Volume 3

Question 1

What series of the H-60 is designed to give a smooth airflow induction for cooling major aircraft systems and subsystem component?

Answer 1

Main rotor pylon.

Question 2

The H-60 stabilator vibration absorber is attached to the

Answer 2

right stabilator attachment fitting.

Question 3

The roll vibration absorbers on the H-60 are installed under the

Answer 3

main landing gear drag beam support fairings.

Question 4

Following installation, the H-60 vibration absorber that requires a tuning weight adjustment using the 8500 Balancer/Analyzer and functional check flight is the

Answer 4

cabin.

Question 5

The attachment point for the tail wheel assembly on the H-60 tail landing gear is the

Answer 5

fork assembly.

Question 6

What allows for thermal expansion when the brakes on the H-60 are OFF?

Answer 6

Master cylinder.

Question 7

Before servicing an H-60 landing gear strut with nitrogen, you must ensure there

Answer 7

are no hydraulic fluid leaks.

Question 8

To avoid placing undue stress on the brake assembly when servicing the upper stage of the shock strut, you need to

Answer 8

release the parking brake.

Question 9

Before you apply external electrical power to perform an operation check of an H-60’s brake system you much first check the clearance around the

Answer 9

stabilator.

Question 10

To operationally check the H-60 hydraulic system during ground operations, you use the

Answer 10

backup hydraulic system.

Question 11

When the No. 1 hydraulic system on an H-60 fails, the pressure switch that will send a signal to the logic module is located in the

Answer 11

transfer module.

Question 12

The utility module on the H-60 connects hydraulic pressure to the

Answer 12

second stage of the tail rotor (TR) servo.

Question 13

The H-60 thermal relief valve protects the pilot-assist servo module from thermal expansion of the hydraulic fluid

Answer 13

during storage.

Question 14

When pressed, the H-60 servo jam simulation button causes the

Answer 14

No. 1 or No. 2 PRI SERVO PRESS caution capsule to illuminate.

Question 15

What type of hydraulic leakage is defined as “Fluid leakage is such that hydraulic reservoir levels may be dangerously lowered or depleted during normal operation, or a fire hazard may be created, or the air worthiness of the helicopter may be otherwise affected”?

Answer 15

Excessive.

Question 16

The capacity of the cargo hook on the H-60 is

Answer 16

8,000 pounds.

Question 17

The explosive cartridge (squib) on the H-60 cargo hook is used to

Answer 17

release the load during an emergency.

Question 18

When the explosive squib is fired, the H-60 CARGO HOOK OPEN light will extinguish when

Answer 18

a new squib is installed.

Question 19

The release mode that is not applicable to the H-60 cargo hook is

Answer 19

standard.

Question 20

The hydraulic fluid for the H-60 rescue hoist is cooled by

Answer 20

a continuously running heat exchanger fan.

Question 21

To avoid injury and prevent cable fouling when raising and lowering the rescue hoist cable on an H-60, you should use

Answer 21

leather gloves and maintain tension on the cable.

Question 22

What is the most likely cause of a birdcaged rescue hoist cable on an H-60?

Answer 22

Hook bearing not rotating freely.

Question 23

On the H-60, the valve type used to mix engine or auxiliary power unit bleed-air with the ambient air to obtain the desired temperature is

Answer 23

bleed-air mixing.

Question 24

H-60 fire detector sensors react to

Answer 24

blue and red light.

Question 25

The windshield anti-ice system heating elements on the H-60 will heat the windshield surface to a temperature of

Answer 25

70 - 115 degrees F.

Question 26

When you place an H-60's WINSHIELD ANIT-ICE COPILOT switch to the ON position, you should feel heat on the copilot's windshield in approximately

Answer 26

five minutes.

Question 27

The type of self-sealing valves installed in the H-60 fuel lines to contain the fuel in case of a helicopter crash or malfunction is

Answer 27

breakaway.

Question 28

The H-60 fuel system pump that primes all fuel lines (if prime is lost) and acts as an auxiliary power unit (APU) boost for APU starts and operation is

Answer 28

prime boost.

Question 29

The submerged fuel boost system on the H-60 operates in conjunction with the

Answer 29

engine-driven boost pump.

Question 30

When the H-60 fuel boost pump is OFF, loss of engine fuel line prime is prevented by a

Answer 30

check valve on the submerged fuel boost pump.

Question 31

Flow of fuel in the H-60 fuel system is directed by the fuel

Answer 31

management package.

Question 32

The amount of useable fuel the H-60 internal auxiliary fuel tank will hold if it is single point refueled is

Answer 32

170 gallons.

