Test 1 Subjects Check on learning questions only

Question 1

What is the energy made available by the flow of electric charge through a conductor?

Answer 1

Electricity is the energy made available by the flow of electric charge through a conductor.

Question 2

What is an electric current flowing in one direction only and substantially constant in value?

Answer 2

DC is an electric current flowing in one direction only and substantially constant in value.

Question 3

What happens to the output voltage during step-up transformation?

Answer 3

Step-up transformation is when the input coil has less wraps than the output coil causing the output voltage to increase.

Question 4

How is voltage controlled when the electricity flows into a coil causing the voltage in a second coil to have a different output voltage?

Answer 4

During transformation, voltage is controlled when electricity flows into a coil, causing the voltage in a second coil to have a different output voltage.

Question 5

What is an electrical current that reverses its direction at regularly recurring intervals?

Answer 5

AC is an electrical current the reverses its direction at regularly recurring intervals.

Question 6

How many independent generating systems provide primary AC power to the UH-60?

Answer 6

Primary AC power is provided by two independent generating systems

Question 7

What APU generator output parameters does the APU Generator Control Unit monitor?

Answer 7

The APU Generator Control Unit monitors:

over-voltage

under-voltage

feeder fault

under-frequency.

Question 8

What components does the No.1 Junction Box contain?

Answer 8

The No. 1 Junction Box contains the No.1 generator contactor (K1), current transformer (T-13), current limiters (CL4, 5, 6) and one test receptacle.

Question 9

What is the purpose of the 60 ampere current limiters?

Answer 9

The purpose of the 60 ampere current limiters are to protect the operating generator from excessive overloading during transfer operations.

Question 10

What external AC inputs does the external power monitor panel monitor?

Answer 10

The external power monitor panel monitors under-voltage, over-voltage, under-frequency, over-frequency, and correct phase rotation conditions.

Question 11

What component supplies power to the DC essential bus when no AC electrical power is supplied to the helicopter buses?

Answer 11

The battery supplies power to the DC essential bus when no AC electrical power is supplied to the helicopter.

Question 12

What component provides connection between the No. 1 and the No. 2 DC primary buses?

Answer 12

The DC bus tie contactor (K15) provides connection between the No. 1 and the No. 2 DC primary buses.

Question 13

What is the percentage of charge in the battery that allows the DC ESS BUS OFF capsule to illuminate?

Answer 13

The charge in the battery supplying the DC ESS BUS falls to 35%, will cause the BUS capsule to illuminate.

Question 14

What parameters does the Battery Analyzer/Conditioner not monitor?

Answer 14

The Battery Analyzer/Conditioner monitors Battery Voltage, temperature conditions, and charging circuit for battery charging.

Question 15

What component provides primary DC power for helicopter equipment?

Answer 15

The converter provides primary DC power for helicopter equipment.

Question 16

What component provides primary DC voltage if the No. 1 converter fails?

Answer 16

The No. 2 converter provides primary DC voltage if the No. 1 converter fails.

Question 17

What component provides primary AC voltage for the No. 1 AC buses if the No. 1 generator fails?

Answer 17

The No. 2 generator provides primary AC voltage for the No. 1 AC buses if the No. 1 generator fails.

Question 18

What bus will be affected if there is a failure to the AC Essential Bus?

Answer 18

The 26 VAC bus will be affected if there is a failure to the AC Essential Bus.

Question 19

What provides power to the AC essential bus if CL 2 fails, with No. 2 generator switch on, No. 1 generator switch off?

Answer 19

The No. 2 generator provides power to the AC essential bus if CL 2 fails, with No. 2 generator switch on, No. 1 generator switch off.

Question 20

What component allows the No. 1 generator capsule to go off, with the No. 1 generator switch placed in the test position, after the test is complete?

Answer 20

The No. 1 generator control unit allows the No. 1 generator capsule to go off, with the No. 1 generator switch placed in the test position, after the test is complete.

Question 22

Which systems does the No. 1 hydraulic system service?

Answer 22

The No. 1 hydraulic system services the first stage of the primary servos and the first stage of the tail rotor servo.

Question 23

Which systems does the No.2 hydraulic system service?

Answer 23

The No. 2 hydraulic system services the second stage of the primary servos and the pilot assist module.

Question 24

Which systems does the backup hydraulic system operate?

Answer 24

The backup hydraulic system operates the No. 1 or No. 2 system components, the second stage of the tail rotor servo, and the APU accumulator.

Question 25

Which hydraulic systems provide power to the tail rotor servo?

Answer 25

The No. 1 and the backup system provide power to the tail rotor servo.

Question 26

Which of the pump modules are interchangeable?

Answer 26

All of the pump modules are interchangeable with each other.

Question 27

Which pump(s) is/are used to replenish the hydraulic charge on the APU accumulator?

Answer 27

The backup pump is used to replenish the hydraulic charge on the APU accumulator.

