Electric and Diesel Locomotives Quiz
144 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is provided to protect the Loco from obstruction on Rails in AC/Diesel Locos?

  • Buffer
  • Cattle Guard
  • Rail Guard (correct)
  • CBC

    • What type of relays are Safety Relays in Electric Locos?

  • Some DU and some DI type (correct)
  • All DI type
  • All DU and DI type
  • All DU Type

    • What is the resistance of a conductor inversely proportional to?

  • Length
  • Area of cross-section (correct)
  • Density
  • Specific Resistance

    • What is the formula for Electric power?

    <p>P=VI</p> Signup and view all the answers

    What is the SI unit of resistance?

    <p>Ohm</p> Signup and view all the answers

    What is the obstruction offered by a material of a conductor to the passage of electric current known as?

    <p>Resistance</p> Signup and view all the answers

    What is the rate of flow of electric charge known as?

    <p>Electric current</p> Signup and view all the answers

    What is the purpose of a Cattle Guard in AC/Diesel Locos?

    <p>To protect the Loco from obstruction on Rails</p> Signup and view all the answers

    What is the purpose of sand in locomotives?

    <p>To reduce wheel slipping</p> Signup and view all the answers

    Which of the following is an insulating material?

    <p>Paper</p> Signup and view all the answers

    What is the rating of a fuse wire expressed in?

    <p>Amperes</p> Signup and view all the answers

    Transformer ratings are given in which unit?

    <p>KVA</p> Signup and view all the answers

    What is used to collect current from OHE to AC loco?

    <p>Pantograph</p> Signup and view all the answers

    What type of control is used for speed control in AC locomotives?

    <p>Rheostatic control</p> Signup and view all the answers

    What is measured using a hydrometer?

    <p>Specific gravity of electrolyte</p> Signup and view all the answers

    When is Ohm's Law not applicable?

    <p>Vacuum tubes</p> Signup and view all the answers

    What is the purpose of shunting contactors in a loco?

    <p>To stabilize the speed</p> Signup and view all the answers

    What type of electrical braking system is used in AC locomotives?

    <p>Both</p> Signup and view all the answers

    During rheostatic braking, what does the traction motor work as?

    <p>Generator</p> Signup and view all the answers

    What is the main transformer winding known as in an AC loco?

    <p>TFWA</p> Signup and view all the answers

    How many tappings are provided in the main transformer of an AC loco?

    <p>31</p> Signup and view all the answers

    What is the capacity of the transformer provided in WAG-5 locos?

    <p>5400 KVA</p> Signup and view all the answers

    What is the minimum battery voltage required for energization of AC locos?

    <p>90V</p> Signup and view all the answers

    What is the capacity of the transformers provided in WAG-7 / WAP-4 locos?

    <p>5400 KVA</p> Signup and view all the answers

    What causes thick black smoke from the engine?

    <p>Low BAP</p> Signup and view all the answers

    When does the engine come to idle?

    <p>OST</p> Signup and view all the answers

    What is the device used to transmit loco speed from wheels to the speedometer?

    <p>Tacho Generator</p> Signup and view all the answers

    How is traction motor load transferred to the Bogie frame?

    <p>Main Journal</p> Signup and view all the answers

    What is the recommended height range for side buffers?

    <p>1105mm to 1030mm</p> Signup and view all the answers

    What is the minimum distance required between the brake block and wheel in release position?

    <p>10mm</p> Signup and view all the answers

    How many pinion teeth are in a GE-752 TM?

    <p>16</p> Signup and view all the answers

    What is the purpose of a safety device that brings the engine to idle?

    <p>OST</p> Signup and view all the answers

    The supercharged air in the air manifold is called?

    <p>CAP</p> Signup and view all the answers

    What is the safety device provided in the LUBE oil system?

    <p>LLOB</p> Signup and view all the answers

    When LLOB trips, the engine will?

    <p>Shutdown</p> Signup and view all the answers

    Where are the MR cooling coils in WDG-4 located?

    <p>Radiator room</p> Signup and view all the answers

    What is the cooling water capacity in WDM-3A Locomotive?

    <p>1300</p> Signup and view all the answers

    In WDM-3A engine, the water pump is driven by?

