SAFA Sample Exam 220 -Meteorology -print Fig 98

What name is given to describe an elongated area of low pressure?

• Col.

• Trough.

• TROWAL.

• Ridge.

Assuming that the MSL pressure remains constant, the altitude of a pressure level aloft

• is higher in warm air than in cold air.

• is higher in cold air than in warm air.

• is the same altitude in warm air as in cold air.

• varies randomly with the air temperature: no relationship can be definitively stated.

A pilot flying an aircraft at an indicated altitude of 7,000 feet from Station A (elevation 1,000 feet ASL) to Station B (elevation 800 feet ASL) passes over a hill (elevation 3,000 feet ASL) situated exactly one half-way between the two stations. If the current altimeter setting at A is 30.32" Hg and the pilot does not reset the aircraft altimeter to the current setting at B of 28.52" Hg, assuming that the temperature remains constant, the aircraft will clear the hill by ______.

• 3,100 feet.

• 3,050 feet.

• 1,800 feet.

• 1,700 feet.

The amount of water vapour that a parcel of air can hold is determined by the

• relative humidity.

• air temperature.

• adiabatic lapse rate.

• dewpoint.

When air ascends, the relative humidity ______ and water vapour

• increases, condenses.

• increases, evaporates.

• decreases, evaporates.

• decreases, condenses.

Which of the following cloud types is described as "a uniform veil, usually grey or bluish, through which the sun or moon shines dimly"?

• Cirrostratus.

• Cirrocumulus.

• Altostratus.

• Altocumulus.

What type of cloud is formed by mechanical turbulence?

• Cu.

• ACC.

• AS.

• SC.

An air mass is a large body of air having uniform properties of

• temperature and pressure in the horizontal

• temperature and moisture in the horizontal

• volume and mass in the vertical and horizontal

• volume, mass and temperature in the vertical

Where the warm air mass of a warm front is moist and unstable, what cloud types can be expected with the arrival of the front?

• cirrus, then cirrostratus, then altostratus or altocumulus, then nimbostratus.

• cirrus, then stratocumulus, then cirrocumulus, then nimbostratus.

• choice b) with cumulonimbus embedded in the main cloud deck.

• choice a) with cumulonimbus embedded in the main cloud deck.

The mature stage of a thunderstorm will have

• updrafts only.

• downdrafts only.

• both updrafts and downdrafts.

• no general rules apply about updrafts/downdrafts apply in this case.