Ground Icing: De-Icing Operations

Use the questions on the following pages to help review what you have learned in this module.

For each question, click on the answer that you think is correct to get a response. If you are not correct (or if you would like to see the responses to the other choices), click on another option. If you do not understand why an option is correct or incorrect, please review the relevant section of this module.

This is not a test. Your answers are not recorded and no score will be calculated.

Question 1

De-icing fluid should be applied...

A. Hot with a broad spray pattern

B. Hot with a narrow spray pattern

C. Cold with a broad spray pattern

D. Cold with a narrow spray pattern

Question 2

De/anti-icing fluid can cause problems when sprayed directly on:

De-icing truck applying Type I fluid to aircraft

A. Control surfaces

B. AOA vanes, pitot tubes, and other sensors

C. APU intakes and engine inlets

D. Both B and C

Question 3

It is very cold outside and cold dry snow is falling. According to the ATIS it is –14C. Your aircraft has been parked in an unheated hanger all night. Should you turn on the heat in the hangar so that the aircraft surface will be warmer before it is pulled out of the hangar?

A. Yes. The snow will melt and you won’t need to deice.

B. Yes. The snow won't melt, but it will take less fluid to anti-ice.

C. No. Cold dry snow won't stick to a cold dry aircraft and you won't need to deice.

D. Whether or not you heat the aircraft is irrelevant; you will still need to deice.

Question 4

You are the pilot of a single engine aircraft. It’s a beautiful day, but the aircraft is covered with ice. What can you use to de-ice your aircraft?

A. Brooms or squeegees

B. Hot air

C. De-icing fluid

D. All of the above

Question 5

It is bitterly cold outside. At least the wind isn’t blowing through the cockpit. The ground crew has just finished de-icing your aircraft and the person in charge waves you off. What should you do?

A. Salute and depart.

B. Inspect the aircraft; if it looks clean, depart.

C. Inspect the aircraft; if it looks clean, taxi for takeoff. If it still looks clean, depart.

Question 6

You are flying a light twin. You tried to clear the frost off of the aircraft with a broom, but it has formed again. The always-helpful fellow from the local FBO says that he would be willing to spray your aircraft with Type I, which is approved for your aircraft. Should you have Type I fluid sprayed on your aircraft?