Quiz
Limitations DHC-6-400
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Questions in this quiz (52)
1The minimum control speed in air (VMCA), flaps 10, is [blank_start]64[blank_end] KIAS, while the minimum control speed on ground (VMCG), flaps 10, is [blank_start]50[blank_end] KIAS.
- A64
- B50
2The best angle of climb speed (VX), flaps 0, is [blank_start]87[blank_end] KIAS.
The best rate of climb speed (VY), flaps 0, is [blank_start]100[blank_end] KIAS.
The best single-engine rate of climb speed (VYSE), flaps 10, is [blank_start]80[blank_end] KIAS.- A87
- B100
- C80
3The maximum flaps extended speed (VFE) for flaps 10 is [blank_start]103[blank_end] KIAS, whereas for greater than flaps 10, it is [blank_start]93[blank_end] KIAS.
- A103
- B93
4State the maximum operating speed (VMO) for the following altitudes:
Sea level to 6,700 feet: [blank_start]166[blank_end] KIAS
10,000 feet: [blank_start]156[blank_end] KIAS
15,000 feet: [blank_start]141[blank_end] KIAS
20,000 feet: [blank_start]126[blank_end] KIAS
25,000 feet: [blank_start]112[blank_end] KIAS- A166
- B156
- C141
- D126
- E112
5The maneuvering speed (VA) between sea level and 18,000 feet is [blank_start]132[blank_end] KIAS and the gust penetration speed (VB) between sea level and 18,000 feet is [blank_start]132[blank_end] KIAS.
- A132
- B132
6On the airspeed indicator, there is a red horizontal line. This represents the [blank_start]minimum control speed in air[blank_end].
On the airspeed indicator, there is also a blue horizontal line. This represents the [blank_start]best rate of climb speed, single engine[blank_end].- Aminimum control speed in air
- Bminimum control speed on ground
- Cmaximum operating speed
- Dmaximum flaps extended speed
- Ebest rate of climb speed, single engine
- Fbest rate of climb speed, two engines
- Gminimum control speed in air
- Hminimum control speed on ground
7On the airspeed indicator, the barber pole represents the [blank_start]maximum operating speed[blank_end]. On the other hand, the bottom of the red vertical tape represents the [blank_start]maximum flaps extended speed[blank_end].
- Amaximum operating speed
- Bstall speed in the clean configuration
- Cstall speed in the landing configuration
- Dmaximum flaps extended speed
- Emaximum flaps extended speed
- Fminimum flaps extended speed
- Gstall speed in the landing configuration
- Hstall speed in the clean configuration
8On the airspeed indicator, the top of the thermometer tape represents the [blank_start]stall speed in the landing configuration[blank_end].
- Astall speed in the landing configuration
- Bstall speed in the clean configuration
- Clanding reference speed
- Dapproach speed
9Select the correct limits for the following table.
- A45
- B48.5
- C50
- D68.4
- E52
- F740
- G765
- H790
- I795
- J1090
- K685
- L740
- M765
- N790
- O1090
10Select the correct limits for the following table.
- A660
- B685
- C740
- D765
- E101.6
- F102.6
- G91
- H110
- I91
- J96
- K110
- L101.6
11Select the correct limits for the following table.
- A740
- B765
- C790
- D685
- E740
- F765
- G790
- H1090
- I90 to 92
- J94 to 96
- K98 to 100
12Select the correct limits for the following table.
- A40 MIN
- B-40 to 99
- C0 to 99
- D10 to 99
- E85 to 105
- F40 MIN
- G-40 to 99
- H-40 MIN
- I0 to 40
- J-40 MIN
- K40 MIN
- L0 to 99
- M10 to 99
- N-40 to 99
- O0 to 99
- P10 to 99
- Q40 to 99
- R-40 MIN
- S40 MIN
- T0 to 99
- U10 to 99
13Unintentional, momentary pilot errors that result in torque settings between 50 and 61 PSI torque during two engine operations are harmful to the engine.
- ATrue
- BFalse
14At idle, if the T5 temperature approaches the 685 degrees Celsius idle limit, either [blank_start]increase[blank_end] NG or [blank_start]reduce[blank_end] engine loads to stay below the idle temperature limit.
- Aincrease
- Bdecrease
- Creduce
- Dincrease
15How long is reverse power operation limited to?
- A2 seconds
- B25 seconds
- C60 seconds
- D120 seconds
16Select all those that apply when the following conditions are met:
Ground running of engines (except during maneuvering or taxiing) in ambient temperatures of 32 degrees Celsius and above.- AAircraft must be headed into wind
- BOperation in other than forward thrust must be kept to a minimum
- COperation in other than forward thrust must not exceed one minute
- DOperation in other than forward thrust must not exceed two minutes
- EAircraft must be headed perpendicular to wind
- FOperation of the power levers aft of the idle stop is forbidden
17In-flight operation of the power lever aft of idle is prohibited.