Question 28

What is the purpose of the RESET position on the Leak Detection / Isolation system?

Answer 28

The purpose of the RESET position on the Leak Detection/Isolation system is to reset the hydraulic system to its normal state and turn off the caution and advisory lights turned on during the test.

Question 29

What are the two primary purposes of the APU?

Answer 29

The two primary purposes of the APU are to provide an pneumatic air and an electrical power source.

Question 30

What are the major components of the APU?

Answer 30

The major components of the APU a gas turbine power section, reduction gear drive, and appropriate controls and accessories.

Question 31

What are the two modes that the ESU operates in?

Answer 31

The two modes that the ESU operates in are the start sequence mode and the operational mode.

Question 32

What must be removed to visually check the ESU BITE indicators?

Answer 32

The soundproofing panel from cabin ceiling must be opened in order to visually check the ESU BITE indicators.

Question 33

How is the APU accumulator recharged?

Answer 33

The APU is recharged by placing GENERATORS APU switch to ON and visually checking accumulator for proper charge (pressure gage and tape indicator) or by the hand pump.

Question 34

How Many analog displays does the Central Display Unit contain?

Answer 34

The Central Display Unit contains 12 analog displays.

Question 35

Where does the No. 1 and No. 2 Engine Gas Generator speed signal (Ng) originate?

Answer 35

The No. 1 and No. 2 Engine Gas Generator speed signal (Ng) originates in the alternator.

Question 36

At what temperature will the No. 1 or No. 2 ENG OIL TEMP capsule illuminate?

Answer 36

The No. 1 or No. 2 ENG OIL TEMP capsule will illuminate at temperatures more than 150 degrees.

Question 37

What component controls the audible warning function?

Answer 37

The left relay panel controls the audible warning function.

Question 38

When is the low rotor warning disabled?

Answer 38

The low rotor warning is disabled with weight on wheels.

Question 39

When is the No. 1 or No. 2 Engine Out warning present?

Answer 39

The No. 1 or No. 2 Engine Out warning is present when Ng is less than 55%.

Question 41

What is the purpose of the starter speed switch?

Answer 41

The starter speed switch closes the start valve at 52%-65% Ng.

Question 42

How much damage is allowed in the pneumatic tubing?

Answer 42

Damage allowed in the pneumatic tubing is dents up to 25% of the tube diameter.

Question 43

What is the purpose of the APU check valve?

Answer 43

The purpose of the APU check valve is to prevent air from being forced back through the APU.

Question 44

When does the “True” #1 ENGINE STARTER caution light come on?

Answer 44

The “True” #1 ENGINE STARTER caution light comes on when the start control valve opens.

Question 45

Which switch causes the start control valve to open?

Answer 45

The start switch causes the start control valve to open.

Question 46

During engine start, ignition will continue until the ENGINE IGNITION is moved to the OFF position or _______ occurs?

Answer 46

During engine start, ignition will continue until the ENGINE IGNITION is moved to the OFF position or starter dropout occurs.

Question 47

Which switch causes the start control valve to open?

Answer 47

Start switch

Question 48

What position is the engine ignition switch in when you are going to only motor the engine?

Answer 48

The OFF position

Question 49

What type of system is used to start the main engines on the UH-60A/L?

Answer 49

An air turbine engine start motor.

Question 50

During an external start, what indications must be monitored closely?

Answer 50

TGT, ENG OUT warning disappears about 55 Ng%, ENGINE STARTER caution to disappear 52% to 65%,Clock stop when TGT TEMP peaks, Idle Speed above minimum of 63%,ENG OIL PRESS and XMSN OIL PRESS.

Question 51

When should you never do a cross bleed start?

Answer 51

For a new or newly installed engine

Question 52

What six or seven things must the copilot do during a start?

Answer 52

Control , 45 Sec, TGT exceeds limit, oil psi, %1 or 2 or % RPM R and ENGINE STARTER caution disappears before 52%Ng

Question 53

What does the acronym TGT stand for?

Answer 53

Turbine Gas Temperature

Question 54

What are the four positions of the PCL?

Answer 54

OFF, IDLE, FLY, LOCKOUT

Question 55

What does the acronym HMU stand for?

Answer 55

Hydromechanical Unit

Question 56

Where is the LDS cables connected to for both LDS Spindles to be moved at the same time?

Answer 56

MMU

Question 57

Are the axial stages through the GG rotors part of the Ng Section?

Answer 57

Yes

Question 58

How does the NG section initially begin to rotate?

Answer 58

By the PTO

Question 59

The T701C engine consists of what four modules?

Answer 59

The T701C engine consists of the Accessory Module, Cold Section Module, Hot Section Module, and Power Turbine Module.

Question 60

The number three bearing is a ball bearing, which absorbs the ________ and ________ load.

Answer 60

The number three bearing is a ball bearing, which absorbs the axial and radial load.

