GM Locomotive Fuel Injection System Quiz

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Questions and Answers

What is the primary function of the governor in the fuel injection system?

To filter the fuel before it reaches the injectors

To manage air intake to the engine

To regulate the quantity of fuel injected based on engine conditions (correct)

To control the fuel pressure only

What does a clear sight glass in the fuel supply system indicate?

The need for fuel system maintenance

Consistent and clean fuel flow (correct)

Excessive fuel pressure

Air contamination in the fuel

Which component is primarily responsible for pressurizing the fuel in the injection system?

The individual fuel injector nozzle

The camshaft

The fuel feed pump (correct)

The governor

What is the maximum stall tractive effort of the GM locomotive?

540 KN Signup and view all the answers

How does the design of the fuel oil system differ between Alco and GM locomotives?

Both the design and capacity vary in multiple aspects Signup and view all the answers

Which compartment of the GM locomotive houses the air brake equipment panel?

Nose Compartment Signup and view all the answers

What problem is indicated by air bubbles or interrupted fuel flow in the return sight glass?

Issues in the fuel feed system Signup and view all the answers

How many liters is the fuel capacity of the GM locomotive?

6000 liters Signup and view all the answers

What is the width over handrails of the GM locomotive?

2.92 M Signup and view all the answers

What is the height over the cooling hood of the GM locomotive?

4.16 M Signup and view all the answers

What is the nominal maximum speed of the GM locomotive in kilometers per hour?

120 Km/h Signup and view all the answers

Which of the following is contained within the driver’s cab of the GM locomotive?

Locomotive Controller Signup and view all the answers

What is the primary function of the suction strainer in the fuel feed system?

To separate foreign particles from the fuel Signup and view all the answers

What happens when the primary filter becomes clogged and the pressure difference reaches 30 PSI?

The bypass valve opens, allowing unfiltered fuel to flow Signup and view all the answers

What is the pressure setting for the bypass valve on the secondary fuel filters?

60 PSI Signup and view all the answers

Where does the fuel oil go after passing through the secondary filters?

To the fuel injector through supply manifolds Signup and view all the answers

What indicates the condition of the secondary fuel filters?

Bypass sight glass Signup and view all the answers

What is the role of the fuel pump in the fuel feed system?

To supply adequate fuel to the engine at various speeds Signup and view all the answers

What does the term 'atomised condition' refer to in the fuel injection system?

Fuel that is fragmented into tiny droplets Signup and view all the answers

What occurs when the pressure difference across the secondary filters reaches 60 PSI?

The bypass valve opens and diverts fuel back to the tank Signup and view all the answers

Which component is responsible for protecting the fuel pump from foreign particles?

Suction strainer Signup and view all the answers

What is the significance of the sight glass in the fuel system?

To indicate flow of fuel in the bypass Signup and view all the answers

What is the function of the Turbo circuit breaker?

To provide power and protection to the turbo lube oil pump motor Signup and view all the answers

Which breaker is responsible for protecting the loco control computer?

Computer Control Breaker Signup and view all the answers

What does the DC link control breaker function as?

To regulate DC power distribution Signup and view all the answers

Which of the following breakers is classified as a local control breaker?

Fuel pump breaker Signup and view all the answers

What is the purpose of the Isolation switch on the engine control panel?

To select the operational mode of the engine Signup and view all the answers

Which component does the AC Control Breaker specifically protect?

The companion alternator output Signup and view all the answers

Which breaker provides power for the CCB computer from the locomotive batteries?

Micro Air Brake Control breaker Signup and view all the answers

What kind of switch is used for the classification lights?

Rotary switch having three positions Signup and view all the answers

What is the function of the Can fan breaker?

To manage fan operations within the locomotive Signup and view all the answers

What is the primary purpose of the EM 2000 display panel?

To offer an interface between the control computer and the operator Signup and view all the answers

Which component is part of the Traction Control Converter Compartment?

Dynamic Breaking Grids Signup and view all the answers

What feature allows maintenance personnel to measure voltages in the system?

Test panel jacks Signup and view all the answers

Which of the following is NOT mentioned as a component of the electrical control cabinet?

Voltage Divider Signup and view all the answers

How many Dynamic Grid Cooling fans are there in the Traction Control Converter Compartment?

Two Signup and view all the answers

What does the keypad of the EM 2000 display panel provide?

