Quiz: DHC-6-300 Engine, Propellers & Electrical Limitations

Complete all STARTING OPERATING LIMITS with numbers only. Do not use spaces or commas. You can use decimal points where necessary.

Complete all IDLE OPERATING LIMITS with numbers only. Do not use spaces or commas. You can use decimal points where necessary.

Complete all TAKEOFF & MAX CONTINUOUS OPERATING LIMITS with numbers only. Do not use spaces or commas. You can use decimal points where necessary.

Complete all MAX CLIMB/MAX CRUISE OPERATING LIMITS with numbers only. Do not use spaces or commas. You can use decimal points where necessary.

Complete all ACCELERATION OPERATING LIMITS with numbers only. Do not use spaces or commas. You can use decimal points where necessary.

Complete all MAX REVERSE OPERATING LIMITS with numbers only. Do not use spaces or commas. You can use decimal points where necessary.

Unintentional, momentary pilot errors that result in torque settings between 50 and 53.3 PSI torque during two engine operations are harmful to the engine.

At idle, if the T5 temperature approaches the 660 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.

How long is reverse power operation limited to?

Select all those that apply during the following situation. Ground running of engines (except during manoeuvring or taxiing) in ambient temperatures of 32 degrees Celsius and above.

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

Starting temperatures above [blank_start]850[blank_end] degrees Celsius are undesirable and should be reported and investigated for cause.

For 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).

During cold weather operations, if the pilot wants to be assured that the temperature of fuel leaving the oil-to-fuel heat exchanger is above freezing, a minimum oil temperature of [blank_start]55[blank_end] degrees Celsius is recommended.

Oil pressures between 40 and 80 PSI (caution range) are acceptable during ground operations.

Oil pressures between 40 and 80 PSI (caution range) are acceptable in flight.

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

Enter numbers only in the blanks below. Propeller levers must be set to the MAX RPM (96% NP) position no later than [blank_start]500[blank_end] feet above ground level (for visual approaches) or [blank_start]500[blank_end] feet above decision height or minimum descent altitude (for instrument approaches). This is essential to ensure that the pilot has full control over propeller operation via the power lever during the final phase of the approach, and also essential to ensure that full power will be immediately available if needed for a baulked landing, go-around, or low-level windshear recovery.

In the event of failure of the [blank_start]primary propeller[blank_end] governor to govern at [blank_start]96[blank_end]%, it is acceptable to continue to use the engine as long as the [blank_start]propeller overspeed[blank_end] governor maintains the propeller speed at [blank_start]101.5[blank_end]% or less. A landing should be made as soon as practical, and the problem must be corrected before further flight.

What is meant by cross-generator starting?

Cross generator starting is forbidden under all circumstances.

Fill in the blanks with numbers only. The 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.

While on the ground, the loadmeter reading for each generator should be great than [blank_start]0.5[blank_end] for the purpose of [blank_start]keeping the T5 below the idle limit[blank_end].

While on the ground with outside air temperatures exceeding [blank_start]7[blank_end] degrees Celsius, the loadmeter reading for each generator should be [blank_start]0.8[blank_end] maximum. This is for the purpose of [blank_start]generator cooling[blank_end].

While on the ground with outside air temperatures of [blank_start]7[blank_end] degrees Celsius or less, the loadmeter reading for each generator should be [blank_start]1.0[blank_end] maximum.

In flight, the loadmeter reading for each generator should be [blank_start]1.0[blank_end] maximum.