkali metals in s-orbitals, making them distinct from lanthanides.

Answer

A. Transition metals

Answer

C. Halogens

Answer

D. Alkali metals

Question 10

Synonym of REPROBATE:

Accepted Answer

Scoundrel — Unprincipled person.

Answer

Saint

Answer

Hero

Answer

Friend

HSA Mixed Practice Test #184