Test on Aircraft Communication and Navigation Systems
Aircraft Communication and Navigation Systems Explained
Test: Aircraft Communication and Navigation Systems, Aircraft Radar Safety
20 questions
Question 1: The Emergency Locator Transmitter operates on a frequency of 125.1 megahertz.
A. Ano
B. Ne
Explanation: The Emergency Locator Transmitter operates on 121.5 megahertz.
Question 2: DME equipment operates in the UHF band.
A. Ano
B. Ne
Explanation: DME equipment operates in the UHF band.
Question 3: According to the study materials, what is the purpose of an intercom system in an aircraft?
A. To aid in communication solely between the flight crew.
B. To provide long-range communication from the aircraft.
C. To assist with communication between the flight crew, or between the flight crew and the cabin crew.
D. To operate the Emergency Locator Transmitter on 121.5 megahertz.
Explanation: The study materials state that the purpose of an intercom system is 'To aid in communication between the flight crew, or between the flight crew and the cabin crew.' Option 2 encompasses both aspects mentioned in the study material, making it the most accurate answer. Option 0 is partially correct but not complete as it misses the cabin crew aspect. Options 1 and 3 describe other aircraft systems or functions.
Question 4: What is the preferred location for a DME antenna on an aircraft?
A. On top of the aircraft, along the center line of the fuselage.
B. Along the center line of the belly of the aircraft as far from any other antenna as is practical.
C. In the tail of the aircraft or as far aft as possible.
D. On the horizontal stabilizer to avoid interference.
Explanation: The study materials state that the preferred location for a DME antenna is along the center line of the belly of the aircraft as far from any other antenna as is practical.
Question 5: Operating aircraft radar is safe when buildings are within 100 yards of the antenna sweep, as long as no people are present.
A. Ano
B. Ne
Explanation: Aircraft radar should never be operated when there are people or buildings within 100 yards of the antenna sweep, because reflected pulses can destroy receiver circuitry.