    <p>Gear</p> Signup and view all the answers

    When the headlight becomes defective, the speed of the train shall not exceed?

    <p>40</p> Signup and view all the answers

    What is the type of transmission in WDM-3 A locomotive?

    <p>DC-AC</p> Signup and view all the answers

    During night when the headlight is not glowing, switch ON which light and work further?

    <p>Marker light with 40 kmph</p> Signup and view all the answers

    What is the horsepower of WDG-3A Loco?

    <p>3600</p> Signup and view all the answers

    Where is the battery knife switch located in ALCO locos?

    <p>Nose compartment</p> Signup and view all the answers

    What is the type of engine in ALCO Loco?

    <p>4 Stroke</p> Signup and view all the answers

    When does the AFL system operate?

    <p>All of the above</p> Signup and view all the answers

    In AC/Diesel Locos, what is provided to secure the Loco?

    <p>Wooden wedges</p> Signup and view all the answers

    What is the BP pressure in ALCO Locomotive?

    <p>5 kg/cm2</p> Signup and view all the answers

    In AC/Diesel Locos, what is provided to protect the Loco from bumping?

    <p>Cattle guard</p> Signup and view all the answers

    Which item is used to reset AFL?

    <p>SW-1 &amp; SW-2</p> Signup and view all the answers

    What is the position of MUSD and ECS for engine cranking?

    <p>RUN, RUN</p> Signup and view all the answers

    In AC/Diesel Locos, what is provided to couple or un-couple?

    <p>Both A&amp;B</p> Signup and view all the answers

    In AC/Diesel Locos, what safety device is provided to keep alertness of LP/ALP?

    <p>Vigilance control device</p> Signup and view all the answers

    In AC/Diesel Locos, what safety device is provided to know the speed?

    <p>Speedo meter</p> Signup and view all the answers

    In AC/Diesel Locos, what is provided to protect the control circuits?

    <p>Both A&amp;B</p> Signup and view all the answers

    In AC/Diesel Locos, what is provided to protect the Loco from animals?

    <p>Cattle Guard</p> Signup and view all the answers

    In AC/Diesel Locos, what is used to couple or un-couple the coaches?

    <p>CBC coupling</p> Signup and view all the answers

    What type of contactors are used in WDG-4?

    <p>FS contactors</p> Signup and view all the answers

    What is the number of positions in the isolation switch of WDG-4 (ECS)?

    <p>2</p> Signup and view all the answers

    What does it indicate if the air flow meter shoots up with a jerk while running?

    <p>Parting takes place</p> Signup and view all the answers

    What type of couplings does the WDM-2 expressor have?

    <p>Fast and flexible</p> Signup and view all the answers

    What can cause excess brake cylinder pressure?

    <p>Wheel skidding</p> Signup and view all the answers

    What supplies power to the ECC coil through a breaker?

    <p>FPB</p> Signup and view all the answers

    What type of filters are used in the fuel oil system?

    <p>Socks type</p> Signup and view all the answers

    What can cause wheel skidding?

    <p>Excess brake cylinder pressure</p> Signup and view all the answers

    What causes thick black smoke from the engine?

    <p>Low BAP</p> Signup and view all the answers

    When does the engine come to idle?

    <p>OST</p> Signup and view all the answers

    What device transmits loco speed from wheels to the speedometer?

    <p>Tacho Generator</p> Signup and view all the answers

    How is traction motor load transferred to the Bogie frame?

    <p>Suspension Nose</p> Signup and view all the answers

    What is the recommended height range for side buffers?

    <p>1105mm to 1030 mm</p> Signup and view all the answers

    What is the minimum distance required between the brake block and wheel in release position?

    <p>10mm</p> Signup and view all the answers

    How many pinion teeth are in a GE-752 TM?

    <p>17</p> Signup and view all the answers

    What safety device brings the engine to idle?

    <p>OST</p> Signup and view all the answers

    What is the unit of S.F.C (Specific Fuel Consumption)?

    <p>gm/hp/hr</p> Signup and view all the answers

    Which of the following is not the safety item of Locomotive?

    <p>ACP</p> Signup and view all the answers

    In WDP-2 how many numbers of cam bushes are fitted in blocks?

    <p>14</p> Signup and view all the answers

    Which of the following is the prime mover?

