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block

When isobars, for an area in the mid-latitudes on a weather map, are close together, the wind is most likely to be:

Select the correct answer(s).  

(0/0)

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d.blowing perpendicular to the isobars.

b.light.

c.strong.

a.changing direction rapidly.

none

14. What condition would cause your indicated altitude to be lower than that being actually flown?

Select the correct answer(s).  

(0/0)

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Pressure lower than standard.

Temperature higher than standard.

Pressure is standard.

Temperature lower than standard.

none

Density at the surface will be low when:

Select the correct answer(s).  

(0/0)

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c.pressure is low and temperature is low.

d.pressure is low and temperature is high.

b.pressure is high and temperature is low.

a.pressure is high and temperature is high

none

How does the height of the tropopause normally vary with latitude in the northern hemisphere?

Select the correct answer(s).  

(0/0)

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a.It remains constant throughout the year.

b.It decreases from south to north.

c.It remains constant from north to south

d.It increases from south to north.

none

The isobars drawn on a surface weather chart represent lines of equal pressure:

Select the correct answer(s).  

(0/0)

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c.at a determined density altitude.

d.reduced to sea level.

a.at flight level.

b.at height of observatory.

none

The tropopause is a level at which:

Select the correct answer(s).  

(0/0)

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a.water vapour content is greatest

c.vertical currents are strongest

b.pressure remains constant

d.temperature ceases to fall with increasing height.

none

In the lower part of the stratosphere the temperature

Select the correct answer(s).  

(0/0)

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d.decreases with altitude.

b.increases at first and decreases afterward.

c.is almost constant.

a.increases with altitude.

none

If you are flying on a QNH 1009 on very cold day and you circle the top of a peak in the Alps, your altimeter will read:

Select the correct answer(s).  

(0/0)

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a.the same as the elevation of the peak.

b.lower than the elevation of the peak.

c.higher than the elevation of the peak.

d.not enough information to tell

none

is 1003. At FL100 true altitude is 10,000 ft. Is it:

Select the correct answer(s).  

(0/0)

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colder than ISA.

warmer than ISA.

same as ISA.

cannot tell.

none

The tropopause is lower:

Select the correct answer(s).  

(0/0)

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over the North Pole than over the equator.

over the equator than over the South Pole.

in summer than winter in moderate latitudes.

south of the equator than north of it.

none

13. When is pressure altitude equal to true altitude?

Select the correct answer(s).  

(0/0)

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b.When surface pressure is 1013.25mb.

d.When the indicated altitude is equal to the pressure altitude.

c.When the temperature is standard.

a.In standard conditions.

none

The station pressure used in surface weather charts is:

Select the correct answer(s).  

(0/0)

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b.QFF.

a.QNE.

c.QFE.

d.QNH.

none

Which one of the following statements applies to the tropopause?

Select the correct answer(s).  

(0/0)

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d.It is, by definition, a temperature inversion.

a.It separates the troposphere from the stratosphere.

c,It indicates a strong temperature lapse rate.

b.It is, by definition, an isothermal layer.

none

15. Which statement is true?

Select the correct answer(s).  

(0/0)

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QNH is always lower than QFH.

QFE can be equal to QFF only.

QFE is always lower than QNH.

QNH can be equal to QFE.

none

What surface weather is associated with a stationary high pressure region over land in the winter?

Select the correct answer(s).  

(0/0)

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d.Thunderstorms.

c.A tendency for fog and low stratus.

a.Thick stratus with continuous rain.

b.The possibility of snow showers.