Ancillary Controls

Question 1

what is the cause of carburetor icing

Answer 1

in certain moist (humid) atmospheric conditions, it is possible for ice to from in induction system due to the rapid cooling caused by the absorption of heat for the vaporization of fuel and also due to the high expansion of air through the venturi

Question 2

when is carburetor icing more probable?

Answer 2

when the butterfly valve is closed (less probable when the butterfly valve is open

Question 3

how much engine power do you lose when using carb heat

Answer 3

9%

Question 4

how long should you apply carb heat

Answer 4

30 sec

Question 5

how should you apply carb heat

Answer 5

slowly and gently

Question 6

how often should you use carb heat in cruise

Answer 6

every 5min

Question 7

what do you do if air filter is blocked

Answer 7

use carb heat so the non filtered hot air will provided air to the engine instead

Question 8

should you use carb heat at -10C? why?

Answer 8

ice crystals may pass throught induction systeme harmlessly, using carb heat will raise temp and melt ice crystals and the moistured air will reach icing temps and might cause carburetor icing

Question 9

what is the ideal mixture?

Answer 9

15 air + 1 fuel

Question 10

richest fuel air mixture

Answer 10

9 air 1 fuel

Question 11

best power fuel air mixture

Answer 11

14 air 1 fuel

Question 12

chemically correct

Answer 12

15 air 1 fuel

Question 13

lowest fuel consumption

Answer 13

18 air 1 fuel

Question 14

how much should you ajdust rmp and looking for lean rpm and peak rpm

Answer 14

25 to 50rpm