Limitations DHC-6-400

Question 1 of 52

1

Fill the blank spaces to complete the text.

The minimum control speed in air (VMCA), flaps 10, is KIAS, while the minimum control speed on ground (VMCG), flaps 10, is KIAS.

Explanation

Question 2 of 52

1

Fill the blank spaces to complete the text.

The best angle of climb speed (VX), flaps 0, is KIAS.
The best rate of climb speed (VY), flaps 0, is KIAS.
The best single-engine rate of climb speed (VYSE), flaps 10, is KIAS.

Explanation

Question 3 of 52

1

Fill the blank spaces to complete the text.

The maximum flaps extended speed (VFE) for flaps 10 is KIAS, whereas for greater than flaps 10, it is KIAS.

Explanation

Question 4 of 52

1

Fill the blank spaces to complete the text.

State the maximum operating speed (VMO) for the following altitudes:
Sea level to 6,700 feet: KIAS
10,000 feet: KIAS
15,000 feet: KIAS
20,000 feet: KIAS
25,000 feet: KIAS

Explanation

Question 5 of 52

1

Fill the blank spaces to complete the text.

The maneuvering speed (VA) between sea level and 18,000 feet is KIAS and the gust penetration speed (VB) between sea level and 18,000 feet is KIAS.

Explanation

Question 6 of 52

1

Select from the dropdown lists to complete the text.

On the airspeed indicator, there is a red horizontal line. This represents the ( minimum control speed in air, minimum control speed on ground, maximum operating speed, maximum flaps extended speed ).

On the airspeed indicator, there is also a blue horizontal line. This represents the ( best rate of climb speed, single engine, best rate of climb speed, two engines, minimum control speed in air, minimum control speed on ground ).

Explanation

Question 7 of 52

1

Select from the dropdown lists to complete the text.

On the airspeed indicator, the barber pole represents the ( maximum operating speed, stall speed in the clean configuration, stall speed in the landing configuration, maximum flaps extended speed ). On the other hand, the bottom of the red vertical tape represents the ( maximum flaps extended speed, minimum flaps extended speed, stall speed in the landing configuration, stall speed in the clean configuration ).

Explanation

Question 8 of 52

1

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On the airspeed indicator, the top of the thermometer tape represents the ( stall speed in the landing configuration, stall speed in the clean configuration, landing reference speed, approach speed ).

Explanation

Question 9 of 52

1

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 10 of 52

1

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 11 of 52

1

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 12 of 52

1

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 13 of 52

1

Unintentional, momentary pilot errors that result in torque settings between 50 and 61 PSI torque during two engine operations are harmful to the engine.

Select one of the following:

True
False

Explanation

Question 14 of 52

1

Select from the dropdown lists to complete the text.

At idle, if the T5 temperature approaches the 685 degrees Celsius idle limit, either ( increase, decrease ) NG or ( reduce, increase ) engine loads to stay below the idle temperature limit.

Explanation

Question 15 of 52

1

How long is reverse power operation limited to?

Select one of the following:

2 seconds
25 seconds
60 seconds
120 seconds

Explanation

Question 16 of 52

1

Select 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.

Select one or more of the following:

Aircraft must be headed into wind
Operation in other than forward thrust must be kept to a minimum
Operation in other than forward thrust must not exceed one minute
Operation in other than forward thrust must not exceed two minutes
Aircraft must be headed perpendicular to wind
Operation of the power levers aft of the idle stop is forbidden

Explanation

Question 17 of 52

1

In-flight operation of the power lever aft of idle is prohibited.

Select one of the following:

True
False

Explanation

Question 18 of 52

1

Fill the blank space to complete the text.

Starting temperatures above degrees Celsius are undesirable and should be reported and investigated for cause.

Explanation

Question 19 of 52

1

Select from the dropdown list to complete the text.

For engine start, temperatures between 980 and 1090 degrees Celsius are acceptable provided the temperature decreases to below 980 degrees Celsius within ( 2, 1, 4, 10, 25 ) second(s).

Explanation

Question 20 of 52

1

Propellers must be set to MAX RPM for every takeoff and every landing.