- ATrue
- BFalse
18Starting temperatures above [blank_start]850[blank_end] degrees Celsius are undesirable and should be reported and investigated for cause.
- A850
19For engine start, temperatures between 980 and 1090 degrees Celsius are acceptable provided the temperature decreases to below 980 degrees Celsius within [blank_start]2[blank_end] second(s).
- A2
- B1
- C4
- D10
- E25
20Propellers must be set to MAX RPM for every takeoff and every landing.
- ATrue
- BFalse
21Propeller levers must be set to the MAX RPM position no later than [blank_start]500[blank_end] feet above [blank_start]ground level[blank_end] for visual approaches.
Propeller levers must be set to the MAX RPM position no later than [blank_start]500[blank_end] feet above [blank_start]minimum descent altitude (MDA)[blank_end] for instrument approaches.- A500
- B1000
- C200
- Dground level
- Esea level
- Fminimum descent altitude (MDA)
- G500
- H1000
- I2000
- J200
- Kminimum descent altitude (MDA)
- Lground level
- Msea level
- Nairfield elevation
22In an emergency when jet fuel is not available, any grade of AVGAS may be used, but only at specific mixture ratios.
- ATrue
- BFalse
23What is the maximum fuel temperature and maximum ambient temperature for takeoff when using AVGAS?
- A20 degrees Celsius
- B25 degrees Celsius
- C30 degrees Celsius
- D35 degrees Celsius
24What is the maximum operating altitude when using AVGAS?
- A8,000 feet
- B10,000 feet
- C12,000 feet
- D15,000 feet
25At least one boost pump per tank must be serviceable at all times when AVGAS is being used.
- ATrue
- BFalse
26Text sometimes appears outboard of the torque indicators on the primary flight display during various phases of flight.
Select the correct indication for each phase by completing the table.
- AT/O (white)
- BT/O (green)
- CNo indication is shown
- DT/O (white)
- ET/O (green)
- FNo indication is shown
- GCLMB (white)
- HS/E (white)
- IS/E (green)
- JT/O (white)
- KIDL (white)
- LIDL (green)
- MNo indication is shown
- NSTART (white)
- OSTART (green)
- PIDL (white)
- QIDL (green)
- ROFF (white)
- SOFF (green)
- TIDL (white)
27If a blue colour appears on the engine parameters NP display, what is this telling the pilot?
- AThe propeller operation is locked in beta range (abnormal)
- BThe propeller operation is in beta range (advisory)
- CThe NP value is out of the normal range for this phase of flight (abnormal)
- DThe prop lever is not in the minimum governing position
28When a generator is capacity-limited, the maximum load reading is
- A50 amps
- B100 amps
- C160 amps
- D200 amps
29What is suggested to prolong generator life?
- AEngine RPM below 59% NG should be avoided, especially at high OAT (>15 degrees Celsius) and high current generator loads (>100 Amps).
- BEngine RPM above 55% NG should be avoided, especially at high OAT (>32 degrees Celsius) and high current generator loads (>100 Amps).
- CEngine RPM below 59% NG should be avoided, especially at high OAT (>15 degrees Celsius) and low current generator loads (<100 Amps).
- DEngine RPM below 55% NG should be avoided, especially at high OAT (>30 degrees Celsius) and high current generator loads (>200 Amps).
30If extended engine operation at low RPM is necessary under high current loads, what is suggested be done? Select ALL possible suggested actions.
- AShed unnecessary electrical loads
- BSwitch off one generator
- CSwitch off both generators
- DFeather one propeller
- EFeather both propellers
- FSet power levers to idle
31What is meant by cross-generator starting?
- AStarting one engine while the generator of the other running engine is online and producing power.
- BStarting an engine while its generator is online.
- CStarting one engine while the generators of both engines are online.
- DStarting one engine while the generator of the other running engine is offline.
32Cross generator starting is forbidden under all circumstances.
- ATrue
- BFalse
33What action must be taken following a cross generator start?
- AThe cross generator start must be recorded in the aircraft logs.
- BNo action needs to be taken.
- CSwitch off the generator of the engine that was initially running, and then switch it back on after 5 seconds.
- DReduce the power on the engine that was initially running.
34The starter duty cycle limitations are:
[blank_start]25[blank_end] second(s) ON, [blank_start]1[blank_end] minute(s) OFF, then
[blank_start]25[blank_end] second(s) ON, [blank_start]1[blank_end] minute(s) OFF, then
[blank_start]25[blank_end] second(s) ON, followed by a [blank_start]30[blank_end] minute(s) cooling period.- A25
- B10
- C15
- D30
- E1
- F10
- G25
- H30
- I25
- J10
- K15
- L30
- M1
- N2
- O25
- P30
- Q25
- R10
- S50
- T30
- U30
- V1
- W5
- X25
35What is the maximum operating altitude of the DHC-6-400 according to the POH?