    <p>Engine</p> Signup and view all the answers

    At what temperature does the hot engine alarm sound in WDG-3A locos?

    <p>90 degrees centigrade</p> Signup and view all the answers

    What is the capacity of the lube oil dip stick gauge in WDG-3A locos?

    <p>380 liters</p> Signup and view all the answers

    In scavenging period, burnt gases are pushed out by?

    <p>By TSC</p> Signup and view all the answers

    What is the reason for Hot engine?

    <p>All of the above</p> Signup and view all the answers

    What is the result of a reduction in BP pressure?

    <p>Brakes application</p> Signup and view all the answers

    What is the idle RPM of a WDG-4 engine?

    <p>360</p> Signup and view all the answers

    What increases the copper content in lube oil?

    <p>X-head floating bush wear</p> Signup and view all the answers

    What is the cause of hammering sound coming from the engine?

    <p>Any one of the above</p> Signup and view all the answers

    Where is the lube oil cooler located in WDG-4 Locos?

    <p>Radiator room</p> Signup and view all the answers

    Where is the ¾” Coc (BP COC) located in WDG-3A Locos?

    <p>Nose compartment</p> Signup and view all the answers

    What is the HP input to traction motors in WDG-4 Locos?

    <p>3726</p> Signup and view all the answers

    What has replaced the conventional electronic type excitation system in new locos?

    <p>Static excitation system</p> Signup and view all the answers

    How many teeth are in a split gear?

    <p>34</p> Signup and view all the answers

    What type of lubrication system is used in WDP-2 Loco?

    <p>Forced feed</p> Signup and view all the answers

    What is the BHP of WDM-2 Loco?

    <p>2400</p> Signup and view all the answers

    What is the material of oil seal in ALCO TSC Rotor side?

    <p>Brass seal</p> Signup and view all the answers

    How many cam lobs are in one cam segment?

    <p>4</p> Signup and view all the answers

    What is the purpose of honey combing in a locomotive?

    <p>Liner</p> Signup and view all the answers

    What is the driving source for the water pump in a WDP-2 Loco?

    <p>Extension shaft gear</p> Signup and view all the answers

    How is the GE governor operated?

    <p>Mechanically</p> Signup and view all the answers

    Where is the Eddy current clutch located in a locomotive?

    <p>Radiator room</p> Signup and view all the answers

    What drives the turbo supercharger (TSC) in ALCO Locos?

    <p>Exhaust gas</p> Signup and view all the answers

    What is the capacity of the fuel oil tank in WDG-3A Loco?

    <p>3000 liters</p> Signup and view all the answers

    Where is the fuel oil primary filter located in WDM-3A?

    <p>Engine room</p> Signup and view all the answers

    What indicates the working of the Compressor Lube oil pump?

    <p>Sight glass</p> Signup and view all the answers

    Where is the fuel pump motor located in WDM-3A?

    <p>Engine room</p> Signup and view all the answers

    Which governor is provided with LLOB in ALCO Locos?

    <p>WOODWARD</p> Signup and view all the answers

    How is the feed pipe charged?

    <p>By a valve</p> Signup and view all the answers

    What is the cause of thick black smoke from the engine?

    <p>Less BAP</p> Signup and view all the answers

    When does the engine come to idle?

    <p>OST</p> Signup and view all the answers

    What device transmits loco speed from wheels to the speedometer?

    <p>Tacho Generator</p> Signup and view all the answers

    How is traction motor load transferred to the Bogie frame?

    <p>Suspension Nose</p> Signup and view all the answers

    What is the recommended height range for side buffers?

    <p>1150 mm to 1000 mm</p> Signup and view all the answers

    What is the minimum distance required between the brake block and wheel in release position?

    <p>10mm</p> Signup and view all the answers

    How many pinion teeth are in a GE-752 TM?

    <p>17</p> Signup and view all the answers

    What brings the engine to idle?

    <p>OST</p> Signup and view all the answers

    How many teeth are in a split gear?

    <p>34</p> Signup and view all the answers

    What type of lubrication system is used in WDP-2 Loco?

    <p>Forced feed</p> Signup and view all the answers

    What is the horsepower of WDM-2 loco?