Select one of the following:

True
False

Explanation

Question 21 of 52

1

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Propeller levers must be set to the MAX RPM position no later than ( 500, 1000, 200 ) feet above ( ground level, sea level, minimum descent altitude (MDA) ) for visual approaches.

Propeller levers must be set to the MAX RPM position no later than ( 500, 1000, 2000, 200 ) feet above ( minimum descent altitude (MDA), ground level, sea level, airfield elevation ) for instrument approaches.

Explanation

Question 22 of 52

1

In an emergency when jet fuel is not available, any grade of AVGAS may be used, but only at specific mixture ratios.

Select one of the following:

True
False

Explanation

Question 23 of 52

1

What is the maximum fuel temperature and maximum ambient temperature for takeoff when using AVGAS?

Select one of the following:

20 degrees Celsius
25 degrees Celsius
30 degrees Celsius
35 degrees Celsius

Explanation

Question 24 of 52

1

What is the maximum operating altitude when using AVGAS?

Select one of the following:

8,000 feet
10,000 feet
12,000 feet
15,000 feet

Explanation

Question 25 of 52

1

At least one boost pump per tank must be serviceable at all times when AVGAS is being used.

Select one of the following:

True
False

Explanation

Question 26 of 52

1

Click on each orange point and select the correct answer.

Text 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.

Explanation

Question 27 of 52

1

If a blue colour appears on the engine parameters NP display, what is this telling the pilot?

Select one of the following:

The propeller operation is locked in beta range (abnormal)
The propeller operation is in beta range (advisory)
The NP value is out of the normal range for this phase of flight (abnormal)
The prop lever is not in the minimum governing position

Explanation

Question 28 of 52

1

When a generator is capacity-limited, the maximum load reading is

Select one of the following:

50 amps
100 amps
160 amps
200 amps

Explanation

Question 29 of 52

1

What is suggested to prolong generator life?

Select one of the following:

Engine RPM below 59% NG should be avoided, especially at high OAT (>15 degrees Celsius) and high current generator loads (>100 Amps).
Engine RPM above 55% NG should be avoided, especially at high OAT (>32 degrees Celsius) and high current generator loads (>100 Amps).
Engine RPM below 59% NG should be avoided, especially at high OAT (>15 degrees Celsius) and low current generator loads (<100 Amps).
Engine RPM below 55% NG should be avoided, especially at high OAT (>30 degrees Celsius) and high current generator loads (>200 Amps).

Explanation

Question 30 of 52

1

If extended engine operation at low RPM is necessary under high current loads, what is suggested be done? Select ALL possible suggested actions.

Select one or more of the following:

Shed unnecessary electrical loads
Switch off one generator
Switch off both generators
Feather one propeller
Feather both propellers
Set power levers to idle

Explanation

Question 31 of 52

1

What is meant by cross-generator starting?

Select one of the following:

Starting one engine while the generator of the other running engine is online and producing power.
Starting an engine while its generator is online.
Starting one engine while the generators of both engines are online.
Starting one engine while the generator of the other running engine is offline.

Explanation

Question 32 of 52

1

Cross generator starting is forbidden under all circumstances.

Select one of the following:

True
False

Explanation

Question 33 of 52

1

What action must be taken following a cross generator start?

Select one of the following:

The cross generator start must be recorded in the aircraft logs.
No action needs to be taken.
Switch off the generator of the engine that was initially running, and then switch it back on after 5 seconds.
Reduce the power on the engine that was initially running.

Explanation

Question 34 of 52

1

Select from the dropdown lists to complete the text.

The starter duty cycle limitations are:
( 25, 10, 15, 30 ) second(s) ON, ( 1, 10, 25, 30 ) minute(s) OFF, then
( 25, 10, 15, 30 ) second(s) ON, ( 1, 2, 25, 30 ) minute(s) OFF, then
( 25, 10, 50, 30 ) second(s) ON, followed by a ( 30, 1, 5, 25 ) minute(s) cooling period.

Explanation

Question 35 of 52

1

What is the maximum operating altitude of the DHC-6-400 according to the POH?

