VFA Mixed Practice Test #512

Question 1

SI unit of time is:‌​‍

Accepted Answer

Second — Second (s) is the SI unit of time.‌​‍

Answer

Minute

Answer

Hour

Answer

Day

Question 2

The Human Genome Project, completed in 2003, mapped approximately how many genes?‌​‍

Accepted Answer

~20,000-25,000 — The HGP revealed that humans have only ~20,000 protein-coding genes — far fewer than initially expected.‌​‍

Answer

~100,000

Answer

~5,000

Answer

~1 million

Question 3

Speed of sound in air:‌​‍

Accepted Answer

343 m/s — ~343 m/s at 20°C.‌​‍

Answer

100 m/s

Answer

3000 m/s

Answer

300000 km/s

Question 4

A clinical pathology report shows significantly elevated levels of Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST). These findings primarily suggest damage to which organ?

Accepted Answer

C. Liver — ALT and AST are enzymes predominantly found in liver cells. When liver cells are damaged, these enzymes leak into the bloodstream, leading to elevated levels. Therefore, significantly elevated ALT and AST are primary indicators of liver damage or disease. While AST can also be found in the heart and skeletal muscle, ALT is more specific to the liver.

Answer

A. Kidneys

Answer

B. Pancreas

Answer

D. Heart

Question 5

Which M.T. Vasudevan Nair novel-character pair is WRONGLY matched?‌​‍

Accepted Answer

Asuravithu — Govindankutty — Central character of 'Asuravithu' is Govindankutty (accepted). ‌​‍PSC key marks 'Kaalam — Sethu' or similar pair wrongly matched — per answer key, Asuravithu is the swap. (Central character actually is Govindankutty in Asuravithu is correct; Kaalam's central character is not 'Sethu'.)

Answer

Kaalam — Sethu

Answer

Randamoozham — Bhima

Answer

Naalukettu — Kunhunni

Question 6

Markovnikov's rule:‌​‍

Accepted Answer

H adds to C with more H's in HX addition to asymmetric alkene — Results in more stable carbocation intermediate. ‌​‍Anti-Markovnikov (peroxide effect) in HBr + peroxide via free radicals.

Answer

Anti-Markovnikov

Answer

E1 elimination

Answer

Free radical

Question 7

Concave lens image:‌​‍

Accepted Answer

Virtual, erect, diminished — Always virtual, erect, smaller.‌​‍

Answer

Real, magnified

Answer

Real, inverted

Answer

No image

Question 8

When rupee depreciates against the dollar, which is true?‌​‍

Accepted Answer

Exports become more competitive; imports costlier — Weak rupee → Indian exports cheaper for foreigners (boost) BUT imports (especially oil) become costlier.‌​‍

Answer

No effect on trade

Answer

Exports become costlier

Answer

Imports become cheaper

Question 9

The largest organ of the human body is the:

Accepted Answer

Skin — Skin, the largest organ, protects and regulates temperature.

Answer

Liver

Answer

Lungs

Answer

Brain

Question 10

Kerala High Court is located at:‌​‍

Accepted Answer

Kochi (Ernakulam) — Kerala High Court is in Kochi (Ernakulam), not in the state capital Thiruvananthapuram. ‌​‍It has jurisdiction over Kerala and Lakshadweep.

Answer

Thiruvananthapuram

Answer

Thrissur

Answer

Kozhikode

VFA Mixed Practice Test #512