SIFT SIFT Aviation Weather and Navigation Questions and Answers

Question 1

Which cloud type is considered most hazardous to Army aviation due to severe turbulence, icing, and lightning?

Accepted Answer

Cumulonimbus

Answer

Cirrus

Answer

Stratus

Answer

Altocumulus

Question 2

What does the aviation acronym VFR stand for?

Accepted Answer

Visual Flight Rules

Answer

Vertical Flight Regulations

Answer

Variable Frequency Routing

Answer

Vectored Flight Reporting

Question 3

Which atmospheric layer contains virtually all weather phenomena that affect Army aviation operations?

Accepted Answer

Troposphere

Answer

Stratosphere

Answer

Mesosphere

Answer

Thermosphere

Question 4

Wind shear is most dangerous for helicopter operations during which phase of flight?

Accepted Answer

Takeoff and landing

Answer

Cruise at altitude

Answer

Hovering in ground effect

Answer

Autorotation descent

Question 5

What is the standard temperature lapse rate in the troposphere used for pressure altitude calculations?

Accepted Answer

2°C per 1,000 feet

Answer

1°C per 1,000 feet

Answer

3°C per 1,000 feet

Answer

5°C per 1,000 feet

Question 6

A rapidly falling barometric pressure reading most reliably indicates:

Accepted Answer

An approaching storm system with deteriorating conditions

Answer

Clear, stable weather is settling in

Answer

High-pressure ridges building overhead

Answer

Fog dissipation at dawn