Commercial Knowledge Quiz (Just for Fun!!)

Question 1) Visibility is reduced by haze when:

Small water droplets are present

a light drizzle falls

a cold front has just passed

dust particles are trapped below an inversion

Correct! Wrong!

Haze is defined as a condition when the visibility is reduced by small solid particles suspended in the air (Examples include: Sand, Dust , Smoke etc..). Haze is usually trapped close to the surface by a low level inversion.

Question 2) Considering a flight director of the ‘command bar’ type:

The vertical bar shows yaw commands

the horizontal bar is associated with the roll channel

the vertical bar is associated with the pitch channel

the vertical bar is associated with the roll channel

Correct! Wrong!

The flight director computes and displays the proper pitch and bank angles required for the aircraft to follow a selected flight path. The vertical bar on the display relates to the amount of roll required in order to get on to the desired track that has been inputted into the flight management computer.

Question 3) An IFR flight is operated in IMC conditions in controlled airspace where radar is not used in the provision of air traffic control services. The aircraft experiences a communications failure, it shall maintain the last assigned:

speed and level for a period of 20 minutes and there after adjust level and speed in accordance with the filed flight plan.

speed and level for a period of 10 minutes and there after descend into VMC and land at the nearest suitable aerodrome.

continue to and land at the nearest suitable aerodrome and advise air traffic control on arrival.

speed and level for a period of 7 minutes and there after adjust level and speed in accordance with the filed flight plan.

Correct! Wrong!

IFR flights will continue according to the filed flight plan in the event of a communications failure. Before deviating from the last assigned level and speed the aircraft must allow a specified period in order for air traffic control to make provisions and move other aircraft. For aircraft under radar control this period is 7 minutes from discovering radio failure and 20 minutes for aircraft not under radar control.

Question 4) Hypoxia is:

a physical condition caused by lack of oxygen in the blood whilst hyper ventilating.

a physical condition caused by a lack of oxygen to meet the needs of the body tissues causing impaired thinking, poor judgement and slow reactions.

a condition of lacking oxygen in the brain causing the circulatory system to compensate by decreasing the heart rate.

often produced during steep turns when pilots turn their heads in the opposite direction to which the aircraft is turning.

Correct! Wrong!

hypoxia is caused by insufficient pressure of oxygen at altitude. At 30,000ft a pilot will only have 30 seconds of useful consciousness following a rapid decompression.