    <p>2400</p> Signup and view all the answers

    What is the material of oil seal in ALCO TSC Rotor side?

    <p>Brass seal</p> Signup and view all the answers

    How many cam lobs are in one cam segment?

    <p>4</p> Signup and view all the answers

    What is the BHP of WDP-1 Loco?

    <p>2000</p> Signup and view all the answers

    How is the water pump driven in a WDP-2 Loco?

    <p>Extension shaft gear</p> Signup and view all the answers

    What is the operation type of the GE governor?

    <p>Pneumatically</p> Signup and view all the answers

    In WDG-3A locos, what is the temperature in degrees centigrade at which the hot engine alarm (HEA) will come?

    <p>80</p> Signup and view all the answers

    What is the capacity of the lube oil dip stick gauge in WDG-3A locos?

    <p>380</p> Signup and view all the answers

    What is the effect of a reduction in BP pressure in a locomotive?

    <p>Brakes application</p> Signup and view all the answers

    What is the idle RPM of the engine in WDG-4 locos?

    <p>369</p> Signup and view all the answers

    Where is the lube oil cooler located in WDG-4 locos?

    <p>Radiator room</p> Signup and view all the answers

    In WDG-3A locos, where is the ¾” COC (BP COC) located?

    <p>Nose compartment</p> Signup and view all the answers

    What is the HP input to traction motors in WDG-4 locos?

    <p>3726</p> Signup and view all the answers

    What is the type of excitation system used in new locomotives?

    <p>Static excitation system</p> Signup and view all the answers

    What is the reason for a hot engine in a locomotive?

    <p>All of the above</p> Signup and view all the answers

    What is the unit of Specific Fuel Consumption (S.F.C)?

    <p>gm/hp/hr</p> Signup and view all the answers

    Which component is responsible for increasing copper content in lube oil?

    <p>X-head floating bush wear</p> Signup and view all the answers

    Where is the eddy current clutch located in a locomotive?

    <p>Control compartment</p> Signup and view all the answers

    How many cam bushes are fitted in blocks in a WDP-2 locomotive?

    <p>14</p> Signup and view all the answers

    What is not a safety item of a locomotive?

    <p>ACP</p> Signup and view all the answers

    What type of governor is provided in Loco A?

    <p>WOOD WARD</p> Signup and view all the answers

    What is the prime mover of a locomotive?

    <p>Engine</p> Signup and view all the answers

    What drives the turbo supercharger in an ALCO loco?

    <p>Exhaust gas</p> Signup and view all the answers

    What is the fuel oil tank capacity in a WDG-3A locomotive?

    <p>6000 liters</p> Signup and view all the answers

    During scavenging period, burnt gases are pushed out by what?

    <p>By TSC</p> Signup and view all the answers

    Where is the fuel oil primary filter located in a WDM-3A locomotive?

    <p>Engine room</p> Signup and view all the answers

    What is the cause of a hammering sound coming from an engine?

    <p>Any one of the above</p> Signup and view all the answers

    Where is the fuel pump motor located in a WDM-3A locomotive?

    <p>Engine room</p> Signup and view all the answers

    What indicates the working of the compressor lube oil pump?

    <p>Sight glass</p> Signup and view all the answers

    What valve is used to charge the feed pipe?

    <p>Injecting valve</p> Signup and view all the answers

    Study Notes

    AC/Diesel Locos

    • Cattle Guard is provided to protect the Loco from obstruction on Rails.

    Electric Locos

    • Safety Relays are Some DU and some DI type relays.

    Electric Power

    • The resistance of a conductor is indirectly proportional to the Area of cross-section.
    • The formula for Electric power is P=VI.
    • The SI unit of resistance is Ohm.
    • The obstruction offered by a material of conductor to the passage of electric current is known as Resistance.
    • The rate of flow of electric charge is known as Electric current.

    Insulating Materials

    • Paper is an insulating material.

    Ohm's Law

    • Ohm’s Law is not applicable to Vacuum tubes.

    Fuse Wire

    • The rating of a fuse wire is always expressed in Amperes.

    Transformer Ratings

    • Transformer ratings are given in KVA.

    Hydrometer

    • Hydrometer is used for measuring the Specific gravity of electrolyte.