Select one of the following:

10,000 feet
15,000 feet
20,000 feet
25,000 feet
27,500 feet

Explanation

Question 36 of 52

1

Fill the blank spaces to complete the text.

Fill in the blanks using numbers only; do not use spaces or commas.
The maximum takeoff weight is lbs.
The maximum ramp and taxi weight is lbs.
The maximum landing weight is lbs.
The maximum zero fuel weight is lbs.

Explanation

Question 37 of 52

1

Fill the blank spaces to complete the text.

Fill in the blanks using numbers only; do not use spaces or commas.
The maximum permissible baggage compartment load for the forward baggage compartment is lbs.
The maximum permissible baggage compartment load for the aft baggage compartment is lbs, which includes the lbs limit on the extension shelf.

Explanation

Question 38 of 52

1

The 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.

Select one of the following:

True
False

Explanation

Question 39 of 52

1

Fill the blank spaces to complete the text.

Fill 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 pounds per square foot, whereas for the cabin it is pounds per square foot.

Explanation

Question 40 of 52

1

Select all that apply.
The approved flap takeoff setting(s) is/are:

Select one or more of the following:

0
10
20
37

Explanation

Question 41 of 52

1

Select all that apply.
For normal operations, the approved flap landing setting(s) is/are:

Select one or more of the following:

0
10
20
37

Explanation

Question 42 of 52

1

Choose 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):

Select one of the following:

+3.17g to -1.5g
+2.0g to -1.5g
+1.5g to -3.17g
+1.5g to -2.0g

Explanation

Question 43 of 52

1

Choose 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):

Select one of the following:

+2.0g to -1.5g
+3.17g to -1.5g
+1.5g to -3.17g
+3.17g to -2.0g

Explanation

Question 44 of 52

1

Select ALL that apply.
The Twin Otter is certified in the Normal Category.
Accordingly, the following are NOT approved:

Select one or more of the following:

Spins
Lazy eights
Chandelles
Turns with an angle of bank exceeding 45 degrees
Turns with an angle of bank exceeding 60 degrees
Stalls

Explanation

Question 45 of 52

1

Take-off is always prohibited with any red or amber CAS message present.

Select one of the following:

True
False

Explanation

Question 46 of 52

1

Engine start is prohibited if the Hydraulic Power Fail CAS message is present.

Select one of the following:

True
False

Explanation

Question 47 of 52

1

Regarding 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.

Select one of the following:

True
False

Explanation

Question 48 of 52

1

Pilots are authorized to deviate from an ATC clearance when responding to terrain or obstacle alerts generated by the TAWS.

Select one of the following:

True
False

Explanation

Question 49 of 52

1

It is acceptable to navigate based on TAWS terrain data on the Primary Flight Displays.

Select one of the following:

True
False

Explanation

Question 50 of 52

1

Select all that apply.
The following limitations apply when the weather radar system is operated while the
aircraft is on the ground:

Select one or more of the following:

Do not operate the weather radar system during aircraft refuelling.
Do not operate the weather radar system when any refuelling operations are being carried out within 100 feet (30 m).
Do not operate the weather radar system when personnel are standing forward of the wings within 30 feet (10 m) of the aircraft.
Do not operate the weather radar system when personnel are standing behind the wings within 30 feet (10 m) of the aircraft.

Explanation

Question 51 of 52

1

Dispatch of the aircraft with any equipment inoperative is only permitted in accordance with:

Select one of the following:

the guidance provided in an operator-specific Minimum Equipment List (MEL) that is derived from the MMEL (Master Minimum Equipment List).
the guidance provided in the MMEL (Master Minimum Equipment List) that is derived from an operator-specific Minimum Equipment List (MEL).
the guidance provided in an operator-specific Minimum Equipment List (MEL) or the MMEL (Master Minimum Equipment List).

Explanation

Question 52 of 52

1

A Minimum Equipment List (MEL) may be more restrictive than the Master Minimum Equipment List (MMEL).

Select one of the following:

True
False

	Created by Rieul Gendron almost 9 years ago

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.