Sixteen push-button keys Signup and view all the answers

Which component serves as a power supply for the computer in the electrical cabinet?

Computer Power Supply Signup and view all the answers

What type of blower is used to keep the electrical components in the cabinet cool and dust-free?

Electrical cabinet blower Signup and view all the answers

Which component is part of the Main Generator Compartment?

Traction Motor blower Signup and view all the answers

What does TCC stand for in the context of the components listed?

Traction Control Converter Signup and view all the answers

Study Notes

Introduction Handbook on General Motor Diesel Locomotive

This handbook is for diesel shed staff
It was prepared by CAMTECH in February 2006
The handbook introduces the GM locomotives used in Indian Railways
The GM locomotives are 4000 HP, computer-controlled, and have special features compared to the Alco design locomotives
Suggestions from readers on improving the handbook are welcomed and will be used in future publications

Preface
Contents
Book details
Correction slips
Introduction of the GM Locomotive
General information data
Various parts and its location
Fuel Oil System
Cooling Water System
Lube Oil System
Air Intake System
Compressed air system
CCB Air Brake System
Electrical System
Computers control of locomotive
Major equipments of GM locomotives
Differences between WDG4 & WDP4 Locomotives

Book Details

Name: Introduction Handbook On General Motor Diesel Locomotive
Reference No: IRCAMTECH/2006/M/D/GM loco/1.0
Edition: First Edition
Year of publication: 2006
Target group: Diesel shed's staff
Revision detail: Revision as per requirement
Total No. of pages: 72
Compiled by: Sanjeev Kumar, Sr. CTA(Mech.)

Correction Slips

Correction slips will be numbered as follows: IRCAMTECH/2006/M/D/GM Loco/1.0/C.S.# XX date
Where XX is the serial number of the correction slip (starting from 01 onwards)

Introduction of GM Locomotive

WDG4 & WDP4 series of DLW make locomotives are GM locomotives
Models: GT46 MAC for goods service and GT46 PAC for passenger service
Engine model no: 710G3B
Equipped with a microprocessor-based computer control system (EM-2000)
Diagnostic display system (DDS) in cab for driver-computer interface
Monitors traction power, records and indicates faults, and allows diagnostic testing
Equipments like Engine, Turbo super charger, Compressor, Alternator, and Traction motors
Systems like Fuel oil, Lube oil, Cooling water, Charged air, Compressed air, Air brake, Electrical, and safety devices.
Power pack: 16 cylinder, Two strokes, 'V' arrangement, Internal combustion engine
11% better fuel efficiency compared to Alco design locomotives
4000 BHP locomotive
Highly improved maintainability compared to Alco locomotives

General Information Data

Locomotive Model Designation: GT46MAC
Under Truck Type: CO-CO
Nominal Locomotive Power: 4000 HP
Engine Model: 710G3B
Number of Cylinders: 16
Engine Type: Two-Stroke, Turbo Charged
Cylinder Arrangement: 45° "V" Arrangement
Compression Ratio: 16:1
Displacement per Cylinder: 11635cm³ (710 Cu.In)
Cylinder Bore: 230.19 mm (9-1/16")
Cylinder Stroke: 279.4 mm (11")
Rotation (Facing Generator End): Counter-clockwise)
Full Speed: 904 RPM
Normal Idle Speed: 269 RPM
Low Idle Speed: 200 RPM
Main Generator: TA17-CA6B
Traction Alternator: TA17
Companion Alternator: CA6B
Maximum Voltage: 2600 VDC
Max. Continuous Current: 1250 Ampere
Companion Alternator Output: 230 VAC
Frequency at 904 RPM: 120 HZ
Maximum Power: 250 kVA (P. Factor 0.8)
Auxiliary Generator: 5A-8147
Nominal Voltage: 74 volts DC (Rectified)
Maximum Power: 18 kW
Traction Motors: Siemens 1TB-2622-0TA 02
Quantity: 6 (3 in parallel per bogie)
TCC1, TCC2 Model: 1GE420 050 9010.00 MB 74
Rating: 1430 KW
Type: Voltage Source Inverter
Quantity: 2 per bogie (truck)
With Gate Turn-Off Thyristors

Etc...

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Description

Test your knowledge on the GM locomotive's fuel injection system and various specifications. This quiz covers key components such as governors, fuel capacity, and the design differences between locomotives. Challenge yourself with questions about performance metrics and design features.