LGS Mixed Practice Test #379

Question 1

PM Modi's term after 2024:‌​‍

Accepted Answer

Third — Third consecutive term — first since Jawaharlal Nehru.‌​‍

Answer

Fourth

Answer

First

Answer

Second

Question 2

The power of a lens is measured in:‌​‍

Accepted Answer

Dioptres — P = 1/f (f in metres); SI unit is dioptre (D).‌​‍

Answer

Metres

Answer

Watts

Answer

Candela

Question 3

A Headmaster of a Government High School in Kerala needs to report a significant administrative issue concerning the school's day-to-day operations and seeking immediate guidance from the appropriate district-level authority. Which of the following officials is the direct administrative head for high schools at the district level to whom the Headmaster should report?

Accepted Answer

C. District Educational Officer (DEO) — The District Educational Officer (DEO) is the primary administrative authority for Government High Schools within a district. Headmasters report directly to the DEO for administrative matters and operational issues, making the DEO the appropriate district-level contact. The Deputy Director of Education (DDE) has broader oversight but the DEO is the immediate superior for high school administration.

Answer

A. Deputy Director of Education (DDE)

Answer

B. Block Project Officer (BPO)

Answer

D. Assistant Educational Officer (AEO)

Question 4

Superconductors are materials that have:‌​‍

Accepted Answer

Zero resistance below critical temperature — Below Tc, superconductors exhibit zero electrical resistance and expel magnetic fields (Meissner effect).‌​‍

Answer

Magnetic properties only

Answer

Very high resistance

Answer

Infinite capacitance

Question 5

Restriction enzymes:‌​‍

Accepted Answer

Cut DNA at specific recognition sequences — First isolated from bacteria (defense against phages). ‌​‍E.g., EcoRI recognises GAATTC. Named molecular scissors; basis of genetic engineering.

Answer

Replicate

Answer

Join DNA

Answer

Translate

Question 6

The pH value of pure water at 25 °C is:

Accepted Answer

7 — Pure water is neutral (pH = 7); pH <7 acidic, >7 basic.

Answer

0

Answer

10

Answer

14

Question 7

Which technology is used in a CD-ROM Drive?

Accepted Answer

Optical — CD-ROM uses laser optical reading.

Answer

Mechanical

Answer

Electromechanical

Answer

Fibre Optical

Question 8

Kerala Students' Scholarship schemes:

Accepted Answer

Multiple (minority, merit, etc) — Diverse scholarships.

Answer

Only merit

Answer

None

Answer

Only SC/ST

Question 9

Green Revolution during:‌​‍

Accepted Answer

4th Plan — 4th Plan (1969-74). HYV seeds, irrigation.‌​‍

Answer

2nd Plan

Answer

3rd Plan

Answer

5th Plan

Question 10

Ozone layer in:‌​‍

Accepted Answer

Stratosphere (15-35 km) — Absorbs UV-B/C. ‌​‍Depletion by CFCs. Montreal Protocol 1987. ‌​‍Antarctic ozone hole (Sept-Oct).

Answer

Thermosphere

Answer

Troposphere

Answer

Mesosphere

LGS Mixed Practice Test #379