- A10,000 feet
- B15,000 feet
- C20,000 feet
- D25,000 feet
- E27,500 feet
36Fill in the blanks using numbers only; do not use spaces or commas.
The maximum takeoff weight is [blank_start]12500[blank_end] lbs.
The maximum ramp and taxi weight is [blank_start]12600[blank_end] lbs.
The maximum landing weight is [blank_start]12300[blank_end] lbs.
The maximum zero fuel weight is [blank_start]12300[blank_end] lbs.- A12500
- B12600
- C12300
- D12300
37Fill in the blanks using numbers only; do not use spaces or commas.
The maximum permissible baggage compartment load for the forward baggage compartment is [blank_start]285[blank_end] lbs.
The maximum permissible baggage compartment load for the aft baggage compartment is [blank_start]500[blank_end] lbs, which includes the [blank_start]150[blank_end] lbs limit on the extension shelf.- A285
- B500
- C150
38The maximum permissible baggage compartment load for the lower portion of the aft baggage compartment (i.e., the area NOT on the shelf) is 350 lbs.
- ATrue
- BFalse
39Fill in the blanks using numbers only; do not use spaces or commas.
The maximum permissible floor loading value for the forward and rear baggage compartments is [blank_start]100[blank_end] pounds per square foot, whereas for the cabin it is [blank_start]200[blank_end] pounds per square foot.- A100
- B200
40Select all that apply.
The approved flap takeoff setting(s) is/are:- A0
- B10
- C20
- D37
41Select all that apply.
For normal operations, the approved flap landing setting(s) is/are:- A0
- B10
- C20
- D37
42Choose the correct answer.
At a gross weight of 12,500 lbs and flaps RETRACTED, the flight load factors to which the DHC-6 airplane has been designed are (normal category):- A+3.17g to -1.5g
- B+2.0g to -1.5g
- C+1.5g to -3.17g
- D+1.5g to -2.0g
43Choose the correct answer.
At a gross weight of 12,500 lbs and flaps EXTENDED, the flight load factors to which the DHC-6 airplane has been designed are (normal category):- A+2.0g to -1.5g
- B+3.17g to -1.5g
- C+1.5g to -3.17g
- D+3.17g to -2.0g
44Select ALL that apply.
The Twin Otter is certified in the Normal Category.
Accordingly, the following are NOT approved:- ASpins
- BLazy eights
- CChandelles
- DTurns with an angle of bank exceeding 45 degrees
- ETurns with an angle of bank exceeding 60 degrees
- FStalls
45Take-off is always prohibited with any red or amber CAS message present.
- ATrue
- BFalse
46Engine start is prohibited if the Hydraulic Power Fail CAS message is present.
- ATrue
- BFalse
47Regarding TCAS I, The flight crew must NOT use a TA on the PFD traffic display to initiate evasive maneuvering as it lacks the resolution necessary for use in evasive maneuvering.
- ATrue
- BFalse
48Pilots are authorized to deviate from an ATC clearance when responding to terrain or obstacle alerts generated by the TAWS.
- ATrue
- BFalse
49It is acceptable to navigate based on TAWS terrain data on the Primary Flight Displays.
- ATrue
- BFalse
50Select all that apply.
The following limitations apply when the weather radar system is operated while the
aircraft is on the ground:- ADo not operate the weather radar system during aircraft refuelling.
- BDo not operate the weather radar system when any refuelling operations are being carried out within 100 feet (30 m).
- CDo not operate the weather radar system when personnel are standing forward of the wings within 30 feet (10 m) of the aircraft.
- DDo not operate the weather radar system when personnel are standing behind the wings within 30 feet (10 m) of the aircraft.
51Dispatch of the aircraft with any equipment inoperative is only permitted in accordance with:
- Athe guidance provided in an operator-specific Minimum Equipment List (MEL) that is derived from the MMEL (Master Minimum Equipment List).
- Bthe guidance provided in the MMEL (Master Minimum Equipment List) that is derived from an operator-specific Minimum Equipment List (MEL).
- Cthe guidance provided in an operator-specific Minimum Equipment List (MEL) or the MMEL (Master Minimum Equipment List).
52A Minimum Equipment List (MEL) may be more restrictive than the Master Minimum Equipment List (MMEL).
- ATrue
- BFalse
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- It is vital to know the limitations of the aircraft that you are flying. How well do you know your Twin Otter limitations? Take the quiz to find out.
- Author
- Rieul Gendron
- Language
- English
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