Limitations DHC-6-400

Question 1 of 52

Fill the blank spaces to complete the text.

The minimum control speed in air (VMCA), flaps 10, is KIAS, while the minimum control speed on ground (VMCG), flaps 10, is KIAS.

Explanation

Question 2 of 52

Fill the blank spaces to complete the text.

The best angle of climb speed (VX), flaps 0, is KIAS. The best rate of climb speed (VY), flaps 0, is KIAS. The best single-engine rate of climb speed (VYSE), flaps 10, is KIAS.

Explanation

Question 3 of 52

Fill the blank spaces to complete the text.

The maximum flaps extended speed (VFE) for flaps 10 is KIAS, whereas for greater than flaps 10, it is KIAS.

Explanation

Question 4 of 52

Fill the blank spaces to complete the text.

State the maximum operating speed (VMO) for the following altitudes: Sea level to 6,700 feet: KIAS 10,000 feet: KIAS 15,000 feet: KIAS 20,000 feet: KIAS 25,000 feet: KIAS

Explanation

Question 5 of 52

Fill the blank spaces to complete the text.

The maneuvering speed (VA) between sea level and 18,000 feet is KIAS and the gust penetration speed (VB) between sea level and 18,000 feet is KIAS.

Explanation

Question 6 of 52

Select from the dropdown lists to complete the text.

Explanation

Question 7 of 52

Select from the dropdown lists to complete the text.

Explanation

Question 8 of 52

Select from the dropdown list to complete the text.

Explanation

Question 9 of 52

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 10 of 52

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 11 of 52

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 12 of 52

Click on each orange point and select the correct answer.

Select the correct limits for the following table.

Explanation

Question 13 of 52

Unintentional, momentary pilot errors that result in torque settings between 50 and 61 PSI torque during two engine operations are harmful to the engine.

Select one of the following:

Explanation

Question 14 of 52

Select from the dropdown lists to complete the text.

At idle, if the T5 temperature approaches the 685 degrees Celsius idle limit, either increase decrease( increase, decrease ) NG or reduce increase( reduce, increase ) engine loads to stay below the idle temperature limit.

Explanation

Question 15 of 52

How long is reverse power operation limited to?

Select one of the following:

Explanation

Question 16 of 52

Select 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.

Select one or more of the following:

Explanation

Question 17 of 52

In-flight operation of the power lever aft of idle is prohibited.

Select one of the following:

Explanation

Question 18 of 52

Fill the blank space to complete the text.

Starting temperatures above degrees Celsius are undesirable and should be reported and investigated for cause.

Explanation

Question 19 of 52

Select from the dropdown list to complete the text.

For engine start, temperatures between 980 and 1090 degrees Celsius are acceptable provided the temperature decreases to below 980 degrees Celsius within 2 1 4 10 25( 2, 1, 4, 10, 25 ) second(s).

Explanation

Question 20 of 52

Propellers must be set to MAX RPM for every takeoff and every landing.

Select one of the following:

Explanation

Question 21 of 52

The best angle of climb speed (VX), flaps 0, is KIAS.
The best rate of climb speed (VY), flaps 0, is KIAS.
The best single-engine rate of climb speed (VYSE), flaps 10, is KIAS.

State the maximum operating speed (VMO) for the following altitudes:
Sea level to 6,700 feet: KIAS
10,000 feet: KIAS
15,000 feet: KIAS
20,000 feet: KIAS
25,000 feet: KIAS

At idle, if the T5 temperature approaches the 685 degrees Celsius idle limit, either ( increase, decrease ) NG or ( reduce, increase ) engine loads to stay below the idle temperature limit.

Select 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.

For engine start, temperatures between 980 and 1090 degrees Celsius are acceptable provided the temperature decreases to below 980 degrees Celsius within ( 2, 1, 4, 10, 25 ) second(s).

Text 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.

Fill in the blanks using numbers only; do not use spaces or commas.
The maximum takeoff weight is lbs.
The maximum ramp and taxi weight is lbs.
The maximum landing weight is lbs.
The maximum zero fuel weight is lbs.