- (A) Mesosphere
- (B) Troposphere
- (C) Stratosphere
- (D) ionosphere
Exam preparation MCQs with answers
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- (A) One tenth
- (B) One fifth
- (C) One fourth
- (D) One third
- (A) The mass of the astronaut is reduced to zero
- (B) Gravity inside the spacecraft ceases to act
- (C) The astronaut is outside the influence of the earth’s gravitational force
- (D) The astronaut and the spacecraft are both in a free-failing state
- (A) Viscosity of ink
- (B) Capillary action phenomenon
- (C) Diffusion of ink through the blotting
- (D) Siphon action
- (A) Increasing the temperature of water
- (B) Reacting chemically with dirt
- (C) Reducing the surface tension of water
- (D) Dissolving dirt
- (A) The hair barging against the charged comb
- (B) Small electric sparks
- (C) The rubbing of the comb with the hair
- (D) None of the above
- (A) Electroplating
- (B) Annealing
- (C) Galvanization
- (D) Vulcanization
- (A) Steam can penetrate the skin
- (B) Steam is at a higher temperature
- (C) Steam contains more energy than boiling water
- (D) Steam is at a higher pressure
- (A) Water is good conductor of heat
- (B) Water has very high specific heat capacity
- (C) Water boils at a comparatively high temperature
- (D) Evaporation of water produces lot of cooling
- (A) Remain unaffected
- (B) Fall away from the train
- (C) Fall towards the train
- (D) Fall away from or towards the train depending upon the speed
