TEMPERATURE – Air – DGCA Question Bank For Politics

#1. Diurnal variation of temperature is greatest when wind is

calm

light

strong

#2. Diurnal variation of temperature is maximum over

forest

ocean

land

#3. On a clear day the amount of solar radiation received by earth surface is

3/4

30%

5/6

#4. ALBEDO is

Radiation received by earth

Amount of heat

Reflecting power of earth

#5. During day the ambient temperature is _____ than ground

Lower

Higher

Same

#6. Diurnal variation of temperature over ocean is _____

More than land

Above 3°C

Less than 1°C

#7. At a coastal station the diurnal variation of temperature depends on

Wind direction

Wind speed

Radiation

#8. Snow surface reflects about ______ % of solar radiation.

75%

80%

90%

#9. Amount of Solar radiation received per unit area is

Insolation

Convection

Radiation

#10. Solar radiation received by the earth is

Long Wave

Albedo

Shortwave

#11. Rise in temperature of a surface is proportional to its specific heat

Directly

Inversely

slowest

#12. Specific heat of land is _____ than that of water

Lower

Same

Higher

#13. Minimum temperature is reached at

sunrise

midnight

1/2 - 1 hour after dawn

#14. An air parcel is lifted till it gets saturated. The temperature attained by its called

Wet bulb

Dew point

Potential temperature

#15. Cloudy nights are

cold

normal

warm

#16. Water vapour is transparent to terrestrial radiation

completely

partially

indifferent

#17. Higher the temperature ______ would be the wavelength of emitted radiation

longer

shorter

#18. Air is a bad conductor of heat. A parcel of air can therefore be regarded as insulated from the environment

False

True

#19. Warmer the earth _____ will be the Nocturnal radiation

intense

weaker

moderate

#20. Heat is the _____ of the KE of all the molecules and atoms of a substance

sum total

average

#21. The solar radiation consists of about 46%

UV

IR

Visible

#22. The total energy radiated by a black body is proportional to its temperature(T)

T²

T³

T4

#23. Intense radiation are emitted by

Hot bodies

Cold bodies

Stars

#24. The wavelength of most intense radiation is inversely proportional to its

Absolute temperature

Humidity

Albedo

#25. Hot bodies (like sun) radiate

Short Waves

Long Waves

Both

#26. The flow of heat from earth surface is 77% by

Sensible Heat

Latent Heat

#27. -40°C = -40°F

True

False

#28. The door of Stevenson's screen should open

opposite to sun

into sun

any direction

#29. The liquid used in Minimum Thermometer is

mercury

alcohol

sprit

#30. Freezing point of water is

0°F

12°F

32°F

#31. Boiling point of water is

100°F

212°F

312°F

#32. Freezing point of water is

173 K

273 K

373 K

472 K

#33. Boiling point of water is

373 K

312°K

173 K

273°K

#34. Convert 68°F into Kelvin temperature

233 K

283 K

294 K

293 K

#35. Diurnal variation of temperature is least on a day when it is

Clear

Partly cloudy

Cloudy

Overcast

#36. A clear and calm night is cooler than a cloudy night, because nocturnal radiation

escape through cold

are partly radiated back by clouds to earth

are fully absorbed by H²O

are fully prevented by clouds to escape

#37. Which surface will cause higher diurnal variation

Forest

Desert

Water

Snow

#38. If temperature does not change in a layer with height on a day indicates

Isothermal layer

Inversion

Instabilty

Uniform Lapse Rate

#39. Surface Temperature is recorded at a height of _____ above ground

2 m

1.5 m

1.25 m

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