EASY
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Earn 100

Who invented Air Conditioning?
(a)Jacob Schick
(b)Willis Carrier
(c)James Hargreaves
(d)John Boyd Dunlop

50% studentsanswered this correctly

Important Questions on Scientists and Their Inventions
EASY
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Electric Lamp?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Neutron?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Safety Pin?

EASY
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Ballistic missile?

EASY
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Bicycle?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented HIV?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Bleaching Powder?

MEDIUM
Rajasthan RSMSSB Gram Vikas Adhikari VDO
IMPORTANT
Who invented Dynamo?
