The main reason for heat transfer between fluid and gas is-
A. Conduction
B. Convection
C. Radiation
D. Both conduction and deformation
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By which law of thermodynamics do you know the law of energy conservation?
A. Zero law
B. First law
C. Second law
D. Third law
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Melting point of ice is-
A. 273 K
B. -273 C
C. 273 C
D. -273 K
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Zero degree centigrade is equal to how many degrees Fahrenheit-
A. 100°F
B. 30°F
C. 36°F
D. 32°F
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Air coolers are more suitable for
A. hot and humid climate
B. hot and dry climate
C. cool and humid climate
D. cool and dry climate
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Lightning can even bum a tree because it contains tremendous amount of
A. Heat energy
B. Electric energy
C. Chemical energy
D. Nuclear energy
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The body temperature of a healthy man is
A. 37° Celsius
B. 37° Fahrenheit
C. 98.4° Celsius
D. 98.4° Kelvin
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What is sublimation?
A. It is the process of conversion of a liquid into gas
B. It is the process of conversion of a solid into liquid
C. It is the process of conversion of a solid into vapour
D. It is the process of conversion of a gas into liquid
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At what point the Fahrenheit temperature is double of Centigrade temperature?
A. -6.7°C
B. -12.3°C
C. 12.3°C
D. 160°C
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What is the measure of the moisture present in air?
A. Opacity
B. Abrasion
C. Precipitation
D. Humidity
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Humidity refers to
A. direction of wind
B. temperature of the air
C. moisture content of the air
D. pressure of the air
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Why water particles at zero degree centigrade have more energy than ice particles at the same temperature?
A. During the process of conversion of ice from ice to liquid water, water absorbs energy in it
B. Because during the process of conversion from ice to water vapour, water absorbs energy in it
C. Because during the process of conversion from ice to liquid water, water radiates energy in it
D. Because during the process of conversion from ice to liquid water, ice particles absorb heat energy in it
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The atmosphere exerts enormous pressure on us. But, we do not feel it because
A. Our blood exerts a pressure slightly more than that of the atmosphere
B. We are used to it
C. Our bones are very strong and can withstand the pressure
D. The surface area of our head is very small
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If we plot a graph between volume V and inverse of pressure p (i.e. p 1 ) for an ideal gas at constant temperature T, the curve so obtained is in
A. straight line
B. circle
C. parabola
D. hyperbola
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. . . . . . . . codified the first two laws of thermodynamics and deduced that the absolute zero of temperature is -273.15°C. He was honoured for this with then naming of the Kelvin temperature scale.
A. William Crookes
B. William Thomson
C. Luis Alvarez
D. Robert Hooke
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Which of the following is the conductor of electric charge?
A. Glass
B. Paper
C. Copper
D. Water
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One calorie of heat energy is equivalent to approximately . . . . . . . . joules of mechanical energy.
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What temperature will Celsius and Fahrenheit scale show a similar reading?
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At what temperature are the reading of a Centigrade and Fahrenheit thermometer the same?
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What is Heat Balance?
A. The balance between the outgoing heat of the sun and the incoming heat absorbed by the earth
B. Solar radiation
C. The balance between the incoming heat absorbed by the earth and the outgoing heat in the form of radiation
D. Terrestrial radiation
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