Question 33

On the H-60, fuel will automatically transfer when

Answer 33

one main fuel tank is at 887 pounds and the other is at less than 1,000 pounds.

Question 34

The centrifugal-type fuel transfer pumps on the H-60 helicopter are powered by

Answer 34

28 volts direct current (VDC).

Question 35

When the H-60 refuel probe is extended, the fuel from the retract side of the probe flows to the

Answer 35

No. 2 main fuel tank.

Question 36

The amount of fuel that should remain in the main tanks of an H-60 after the fuel dump pumps shut off is

Answer 36

172 pounds.

Question 37

The item used as a dielectric in the H-60 fuel quantify indicating system is

Answer 37

fuel.

Question 38

If, on an H-60 fuel system, you want to remove 28 volts direct current (VDC) power, de-energize the fuel warning conditioner relays, and cause the No. 1 and No. 2 FUEL LOW capsules to illuminate, you would press teh FUEL

Answer 38

IND TEST push-button on the miscellaneous switch panel.

Question 39

In comparison to other aircraft systems, troubleshooting the fuel system is more difficult because

Answer 39

the mechanical components are hard to access.

Question 40

The generator kilovolt amperage rating of the auxiliary power unit on the H-60 is

Answer 40

20/30.

Question 41

The type of protection that functions only during ground operation of the No. 1 and No. 2 generator control units on the H-60 is

Answer 41

underfrequency.

Question 42

On the H-60, 115-VAC, B-phase power is connected to the alternating current (AC) essential bus by the

Answer 42

XFR relay.

Question 43

The No. 1 and No. 2 direct current (DC) power converters on the H-60 helicopter receive power from

Answer 43

the alternating current (AC) primary buses.

Question 44

To monitor the voltage capacity of the battery and generator, the H-60 flight engineer console is equipped with a

Answer 44

battery-generator meter.

Question 45

The H-60 direct current (DC) essential bus is connected to the battery bus by the

Answer 45

No. 2 DC essential bus relay.

Question 46

To perform continuity and voltage checks on H-60 electical systems, you would use

Answer 46

a multimeter.

Question 47

What electrical check would you use to determine the amount of resistance (ohms) in a particular wire or component on an H-60?

Answer 47

Continuity.

Question 48

What electrical check would you use to check for a specified amount of alternating current (AC) or direct current (DC) voltage in a particular wire or component on an H-60?

Answer 48

Voltage.

Question 49

Before performing an H-60 electrical continuity check, you must remove all power from the circuit you are checking. Failure to do this could result in damage to the

Answer 49

multimeter.

Question 50

What power source backs up the No. 1 and No. 2 generators on the H-60?

Answer 50

Auxiliary power unit (APU) generator.

Question 51

The pin filter adapters in the H-60 alternating current (AC) electrical system are designed to filter

Answer 51

electromagnetic pulses.

Question 52

The back panel of the H-60 central display unit (CDU) is equipped with

Answer 52

eight fuses.

Question 53

The H-60 instrument that is part of the global positioning system (GPS) is the

Answer 53

horizontal situation indicator (HSI).

Question 54

You externally zero the pointer on the H-60 vertical speed indicator by adjusting the screw in the

Answer 54

lower left corner of the indicator.

Question 55

The indicator range of the barometric altimeters on the H-60 is between

Answer 55

1,000 to 50,000 ft.

Question 56

To check the H-60 central display unit (CDU) dimming feature, you would use

Answer 56

a flashlight.

Question 57

A main rotor (MR) blade on an H-60 is allowed to move about its axis for pitch changes by the

Answer 57

elastomeric bearing.

Question 58

When an H-60 damper and reservoir are fully serviced, the indicator will show full

Answer 58

gold.

Question 59

When the H-60 main rotor (MR) is rotating, centrifugal force will throw the droop stops out and permit increased vertical movement of the blades when the rotation percentage MR speed (Nr) is

Answer 59

70 to 75 percent.

Question 60

The tail rotor (TR) on the H-60 is canted upward

Answer 60

20 degrees.

Question 61

The H-60 pilot is alerted to a de-ice system malfunction by a

Answer 61

FAIL flag on the ice-rate meter.

Question 62

Vibration is best defined as the periodic back and forth movement of a component caused by

Answer 62

unbalance or external forces.

Question 63

Vibration frequency is the number of cycles completed in

Answer 63

a specified period of time.

Question 64

What readings do you use to find the location and amount of imbalance on an H-60?

Answer 64

Amplitude and phase angle measurements.

Question 65

The most probable cause of a low-frequency vibration is

Answer 65

a damaged or out-of-balance main rotor (MR).

Question 66

What type of vibration frequency would an out-of-balance H-60 tail rotor drive shaft cause?

Answer 66

Medium.

