Everyday Science MCQs

5120 MCQs  (Page 26 of 512)

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The rear view mirror of a motor vehicle is ________?
A. Concave
B. Plane
C. Convex
D. Biconcave
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Lead ball falls through water more slowly than through air because __________?
A. The value of ‘g’ is less in water
B. Density of air is less than that of water
C. Of the viscous force in water
D. Of the surface tension of water
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A Fahrenheit thermometer indicates a temperature of ‘ 14°F. its corresponding reading on the Celsius scale will be _________?
A. – 2o°c
B. – 10°c
C. + 10°c
D. + 20°c
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Which one of the following sets of color combinations is added in color vision in TV’?
A. Red, green and blue
B. Orange, back and violet
C. White. red and yellow
D. Yellow, green and blue
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A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to __________?
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
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Scalding with steam is more severe than scalding by boiling water because_______?
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
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In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as____________?
A. Electroplating
B. Annealing
C. Galvanization
D. Vulcanization
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Detergents dissolved in water help in cleaning clothes by_________?
A. Increasing the temperature of water
B. Reacting chemically with dirt
C. Reducing the surface tension of water
D. Dissolving dirt
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The absorption of ink by blotting paper involves__________?
A. Viscosity of ink
B. Capillary action phenomenon
C. Diffusion of ink through the blotting
D. Siphon action
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Materials for rain-proof coats and tents owe their water proof properties to________?
A. Surface tension
B. Viscosity
C. Specific gravity
D. Elasticity
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Word of the Day
16 Jul
Volatile
(of a substance) easily evaporated at normal temperatures.
بدلتے مزاج والا، کافور صفت

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