5842829
Description
Quiz by tsampikos pompou, updated more than 1 year ago
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Created by tsampikos pompou
over 8 years ago
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Question 1
Question
312 Cloud described as 'a transparent whitish veil of fibrous or smooth appearance totally or partly covering the sky producing a halo phenomenon', indicates:
Answer
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O cirrostratus.
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O altostratus.
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O castellanus.
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O cumulonimbus
Question 2
Question
313 As a parcel of air rises, it cools by the process of:
Answer
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O adiabatic expansion.
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O expulsion of long-wave radiation.
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O conductive mixing.
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O freezing
Question 3
Question
314 The passage of a cold front means that the pressure:
Answer
-
O rises
-
O falls
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O remains steady
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O depends on humidity
Question 4
Question
316 The heat energy required to change state, but not temperature, is called:
Answer
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O latent heat.
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O transient heat.
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O specific heat.
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O melting heat
Question 5
Question
317 [Fig.16] When is advection fog most likely to form?
Answer
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O When warm, moist air moves across a cold land surface and is cooled below its dewpoint temperature.
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O When warm, moist air moves across a warm sea surface and is cooled to saturation.
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O When dry, warm air moves across a cold sea causing evaporation and consequently condensation.
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O None of those
Question 6
Question
318 When a wind changes direction from northly to north-westerly, it is said to have:
Answer
-
O backed in either hemisphere
-
O backed in the northern hemisphere and veered in the southern hemisphere.
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O veered in either hemisphere.
-
O veered in the northern hemisphere and backed in the southern hemisphere.
Question 7
Question
319 You depart from aerodrome of Kastelorizo (LGKJ), (situated 474 feet above mean sea level (AMSL) with a QNH of 1011 hpa set on the altimeter subscale. The flight is conducted towards an area of low pressure and you fail to update the subscale setting (due to being non-radio). You anticipate a visual landing at the aero¬drome οf Kasteli(LGTL). What will the altimeter read when the aircraft lands at the destination aerodrome, which has an elevation of 1180 feet AMSL, if the QNH is 994 hpa?
Answer
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O 1690
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O 1750
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O 950
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O 1197
Question 8
Question
320 Density will be low when the:
Answer
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O pressure is low and temperature is high.
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O pressure is low and temperature is low.
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O pressure is high and temperature is high.
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O pressure is high and temperature is low
Question 9
Question
321 A cumulonimbus with an anvil, signifies that the thunderstorm is in the:
Answer
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O decaying stage.
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O cumulus stage.
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O mature stage.
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O none of those.
Question 10
Question
322 The force that causes a parcel of air to start moving from an area of high pressure to an area of low pressure is called the:
Answer
-
O pressure gradient force.
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O Coriolis force.
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O gradient force.
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O centrifugal force
Question 11
Question
323 If maritime air is heated from below, as it moves from its source region, it is likely to become:
Answer
-
O unstable.
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O conditionally unstable.
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O stable.
-
O none of those.
Question 12
Question
324 The rate of decrease of temperature in rising saturated air is less than for rising unsaturated air. Why is this the case?
Answer
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O Latent heat is released during the condensation process, and therefore warms the surrounding air, reducing the rate of temperature decrease.
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O Saturated air rises more slowly, with a resultant decrease in the rate of cooling.
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O Saturated air resists mixing with the cooler upper air.
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O Saturated air is more dence
Question 13
Question
325 The temperature at 10,000 feet above mean sea level (AMSL) in the International Standard Atmosphere (ISA) should be:
Answer
-
O -5°C.
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O -10°C.
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O -15°C.
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O d -20?C
Question 14
Question
326 The heating of the atmosphere is caused by:
Answer
-
O long-wave radiation from the surface of the Earth.
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O reflected radiation from the Earth's surface.
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O direct short-wave radiation from the Sun.
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O the latent heat of the water vapor
Question 15
Question
327 The determined surface temperature is +13°C and at 4000 feet it is +6°C. The state of the atmosphere may be described as:
Answer
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O conditionally unstable.
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O unstable.
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O stable.
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O neutrally stable
Question 16
Question
328 The amount of water vapour that air can hold is determined by its:
Answer
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O temperature.
-
O density.
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O pressure.
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O dew point
Question 17
Question
329 The approximate height (AMSL) of the tropopause in the 'average' ISA is:
Answer
-
O 36,000 feet.
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O 24,000 feet.
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O 60,000 feet.
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O 11,000 feet
Question 18
Question
330 A powerful wind over a mountain range which causes rotor cloud and strong downdraughts, may be marked by:
Answer
-
O lenticularis.
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O stratus.
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O cumulus.
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O cumulonimbus
Question 19
Question
331 Given a surface temperature of +22°C and a dewpoint of +10°C, at approxi¬mately what height is the base of any cumuliform cloud likely to be?
Answer
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O 5000 feet.
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O 3500 feet.
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O 2500 feet.
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O 3000 feet
Question 20
Question
332 Which of the following never appear in a TAF?
Answer
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O Both, temperature/dew pt and QNH.
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O Temperature/dewpoint.
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O QNH.
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O wind
Question 21
Question
333 The stability of the atmosphere is likely to be reduced when:
Answer
-
O it is warmed from below.
-
O water vapour is removed from it.
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O it is cooled from below.
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O it is warmed from upper
Question 22
Question
334 What does the following illustration depict?
(See Fig.33)
Answer
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O A cold occlusion.
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O A warm occlusion.
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O A warm front
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O A cold front
Question 23
Question
335 In the international Standard Atmoshere the mean sea level pressure equates to:
Answer
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O 29.92 inches of mercury.
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O 14.7 grammes per square inch.
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O 1225 hPa
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O 1021 hPa
Question 24
Question
336 The Katabatic wind is:
Answer
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O much stronger than the Anabatic wind.
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O much weaker than the Anabatic wind.
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O approximately the same strength as the Anabatic wind.
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O none of those
Question 25
Question
337 As a warm front passes, the weather gradually becomes:
Answer
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O moderate continuous rain changing to intermittent slight drizzle
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O moderate continuous rain changing to rain showers.
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O slight showers changing to moderate continuous drizzle.
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O none of those
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