    Locomotives

    • Sand is used in Locomotives to avoid Wheel skidding and Wheel slipping.
    • Current is collected from OHE to AC loco through Pantograph.

    Speed Control

    • The speed control method used in AC locomotive is Regenerative control.
    • Shunting contactors are provided in the loco for To stabilize the speed.

    Electrical Braking System

    • The type of Electrical braking system used in AC locomotive is Regenerative.

    Rheostatic Braking

    • During Rheostatic braking, traction motor works as a Generator.

    Main Transformer

    • The main transformer winding is known as TFWR.
    • In AC Loco, Main transformer is connected with 32 no.of tappings.
    • In WAG-5 locos, the capacity of transformer provided is 5000 KVA.
    • In WAG-7 / WAP-4 locos, the capacity of transformers provided is 5000 KVA.

    Battery Voltage

    • The minimum Battery voltage is required for energisation of AC locos is 90V.

    Engine and Locos

    • Engine given thick black smoke due to low BAP.
    • Engine comes to idle through OST.
    • Traction motor load is transferred on Bogie frame through Axle Box.
    • Height of side Buffer should be maintained between 1105mm to 1030 mm.

    Safety Devices

    • Minimum distance between Brake block and Wheel in release position should be 5mm.
    • No. of Pinion teeth in GE-752 TM is 17.
    • To secure the Loco, Wooden wedges will be given.
    • In AC/Diesel locos, to protect the loco from bumping, Rail guard is given.
    • To keep alertness of LP/ALP, Vigilance control device is provided.

    AC/Diesel Locos

    • To know the speed, Speedo meter is provided.
    • To protect the control circuits, MCB is provided.
    • To protect the Loco from animals, Cattle Guard is provided.
    • Cab lights are used in AC/Diesel locos.

    Engine Cranking and AFL

    • For engine cranking, MUSD and ECS position should be RUN, RUN.
    • AFL system operates during D-1 emergency, ACP, GUARD brake application.
    • SW-1& SW-2 are used to reset AFL.
    • BP pressure in ALCO Locomotive is 5 kg/cm2.
    • HP of WDG-3A Loco is 3600.

    Transmission and Battery

    • Type of transmission in WDM-3 A is DC-DC.
    • Battery knife switch is located in Nose compartment.
    • Type of engine in ALCO Loco is 4 Stroke.

    Air System

    • The super charged air in the air manifold is called BAP.
    • Safety device provided in the LUBE oil system is GFOLR.
    • When LLOB trips, the engine will come to IDLE.

    Cooling System

    • MR cooling coils in WDG-4 are located at Radiator room.
    • Cooling water capacity in WDM-3A Locomotive is 910 liters.
    • Water pump in WDM-3A engine is driven by Belts.

    Head Light and Other

    • When head light becomes defective, speed of the train shall not exceed 30 kmph.
    • During night when head light is not glowing, switch ON Microprocessor control light and work further with 40 kmph.
    • In WDG-4, power contactors are replaced with FS contactors.
    • ECS isolation switch is having 2 positions.

    Air Flow and Brakes

    • While on run, if Air flow meter shoots up with jerk, it means Parting takes place.
    • Excess brake cylinder pressure can cause Wheel skidding.
    • ECC coil gets supply through MCB.

    Fuel Oil System

    • In Fuel oil system, Socks type filters are used.

    Engine and Performance

    • Engine given thick black smoke due to low BAP or defective CCE motor
    • Engine idle RPM in WDG-3A locos is 360 and in WDG-4 locos is 469
    • Engine comes to idle due to OST, ACP, or Low Lube oil indication
    • Hammering sound coming from Engine is due to Exhaust valve bend, Fuel cam worn out, or X-head roller worn out
    • Hot engine alarm (HEA) will come at 90 degrees centigrade in WDG-3A locos

    Loco and Bogie

    • Traction motor load is transferred on Bogie frame through Main Journal, Axle Box, or Helical Coil spring
    • Height of side Buffer should be maintained between 1150 mm to 1000 mm
    • Minimum distance between Brake block and Wheel in release position should be 10mm

