Plus 2 Lecturer Mixed Practice Test #721

Question 1

The velocity of sound is highest in:‌​‍

Accepted Answer

solid — Sound travels fastest in solids due to closely packed particles. ‌​‍In vacuum, sound cannot travel.

Answer

gas

Answer

liquid

Answer

vacuum

Question 2

pH value of pure water is:‌​‍

Accepted Answer

7 — Pure water has a pH of 7, which is neutral. ‌​‍pH below 7 is acidic, above 7 is alkaline/basic. This is one of the most basic chemistry facts tested in PSC.

Answer

14

Answer

0

Answer

1

Question 3

Nuclear family consists of:‌​‍

Accepted Answer

Parents and unmarried children — Nuclear family = mother + father + unmarried children. ‌​‍Dominant in modern urban societies.

Answer

Extended kin

Answer

Only siblings

Answer

Only couple

Question 4

Name the world football player who got the FIFA Ballon d'Or Award (2015):‌​‍

Accepted Answer

Messi — Lionel Messi won the 2015 FIFA Ballon d'Or (5th time).‌​‍

Answer

Rooney

Answer

Neymar

Answer

Zidane

Question 5

A train 520 m long is running with a speed of 90 km/hr. In what time will it cross a bridge 130 m long?

Accepted Answer

26 second — Total distance = 520+130 = 650 m. Speed = 90 km/h = 25 m/s. Time = 650/25 = 26 seconds.

Answer

25 second

Answer

32 second

Answer

30 second

Question 6

NATO (North Atlantic Treaty Organization) was formed in:‌​‍

Accepted Answer

1949 — NATO signed 4 April 1949 in Washington. ‌​‍12 original members including USA, UK, France, Canada. Article 5: attack on one = attack on all.

Answer

1945

Answer

1955

Answer

1961

Question 7

The birthplace of direct democracy in the ancient world was:‌​‍

Accepted Answer

Athens (Greece) — Athens, 5th c. BCE — direct citizen participation in the Ecclesia (assembly).‌​‍

Answer

Rome

Answer

Sparta

Answer

Jerusalem

Question 8

Mangrove forests in India:

Accepted Answer

Sundarbans, Bhitarkanika, Pichavaram — Coastal mangroves.

Answer

Himalayas

Answer

Thar

Answer

Nilgiris

Question 9

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

100

Answer

20

Question 10

Cheraman Juma Masjid is at:‌​‍

Accepted Answer

Kodungallur — Kodungallur — traditionally India's first mosque.‌​‍

Answer

Kozhikode

Answer

Kochi

Answer

Kannur

Plus 2 Lecturer Mixed Practice Test #721