ATSC-231 Block 4 Exam Question and answers 100% correct
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Module
ATSC 231
Institution
ATSC 231
ATSC-231 Block 4 Exam Question and answers 100% correct
What is the antidote for inlet icing for piston powered airplanes? - correct answer Either alternate air or carburetor heat
What are the common conditions that produce carburetor icing? - correct answer High humidity and temperature...
ATSC-231 Block 4 Exam Question and
answers 100% correct
What is the antidote for inlet icing for piston powered airplanes? - correct
answer ✔Either alternate air or carburetor heat
What are the common conditions that produce carburetor icing? - correct
answer ✔High humidity and temperatures between 20oF and 80oF
What is the antidote for inlet icing for turbine powered airplanes? - correct
answer ✔Anti-ice
During which phase of flight did the majority of icing accidents occur as
documented in the NTSB statistical analysis of icing accidents for the period
1982-2000? - correct answer ✔Cruise
How many part 91 icing accidents are caused by carburetor/induction icing as
documented by the NTSB during the period 2000 -2011? - correct answer
✔More than half
What type of airplanes are affected by inlet icing? - correct answer ✔All
aircraft
How many Part 91 icing accidents were fatal as documented in the NTSB
statistical analysis of icing accidents for the period 1982-2000. - correct
answer ✔The majority
Icing caused what percentage of Part 91 aircraft accidents as documented
NTSB during the period 2000 -2011? - correct answer ✔9%
,What is the antidote for carburetor icing? - correct answer ✔Carburetor heat
Pilots with the greatest number of flight hours in the make and model of
aircraft had the highest number of icing accidents as documented in the NTSB
statistical analysis of icing accidents for the period 1982-2000 - correct
answer ✔False
Code of Federal Regulations 14 Part 91 - correct answer ✔Not specific
concerning required equipment for icing conditions
Which CFR14 Part 91 regulation requires that each pilot should become
familiar with all available information including weather reports and forecasts?
- correct answer ✔91.103
The rate of ice accumulation in which ice becomes perceptible and the rate of
accumulation slightly greater than rate of sublimation is known as - correct
answer ✔Trace
According to 14CFR Part 91, for which flights does a pilot need to obtain
weather reports and forecasts? - correct answer ✔Flights under IFR and
flights not in the vicinity of an airport
Which Code of Federal Regulations 14 Part deals with the certification of
airplanes for ice protection? - correct answer ✔Part 25
An icing rate of more than 3 inches per hour on unprotected surfaces is
classified as - correct answer ✔Severe
, Code of Federal Regulations 14 Part 135 - correct answer ✔Very specific
concerning the required equipment for operations in icing conditions.
At temperatures below ____ most clouds are made up entirely of ice particles.
- correct answer ✔-20 C
How is the icing rate or accretion affected by liquid water content? - correct
answer ✔Icing rate or accretion increases with higher liquid water content
and decreases with lower liquid water content
What factor does not affect the collection efficiency of water droplets by an
aircraft structure? - correct answer ✔Temperature
What temperature range does mixed ice occur (assuming average liquid water
content)? - correct answer ✔-8 to -15 C
How does the collection efficiency of water droplets on an aircraft structure
change with drop size? - correct answer ✔The collection efficiency is greater
for bigger drop sizes and lesser for smaller drop sizes
What factor does not affect the thermodynamics of freezing of water droplets
on an aircraft structure? - correct answer ✔Geometry of the collecting
surface
Some studies have reported that freezing drizzle aloft forms more that 80
percent of the time by which process? - correct answer ✔Collision-
coalescence
What type of icing is most probable in cumulus clouds? - correct answer
✔Glaze (or clear)
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