Engineering Questions with Answers - Multiple Choice Questions
MCQs on Instrument Shop – Flight Recorders-1
1 - Question
The underwater locator beacon are able to operate to a depth of up to ___________
a) 60,000 meters
b) 60 meters
c) 600 meters
d) 6,000 meters
View Answer
d
Explanation: The underwater locator beacon are able to operate to a depth of up to 6,000 meters, which is approximately 20,000 feet. These beacons are able to operate for up to 30 days.
2 - Question
What is the FAA requirement for the recording duration of a CVR?
a) Maximum 2 hours
b) Minimum 2 hours
c) Maximum 6 hours
d) Minimum 6 hours
View Answer
b
Explanation: The FAA requirement for the recording duration of a CVR, is minimum of 2 hours, as of 2008. The recording is done for a set of 4 channels.
3 - Question
The CVRs using analog wire based recording were replaced by analog ___________ recorders.
a) Optical tape
b) Fiber tape
c) Carbon tape
d) Magnetic tape
View Answer
d
Explanation: The CVRs using analog wire based recording were replaced by analog magnetic tape recorders. In such comparatively modern CVRs, the tape used to automatically reverse at each end and a few units also made use of two reels.
4 - Question
The CVR is typically mounted in the front of the airplane, to maximize the chances of its survival in a crash.
a) False
b) True
View Answer
a
Explanation: False, the CVR is typically mounted in the rear of the airplane to maximize the chances of its survival in a crash. This is in similarity to the mounting of FDR.
5 - Question
Which of the following is not true about solid state recorders?
a) Improve safety
b) Lower maintenance cost than current recorders
c) Require scheduled maintenance
d) Replaces moving components with non-moving components
View Answer
c
Explanation: Solid state recorders have the advantage of not requiring scheduled maintenance and thus make the data easier to retrieve. They provide enhanced safety to the aircraft.
6 - Question
A flight data recorder must be able to withstand an acceleration of 3400g for ___________
a) 6.5 milliseconds
b) 6.5 seconds
c) 65 seconds
d) 65 milliseconds
View Answer
a
Explanation: A flight data recorder must be able to withstand an acceleration of 3400g for 6.5 milliseconds. This requirement is based on the EUROCAE documents.
7 - Question
Which of the following is not a parameter required for CVRs and FDRs?
a) Penetration resistance
b) Static crush
c) Airspeed
d) Fluid immersion
View Answer
c
Explanation: Airspeed is not a parameter required for CVRs and FDRs. However, penetration resistance, static crush and fluid immersion are all parameters required for CVRs and FDRs.
8 - Question
Which of the following defines the minimum specification to be met for all aircraft requiring flight recorders?
a) EURO ED-112
b) EUROCAE ED-112
c) FAA ED-112
d) EUROCARE ED-112
View Answer
b
Explanation: EUROCAE ED-112 defines the minimum specification to be met for all aircraft requiring flight recorders. It may be referred to as Minimum Operational Performance Specification for Crash Protected Airborne Recorder Systems.
9 - Question
The underwater locator beacon is automatically activated in the event of an accident.
a) False
b) True
View Answer
b
Explanation: True, the underwater locator beacon is automatically activated in the event of an accident. This is to help in the recovery of the instrument so as to probe the details of the accident.
10 - Question
The CVRs and FDRs must be able to withstand a crushing distance of ___________
a) 45km
b) 45mm
c) 45m
d) 45cm
View Answer
d
Explanation: The CVRs and FDRs must be able to withstand a crushing distance of 45cm, which is approximately 18 inches. It also should be able to resist an impact velocity of 270 knots.