    Speed and Transmission

    • Device used to transmit loco speed from wheels to the speedometer is called Tacho Generator or Axle Generator
    • No. of Pinion teeth in GE-752 TM is 17
    • HP input to Traction motors in WDG-4 Loco is 3726
    • Conventional electronic type excitation system is replaced with a new system in new Locos
    • Reduction in BP pressure causes Brakes release, slow release, or application
    • Split gear has 30 teeth in new Locos

    Lubrication and Cooling

    • Lube oil dip stick gauge of WDG-3A has 400 liters capacity
    • Lube oil cooler in WDG-4 Locos is located in Radiator room
    • In WDP-2 Loco, Splash Type lubrication system is used
    • Water pump is driven from Split gear or Extension shaft gear

    Governors and Safety Devices

    • GE governor is operated mechanically
    • Eddy current clutch is located in Nose compartment
    • LLOB is provided in GE Governor Loco
    • OST, ACP, and LWS are safety devices in Loco
    • Hot engine alarm (HEA) will come at 90 degrees centigrade in WDG-3A locos

    Fuel and Turbo Charger

    • Fuel oil tank capacity in WDG-3A Loco motive is 4000 liters
    • Fuel oil primary filter in WDM-3A is located in Engine room
    • Fuel pump motor in WDM-3A is located in Engine room
    • Turbo super charger (TSC ) in ALCO Locos is driven by Exhaust gas

    Engine and Performance

    • Engine given thick black smoke due to low BAP or defective CCE motor
    • Engine idle RPM in WDG-3A locos is 360 and in WDG-4 locos is 469
    • Engine comes to idle due to OST, ACP, or Low Lube oil indication
    • Hammering sound coming from Engine is due to Exhaust valve bend, Fuel cam worn out, or X-head roller worn out
    • Hot engine alarm (HEA) will come at 90 degrees centigrade in WDG-3A locos

    Loco and Bogie

    • Traction motor load is transferred on Bogie frame through Main Journal, Axle Box, or Helical Coil spring
    • Height of side Buffer should be maintained between 1150 mm to 1000 mm
    • Minimum distance between Brake block and Wheel in release position should be 10mm

    Speed and Transmission

    • Device used to transmit loco speed from wheels to the speedometer is called Tacho Generator or Axle Generator
    • No. of Pinion teeth in GE-752 TM is 17
    • HP input to Traction motors in WDG-4 Loco is 3726
    • Conventional electronic type excitation system is replaced with a new system in new Locos
    • Reduction in BP pressure causes Brakes release, slow release, or application
    • Split gear has 30 teeth in new Locos

    Lubrication and Cooling

    • Lube oil dip stick gauge of WDG-3A has 400 liters capacity
    • Lube oil cooler in WDG-4 Locos is located in Radiator room
    • In WDP-2 Loco, Splash Type lubrication system is used
    • Water pump is driven from Split gear or Extension shaft gear

    Governors and Safety Devices

    • GE governor is operated mechanically
    • Eddy current clutch is located in Nose compartment
    • LLOB is provided in GE Governor Loco
    • OST, ACP, and LWS are safety devices in Loco
    • Hot engine alarm (HEA) will come at 90 degrees centigrade in WDG-3A locos

    Fuel and Turbo Charger

    • Fuel oil tank capacity in WDG-3A Loco motive is 4000 liters
    • Fuel oil primary filter in WDM-3A is located in Engine room
    • Fuel pump motor in WDM-3A is located in Engine room
    • Turbo super charger (TSC ) in ALCO Locos is driven by Exhaust gas

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Swr ALP PRQ PDF

    Description

    Quiz questions on electric and diesel locomotives, covering safety features and technical aspects.

    More Like This

    Electric Locomotives
    6 questions

    Electric Locomotives

    FresherElectricOrgan avatar
    FresherElectricOrgan
    Electric Locomotives Quiz
    6 questions

    Electric Locomotives Quiz

    FresherElectricOrgan avatar
    FresherElectricOrgan
    Electric Rolling Stock Classification
    82 questions

    Electric Rolling Stock Classification

    SolicitousOklahomaCity avatar
    SolicitousOklahomaCity
    Commissioning of Electric Locomotives and EMUs
    80 questions

    Commissioning of Electric Locomotives and EMUs

    SolicitousOklahomaCity avatar
    SolicitousOklahomaCity
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser