Science Test 4 General Science Aptitude
Science Test 4 General Science Aptitude
Question 11
What is 'Stealth Technology'?
Stealth technology uses coatings to reduce aircraft visibility on radar.
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Question 12
The primary function of the feathers in birds is to_____?
The primary function of feathers is to provide a striking surface for flight.
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Question 13
The rear view mirror of a motor vehicle is_____?
Rear-view mirrors are convex to give a wider field of view.
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Question 14
Lead ball falls through water more slowly than through air because_____?
The viscous force in water slows down the fall of the lead ball.
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Question 15
A Fahrenheit thermometer indicates a temperature of 14°F. Its corresponding reading on the Celsius scale will be_____?
14°F corresponds to -10°C on the Celsius scale.
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Question 16
Which one of the following sets of color combinations is added in color vision in TV?
TV color vision works by adding red, green, and blue light.
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Question 17
A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to_____?
The boy may fall towards the train due to air pressure difference and suction effect.
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Question 18
Water is a highly effective coolant for a car engine because_____?
Water is an effective coolant due to its very high specific heat capacity.
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Question 19
Scalding with steam is more severe than scalding by boiling water because_____?
Steam contains more energy than boiling water, causing more severe burns.
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Question 20
In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as_____?
Coating iron with zinc to prevent corrosion is called galvanization.