Which of the following gases is used in electric bulbs?
- (A)Â Chlorine
- (B)Â Argon
- (C)Â Hydrogen
- (D)Â Oxygen
- (B)Â Argon
The smoke emitted from industries causes:
- (A)Â Mist
- (B)Â Fog
- (C)Â Smog
- (D)Â Cyclone
- (C)Â Smog
Joule is the unit of:
- (A)Â Luminosity
- (B)Â Power
- (C)Â Energy
- (D)Â Acceleration
- (C)Â Energy
Blood group of human is identified by ______ in the blood.
- (A)Â Antigens
- (B)Â Antibodies
- (C)Â Antitoxin
- (D)Â Antibiotic
- (A)Â Antigens
Who invented Dynamite?
- (A)Â Sir Alexander Graham Bell
- (B)Â Benjamin Franklin
- (C)Â Thomas Alva Edison
- (D)Â Alfred B. Nobel
- (D)Â Alfred B. Nobel
The water potential of pure water at standard temperature is:
- (A)Â Zero
- (B)Â One
- (C)Â Two
- (D)Â Three
- (A)Â Zero
Which of the following animals is herbivore?
- (A)Â Dog
- (B)Â Cat
- (C)Â Lion
- (D)Â Cow
- (D)Â Cow
Who discovered Penicillin?
- (A)Â Charles Darwin
- (B)Â Gregor Mendel
- (C)Â Alexander Fleming
- (D)Â Louis Pasteur
- (C)Â Alexander Fleming
The fundamental law of electromagnetic induction was given by:
- (A)Â Tesla
- (B)Â Michael Faraday
- (C)Â Volta
- (D)Â Isaac Newton
- (B)Â Michael Faraday
The pie-shaped segments on a magnetic disk are called:
- (A)Â Sector
- (B)Â Track
- (C)Â Cylinder
- (D)Â Segment
- (A)Â Sector