Which of the following is a physical change?
- (A) Oxidation
- (B) Sublimation
- (C) Reduction
- (D) Decomposition
- (B) Sublimation
Neurosis is a/an:
- (A) Muscles disorder
- (B) Nervous disorder
- (C) Injury over belly
- (D) None of these
- (B) Nervous disorder
Potential energy is an energy by virtue of its:
- (A) Position
- (B) Motion
- (C) Mechanism
- (D) Volume
- (A) Position
Which of the following is based on the process of fusion?
- (A) Napalm bomb
- (B) Atom bomb
- (C) Hydrogen bomb
- (D) Nitrogen bomb
- (C) Hydrogen bomb
Life-boat is used:
- (A) For flying purposes
- (B) In emergency on a ship
- (C) For swimming in oceans
- (D) In emergency on a plane
- (B) In emergency on a ship
Who invented the modern Fountain pen in 1884?
- (A) Edison
- (B) Lewis Waterman
- (C) Berliner
- (D) Walter Hunt
- (B) Lewis Waterman
When was the law of heredity discovered?
- (A) 1865
- (B) 1875
- (C) 1888
- (D) 1891
- (A) 1865
Parachute is used for:
- (A) Emergency on a ship
- (B) Breathing in air
- (C) Aircraft for emergency
- (D) None of these
- (C) Aircraft for emergency
A device used for the measurement of “Radio-activity” is:
- (A) Mass spectrometer
- (B) Cyclotron
- (C) Geiger Counter
- (D) None of these
- (C) Geiger Counter
Ozone layer is depleting due to:
- (A) Pollution
- (B) Noise
- (C) Smoking of aero-planes
- (D) None of these
- (A) Pollution