Where would you locate freewheeling unit?

It is integral part of each Input module

It is integral part of the XMSN main module

It is integral part of engine accessory gearbox

The intermediate gearbox ___________________

Reduces the drive speed and changes the angle of drive

Only changes the angle of drive

The XMSN low oil pressure switch is located ______________

on the bottom of the main module

The main rotor speed sensor is located ________________

on the bottom of the main module

When are you supposed to use the HOT side of the dipstick to check XMSN oil level?

Within 30 minutes after shutdown

Within 15 minutes after shut-down

Immediately to 2 hours after shutdown

The XMSN oil pressure _________________

may fluctuate when the helicopter is known to be in nose-up attitude

XMSN oil pump operate __________________

in parallel, driven by the XMSN

When the pop-out indicator on the XMSN oil filter is extended ______________

the oil filter must be replaced in order to be oable to re-set the indicator

the oil filter has already been bypassed

the indicator may be re-set once

When the first stage of the XMSN oil filter is bypassed, ______________

second stage still retains some filtering capacity

contaminated oil circulates through the systém

the oil will no longer by cooled

What happens when the XMSN oil is cold (below 71 centigrades)?

Oil is routed away from the XMSN oil cooler by the thermostatic control bypass valve

XMSN oil filter pop-out indicator extends because of increased pressure

Oil is routed through the engine oil to fuel heater to warm up

Is there any XMSN electrical magnetic chip detector with a fuzz burn capability?

Yes, the XMSN main module chip detector has the capability

No, only engine chip detectors do have such a capability

Yes, all XMSN chip detectors do have the fuzz burn capability

Why is the XMSN main module chip detector connected to a 30 sec delay?

To allow for fuzz burn or particles wash-away prior to triggering a caution

To allow all of the rest of XMSN chip detectors to detect fuzz or chips as well

How is the XMSN oil cooling assured for?

The XMSN oil is cooled in a fan and oil cooler assembly external to the XMSN

A free air flowing around the XMSN is enough to cool down the XMSN and oil

The XMSN oil is cooled through liquid-to-liquid oil cooler

What happens when the XMSN oil cooler becomes clogged?

The oil will bypass and will flow uncooled

The oil will bypass and will be cooled in an back-up cooler

The main XMSN oil pressure indicator is ________________

a analogue gauge standalone dial indicator

The main XMSN oil pressure indicator is ________________

a analogue gauge standalone dial indicator

Is the electrical magnetic chip detector fuzz burn capability always active?

No , this feature is de-activated when the oil temperature is above 140 centigrades

Yes, this feature is active anytime the systém receives electrical power

No, this feature is de-activated when oil temperature is below 140 centigrades

How many cautions are available for XMSN chip detection systém?

5 caution lights for 5 chip detectors

1 caution light for all 5 detectors

3 caution lights for LH, RH and center chip detectors

With respect to the XMSN chip detection systém buil-in test (assuming no faults):

All related caution lights will come up immediately after switching on the battery switch, except for the CHIP MAIN MDL SUMP, which comes on after 30 seconds

All related caution lights will come up immediately after switching on the battery switch and will last for 45-70 seconds, including the CHIP MAIN MDL SUMP, which extinguishes after 30 seconds

All related caution lights will come up immediately after switching on the battery switch and will last for 45-70 seconds

Where is the locking portion of the Gust Lock systém located?

At the tail rotor také-off flange on the main XMSN

On the tail rotor shaft, just fwd of the oil cooler fan

The Gust Lock handle is located _______________

In the cockpit on the aft of the central pedestal

In the cabin ceiling, left aft side of the main XMSN

The gust lock is designed to withstand ________________

torque from one engine at idle power setting

only forces acting on main rotor blades in windy conditions

torque from two engines at idle power setting

How does the crew know the gust lock is engaged?

There is a GUST LOCK caution available on the Caution and Advisory Panel

Crew has to visually verify the gust lock is disengaged during the pre-flight inspection

The rotor does not turn upon starting an engine

The gust lock is engaged by _______________

pushing the gust lock handle up

pulling the gust lock handle down

pushing the GUST LOCK switch ON in the overhead panel

Can UH-60 tail rotor drive shafts be interchanged?

Onle the 3 shafts forming Iind section are interchangeable

Yes, any shaft is interchangeable for a shaft from another section

No, every shaft is different and not interchangeable

What are flexible couplings within the tail rotor drive shafting doing?

Maintain alignment and connect shaft segments to each other

Secure drive shafts to the structure

Connect hoses for lubricating oil to drive shaft bearings

UH-60A|Powertrain and rotors

Authored by Jan Kneissl

Professional Development

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

The UH-60 transmission consists of ____________ modules

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Name UH-60 transmission modules.

Main module LH+RH input modules LH+RH accessory modules

Main module Input module Accessory module

Main module LH+RH Input modules Planetary module

MULTIPLE CHOICE QUESTION

1 min • 1 pt

UH-60 transmission can operate with no oil for ____________ at cruise flight

30 minutes

45 minutes

60 minutes

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicate LH input module

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicate LH accessory module

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicate main generator

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicate hydraulic pump

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UH-60A|Powertrain and rotors

The UH-60 transmission consists of ____________ modules

Name UH-60 transmission modules.

UH-60 transmission can operate with no oil for ____________ at cruise flight

Indicate LH input module

Indicate LH accessory module

Indicate main generator

Indicate hydraulic pump

Where would you locate freewheeling unit?

The complete transmission has ________stages of reduction

The intermediate gearbox ___________________

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