PSC General Knowledge questions and answer

PSC General Knowledge questions and answer

SCIENCE:

1) Xylology is the study of:

(a) fruits

(b)wood

(c)seed

(d)flower

Ans-->(b)wood

2) Hormone that helps for flowering in plants:

(a) Auxin

(b) Cytokine

(c) Ethylene

(d) Florigin

Ans-->(d) Florigin

3) Which country is the native place of marigold ?

(a) Brazil

(b) India

(c) China

(d) Mexico

Ans-->(d) Mexico

4) The wood used for making ships:

(a) Neem

(b) Teak

(c) Jack tree

(d) Deodar 

Ans-->(b) Teak

5) Which tree is used for making railway sleepers ?

(a) Sal

(b) Deodar

(c) Both (a) and (b)

(d) Willow

Ans-->(c) Both (a) and (b)

6) Who discovered Tachyons ?

(a) J.C Bose

(b) C.V Raman

(c) E.C.G Sudarshan

(d) None of these

Ans-->(c) E.C.G Sudarshan

7) One Horse power equals ----------- Watts:

(a) 746

(b) 846

(c) 946

(d) 1024

Ans-->(a) 746

8) The unit of luminous flux:

(a) Lux

(b) Lumen

(c) Candela

(d) Tesla

Ans-->(b) Lumen

9) One calorie = ----------- Joule:

(a) 5.2

(b) 4.2

(c) 6.2

(d) 7.2

Ans-->(b) 4.2

10) The enzyme in the intestine that digests protein:

(a) Renin

(b) Pepsin

(c) Ptyalin

(d) Lipase

Ans-->(b) Pepsin

11) Which vitamin is called "sunshine vitamin"

(a) D

(b) C

(c) B12

(d) A

Ans-->(a) D

12) Leptospirosis is also known as:

(a) Weil's syndrome

(b) Canicola fever

(c) Both (a) and (b)

(d) None of these

Ans-->(c) Both (a) and (b)

13) How much blood is in the human body?

(a) 2.2 liters

(b) 5.7 liters

(c) 8.1 liters

(d) 9.3 liters

Ans-->(b) 5.7 liters

The average human carries about 192.7 ounces (5.7 liters) of blood. Altogether, this quantity of blood circulates through the body twice a minute.

14)  How many basic tastes can humans sense?

(a) 1

(b) 4

(c) 5

(d) 6

Ans-->(c) 5

Humans can sense five basic tastes: (1) salty (2) sweet (3) sour (4) bitter (5) umami (representing chemicals known as amino acids).

15) What is the word for a person with very pale skin and eyes?

(a) Albanian

(b) Albino

(c) Albion

(d) Alabaster

Ans-->(b) Albino

16) The animal with the heaviest brain:

(a) Blue whale

(b) Baleen whale

(c) Sperm whale

(d) Killer whale

Ans-->(c) Sperm whale

17) Process of cell division can take place by:

(a) Heterosis

(b) Fusion
(c) Mitosis
(d) None of these

Ans-->(c) Mitosis

18) The study of bones:

(a) Oncology

(b) Osteology

(c) Ophthalmology

(d) Myology

Ans-->(b) Osteology

19) Who discovered electro cardio gram?

(a) William Einthoven

(b) William Harvey

(c) Maiman

(d) None of these

Ans-->(a) William Einthoven

20) The force keeping the planets in a regular orbit is:

(a) Electrostatic

(b) Magnetic

(c) Gravitational

(d) Nuclear

Ans-->(c) Gravitational

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PSC General Knowledge questions and answer