Question 67

High-frequency vibrations on the H-60 helicopter normally come from

Answer 67

a damaged main module.

Question 68

Longitudinal movement of the H-60 helicopter is acomplished by movement of the

Answer 68

cyclic control.

Question 69

The H-60 cyclic stick feature that allows the pilot to slew the stabilator trailing edge up without letting go of the stick is a(n)

Answer 69

manual slew-up switch.

Question 70

The H-60 flight control feature that will counteract the pitching movement resulting from the vertical lift of the canted tail rotor (TR) is the

Answer 70

yaw to longitudinal mixing.

Question 71

On the H-60, the yaw stability augmentation system (SAS) command comes from an alternating current (AC)-powered

Answer 71

yaw rate gyro.

Question 72

The statement that best describes flight control component proof torqueing is

Answer 72

after torqueing..., reduce the torque to half....

Question 73

On an H-60, what screw threaded component's procedures are identified by **SC**?

Answer 73

Safety Critical.

Question 74

During an H-60 main rotor rig check, the item you use to inspect all safety critical parts is

Answer 74

a 10-power magnifying glass.

Question 75

You are performing a tail rotor (TR) rig on an H-60. You are ready to make adjustments to a TR cable tension. You make these adjustments at the turnbuckles located

Answer 75

in front of the tail cone.

Question 76

You are performing a tail rotor (TR) rig on an H-60. TO do this properly you must have a bias of

Answer 76

3 degrees.

Question 77

You are troubleshooting the directional control pedals on an H-60 and the problem still persists. Your next course of action will be to

Answer 77

perform a tail rotor rig check.

Question 78

The T700 engine module that extracts most of the energy from the exhaust gases for output power is the

Answer 78

power turbine.

Question 79

Which sumps are used for the emergency oil system on the T700 engine?

Answer 79

A and B only.

Question 80

The internal bypass flow in the T700 fuel boost pump provides approximately

Answer 80

twice the maximum fuel-flow.

Question 81

The type of fuel pressure the T700 engine electrical filter bypass sensor senses is

Answer 81

differential.

Question 82

The T700 engine component that stops fuel-flow after sensing an overspeed condition is the

Answer 82

digital electrical control (DEC).

Question 83

The thermocouple harness on the T700 engine is a

Answer 83

one-piece assembly with seven non-removable probes.

Question 84

The hydromechanical unit actuating system on the T700 engine will open the start bleed valve when gas generator speed (Ng) goes below

Answer 84

87 percent.

Question 85

The scroll vanes of the T700 engine are anti-iced by

Answer 85

hot scavenge oil.

Question 86

The H-60 auxiliary power unit (APU) component protected by a 10-micron inlet filter is the

Answer 86

fuel pump.

Question 87

If you have a problem during H-60 auxiliary power unit (APU) start or operation, what color will the electronic sequence unit's (ESU) built-in test equipment (BITE) indicators change to illustrate the problem?

Answer 87

Black to white.

Question 88

If you find it is difficult to pull the input module free from the main module when removing the input module from an H-60 power train, you can help break the input module loose using

Answer 88

bolts.

Question 89

On the H-60, filtered oil is provided to all main transmission bearings and gears by the

Answer 89

integral sump lubrication system.

Question 90

If the main transmission on an H-60 suffers a total oil loss, it can operate at cruise for

Answer 90

30 minutes.

Question 91

The main transmission on the H-60 is equipped with

Answer 91

two lubrication pumps operating in parallel.

Question 92

The pressure side of the H-60 main transmission lubrication pumps supplies oil in gallons per minute (gpm) and pounds per square in (psi) at a rate of

Answer 92

15 gpm at 50 - 55 psi.

Question 93

On the H-60, the oil between the main module and the passages to the input modules, accessory modules, and generators is divided by the

Answer 93

main module manifold.

Question 94

The section of the tail drive shaft on an H-60 that contains interchangeable shafts is

Answer 94

II.

Question 95

The H-60 tail gearbox changes the angle of drive by

Answer 95

105 degrees.

Question 96

What is indicated if the red fire extinguisher thermal discharge indicator is missing?

Answer 96

One or both fire bottles have discharged.

Question 97

What is the operational pressure range, in pounds per square in (psi), of the tail wheel tire?

Answer 97

115-125.

Question 98

If elastomer extrusion is identified on an elastomeric bearing, the bearing should be replaced

Answer 98

within the next 50 flight hours.

Question 99

What TO should you consult for loading and offloading you helicopter on a transport aircraft?

Answer 99

The -9 TO of the aircraft you are using for transport.

Question 100

What aircraft can the H-60 be air shipped on?

Answer 100

C-17, C-5.