LGS Mixed Practice Test #511

Question 1

Isothermal process has:

Accepted Answer

ΔU = 0 for ideal gas; heat equals work — T constant → ΔU = nCvΔT = 0 for ideal gas. Q = W = nRT ln(V2/V1).

Answer

Q = 0

Answer

ΔS = 0

Answer

W = 0

Question 2

Malampuzha dam:‌​‍

Accepted Answer

Palakkad — Palakkad district.‌​‍

Answer

Wayanad

Answer

Kannur

Answer

Idukki

Question 3

The first man to walk on the Moon was:‌​‍

Accepted Answer

Neil Armstrong — Neil Armstrong was the first man to walk on the Moon on 20 July 1969 during NASA's Apollo 11 mission. ‌​‍His famous words: 'One small step for man, one giant leap for mankind.'

Answer

Yuri Gagarin

Answer

Buzz Aldrin

Answer

Michael Collins

Question 4

A 12-month-old child is brought for a routine check-up. The mother reports that the child can pull himself up to stand and move around by holding onto furniture, but is not yet walking independently. Which of the following gross motor milestones is expected for a child of this age?

Accepted Answer

C. Pulls to stand and cruises along furniture — At 12 months, pulling to stand and cruising along furniture are typical gross motor milestones. Walking independently usually develops between 12-15 months. Sitting without support is typically achieved by 6-8 months, and climbing stairs with alternating feet is a much later milestone, around 2-3 years.

Answer

A. Sits without support for extended periods

Answer

B. Walks independently without assistance

Answer

D. Climbs stairs with alternating feet

Question 5

Kerala State Song:‌​‍

Accepted Answer

Jaya Jaya Komala Kerala — 'Jaya Jaya Komala Kerala Dharani' by Bodheswaran.‌​‍

Answer

Jana Gana Mana

Answer

Vande Mataram

Answer

Kerala Naadu

Question 6

Which of the following vitamins is a cofactor for the carboxylation reactions involved in the synthesis of clotting factors like prothrombin?

Accepted Answer

C. Vitamin K — Vitamin K is essential for the carboxylation of glutamic acid residues in clotting factors, enabling them to bind calcium and function in blood coagulation. Deficiency leads to impaired clotting. The other vitamins listed do not play a role in this process.

Answer

A. Vitamin A

Answer

B. Vitamin D

Answer

D. Vitamin E

Question 7

Kerala's renewable energy mainly:‌​‍

Accepted Answer

Hydro — Hydroelectric dominant.‌​‍

Answer

Solar

Answer

Wind

Answer

Biomass

Question 8

The Chipko Movement was led by:‌​‍

Accepted Answer

Sunderlal Bahuguna — Sunderlal Bahuguna and Chandi Prasad Bhatt led the Chipko Movement (1973) in Uttarakhand.‌​‍

Answer

Medha Patkar

Answer

Anna Hazare

Answer

Baba Amte

Question 9

Which of the following elements has the highest first ionization energy in the periodic table?

Accepted Answer

A. Helium (He) — Helium (He) has the highest first ionization energy because it is a noble gas with a completely filled electron shell, making it extremely difficult to remove an electron. While Fluorine (F) has a high ionization energy, it is slightly lower than Helium's due to its smaller atomic radius and higher electron affinity.

Answer

B. Fluorine (F)

Answer

C. Neon (Ne)

Answer

D. Chlorine (Cl)

Question 10

Efficiency of a Carnot engine with sink at 300 K and source at 400 K:‌​‍

Accepted Answer

25% — η = 1 − T_sink/T_source = 1 − 300/400 = 0.25 → 25%.‌​‍

Answer

50%

Answer

75%

Answer

80%

LGS Mixed Practice Test #511