Question 61

The cast exhaust frame contains the ________ and bolts to the aft flange of the power turbine case.

Answer 61

The cast exhaust frame contains the C-sump and bolts to the aft flange of the power turbine case.

Question 62

There are ________ stages of axial compression in the T701C engine.

Answer 62

There are 5 stages of axial compression in the T701C engine.

Question 63

Name the four modules of the T700-GE-700 engine.

Answer 63

Cold, hot, power turbine, accessory gear box

Question 64

What section of the engine mechanically drives RPM R?

Answer 64

Np section

Question 65

Is the Ng section mechanically connected to NP?

Answer 65

No

Question 66

What is the connection between Np and RPM R?

Answer 66

One-way mechanical connection via the free-wheeling unit

Question 67

What drives the accessory gear box?

Answer 67

Gas Generator (at a variable speed)

Question 68

How many stages are there in the compressor section (Ng)?

Answer 68

There are 6: 5 axial and 1 centrifugal

Question 69

What are the two operational sections of the engine?

Answer 69

Ng and Np

Question 70

What are the three subassemblies that make up the oil filter?

Answer 70

The three subassemblies that make up the oil filter are the filter element, bowl and impending bypass indicator, and the bypass valve and inlet screen.

Question 71

The scavenge screens collect particles before they enter the \_\_\_\_\_\_\_\_.

Answer 71

The scavenge screens collect particles before they enter the lubrication and scavenge pump.

Question 72

Where does the scavenge oil flow to after it goes through the scroll vanes?

Answer 72

The scavenge oil flows to the oil tank after it has been through the scroll vanes.

Question 73

What is the service capacity for the engine oil?

Answer 73

7 quarts

Question 74

Where is the oil drawn from for the emergency oil system?

Answer 74

Sumps A and B

Question 75

How does engine oil cooling occur?

Answer 75

Liquid to liquid cooler, oil flow through the scroll vanes

Question 76

How does the oil system overcome high pressure during cold starts?

Answer 76

Oil filter bypass valve, liquid to liquid cooler bypass valve

Question 77

Which component provides electrical power to the engine?

Answer 77

Engine alternator

Question 78

How does the cockpit receive the Ng signal?

Answer 78

From the Ng winding of the alternator

Question 79

What happens If Ng signal is lost?

Answer 79

ENG OUT warning light and audio, and 0% Ng

Question 80

The engine mounted electrical alternator supplies AC power to the ignition exciter and the \_\_\_\_\_\_\_\_\_.

Answer 80

The engine mounted electrical alternator supplies AC power to the ignition exciter and the Digital Electronic Control (DEC).

Question 81

The ignition system is an AC powered capacitor discharge _________ type system.

Answer 81

The ignition system is an AC powered capacitor discharge low-voltage type system.

Question 82

What type of special tolerance, oxidation resistant wire, is the thermo elements of the thermocouple harness made of?

Answer 82

The thermo elements of the thermocouple harness are made from special tolerance, oxidation resistant chromel-alumel wire.

Question 83

The blue electrical cable carries signals between the torque and overspeed sensor, DEC, and the \_\_\_\_\_\_\_\_.

Answer 83

The blue electrical cable carries signals between the torque and overspeed sensor, DEC, and the ODV.

Question 84

Why does the fuel system operate on negative pressure?

Answer 84

It assures that the airframe fuel supply system is under negative pressure, lessening the potential of fire in case of fuel system damage.

Question 85

What happens when the fuel filter clogs?

Answer 85

Bypass indicator pops out, and the bypass valve opens

Question 86

How does the engine compensate for variable power demands from collective inputs?

Answer 86

The LDS increases/decreases fuel flow

Question 87

Metered fuel leaving the HMU is routed through the oil cooler and then to the \_\_\_\_\_\_\_\_.

Answer 87

Metered fuel leaving the HMU is routed through the oil cooler and then to the overspeed and drain valve.

Question 88

The 30 micron fuel filter provides absolute filtration for engine fuel prior to entering the \_\_\_\_\_\_\_\_.

Answer 88

The 30 micron fuel filter provides absolute filtration for engine fuel prior to entering the HMU.

Question 89

What are the parameters that influence fuel flow and variable geometry positioning?

Answer 89

The parameters that influence fuel flow and variable geometry positioning are T2, P3, and Ng.

Question 90

How is engine power adjusted with the ENG POWER CONT Levers in lockout?

Answer 90

Adjustment of the ENG POWER CONT levers adjusts the PAS to set the maximum power available.

Question 91

Adjustment of the ENG POWER CONT levers adjusts the PAS to set the maximum power available.

Answer 91

Yes, it is also supplied from the AC airframe power.

Question 92

What does the HSP automatically prevent?

Answer 92

It prevents over temperature during engine starts by shutting down the engine.

Question 93

What system keeps the engines at an approximate equal torque?

Answer 93

The torque matching/load sharing system.