Unformatted text preview: a) The centrifugal force (b) The Coriolis force
force (d) None of the above (c) The centrifugal force and the Coriolis ANS A o 7. What is the dew point of an air mass at a temperature of 25 C and a relative humidity of 30%.
o o o o (a) 6 C (b) 14.5 C (c) 25 C (d) -10 C
ANS A 8. A descending air mass under adiabatic conditions will:
(a) Increase its temperature and relative humidity (b) Become unstable (c) Increase
temperature and decrease in total energy (d) Increase temperature with no change in
energy ANS D 9. Air that has reached its saturation vapour pressure can:
(a) Result in dew forming (b) Result in rain (c) Not absorb any more moisture (d) All of these
three ANS D o o 10. During a thunderstorm, air at 90% relative humidity (RH) and 30 C cools to 15 C and 100%
RH. How much energy is released per kg of air?
(a) 42 kJ (b) 51 kJ (c) 35 kJ (d) None ANS B
11. Which of the following contributes to the clockwise flow of the north Atlantic gyre?
(a) Low water salinity (b) The trade winds (c) Temperature differences between deep and
shallow water in the north Atlantic (d) location close to the horse latitudes ANS B 12. Which two forces are required to be in balance in order for geostrophic winds to occur?
(a) Gravity and pressure gradient (b) Pressure gradient and friction (c) Coriolis and friction
force (d) Coriolis and pressure gradient ANS D 13. A downdraft wind is a phenomenon relat...
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- Fall '14