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161.   I28     LSP          

Which cloud types would indicate convective turbulence?

A) Cirrus clouds.

B) Nimbostratus clouds.

C) Towering cumulus clouds.



162.   I28     LSP          

Where does wind shear occur?

A) Only at higher altitudes.

B) Only at lower altitudes.

C) At all altitudes, in all directions.



163.   I28     LSP          

If a temperature inversion is encountered immediately after takeoff or during an approach to a landing, a potential hazard exists due to

A) wind shear.

B) strong surface winds.

C) strong convective currents.



164.   I25     LSP          

If an unstable air mass is forced upward, what type clouds can be expected?

A) Stratus clouds with little vertical development.

B) Stratus clouds with considerable associated turbulence.

C) Clouds with considerable vertical development and associated turbulence.



165.   I25     LSP          

What are characteristics of a moist, unstable air mass?

A) Cumuliform clouds and showery precipitation.

B) Poor visibility and smooth air.

C) Stratiform clouds and showery precipitation.



166.   I26     LSP          

The suffix 'nimbus,' used in naming clouds, means

A) a cloud with extensive vertical development.

B) a rain cloud.

C) a middle cloud containing ice pellets.



167.   I25     LSP          

Which is a characteristic of stable air?

A) Cumuliform clouds.

B) Excellent visibility.

C) Restricted visibility.



168.   I22     LSP          

Which factor would tend to increase the density altitude at a given airport?

A) An increase in barometric pressure.

B) An increase in ambient temperature.

C) A decrease in relative humidity.



169.   I24     LSP          

Clouds, fog, or dew will always form when

A) water vapor condenses.

B) water vapor is present.

C) relative humidity reaches 100 percent.



170.   I23     LSP          

Which is true with respect to a high- or low-pressure system?

A) A high-pressure area or ridge is an area of rising air.

B) A low-pressure area or trough is an area of descending air.

C) A high-pressure area or ridge is an area of descending air.


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