DCOA Mixed Practice Test #752

Question 1

Blood: A is son of B, B is daughter of C. C to A:

Accepted Answer

Grandmother — C female → grandmother.

Answer

Father

Answer

Grandfather

Answer

Uncle

Question 2

Chipko Movement (1973) to save forests was led by:‌​‍

Accepted Answer

Sunderlal Bahuguna and Chandi Prasad Bhatt — Chipko started in Reni village, Chamoli (Uttarakhand). ‌​‍'Chipko' = embrace the trees to prevent felling.

Answer

Baba Amte

Answer

Ela Bhatt

Answer

Medha Patkar

Question 3

The chemical symbol of Iron is:‌​‍

Accepted Answer

Fe — Iron's chemical symbol is Fe (from Latin 'Ferrum'). ‌​‍Ir = Iridium, In = Indium, I = Iodine.

Answer

I

Answer

Ir

Answer

In

Question 4

Gay-Lussac's law of gaseous volumes:‌​‍

Accepted Answer

Volume ratios of reactant/product gases are small whole numbers at same T, P — Basis of Avogadro's hypothesis: equal volumes have equal number of molecules.‌​‍

Answer

Mass ratios

Answer

Density ratios

Answer

Time ratios

Question 5

Cell theory was proposed by:‌​‍

Accepted Answer

Schleiden and Schwann (1838-39) — All living organisms are composed of cells. ‌​‍Virchow (1855): 'Omnis cellula e cellula' — cells arise from pre-existing cells.

Answer

Watson-Crick

Answer

Darwin

Answer

Mendel

Question 6

Kurinji Mala is the highest peak in:‌​‍

Accepted Answer

Idukki — Anamudi (2,695m) in Idukki is Kerala's highest peak.‌​‍

Answer

Wayanad

Answer

Palakkad

Answer

Pathanamthitta

Question 7

Republic Day 2024 chief guest:‌​‍

Accepted Answer

Macron — President Emmanuel Macron.‌​‍

Answer

Modi

Answer

Biden

Answer

Putin

Question 8

Which Indian state was the first to establish a full-fledged university for women in 1916?

Accepted Answer

D. West Bengal — The first full-fledged women's university in India was the SNDT Women's University, established in 1916 in Bombay (now Mumbai), Maharashtra. Tamil Nadu and Kerala had women's colleges earlier, but not full universities. West Bengal's Bethune College (1879) was the first women's college, not a full university.

Answer

A. Tamil Nadu

Answer

B. Kerala

Answer

C. Maharashtra

Question 9

SCP (Single Cell Protein):‌​‍

Accepted Answer

Protein from unicellular microbes — alternative protein source — Spirulina, yeast. ‌​‍Uses cellulose or agro waste as substrate. Combat protein malnutrition.

Answer

Plant protein

Answer

Synthetic

Answer

Animal cell

Question 10

Miller's magical number (STM capacity):

Accepted Answer

7 ± 2 items — George Miller (1956). Chunking can expand effective capacity. Modern estimates ~4 ± 1 for working memory.

Answer

3

Answer

20

Answer

100

DCOA Mixed Practice Test #752