Draw a labeled sketch of pump feed fuel supply system for petrol engine and state location and function of each component.

Draw a labeled sketch of pump feed fuel supply system for petrol engine and state location and function of each component.
by

1 Answer

Answer :

image

The pump feed system is shown in the figure above. Fuel tank is for storage of fuel located above the engine of two wheeler and in case of car located at backside of the car.In this system, a steel pipe carries the fuel to the fuel pump which pumps it into the float chamber of the carburetor through a flexible pipe. If the fuel pump is mechanical, it has to be driven from the engine camshaft and hence placed on the engine itself. However electrically operated pump can be placed anywhere. Fuel pump pressurize fuel and send it to the floating chamber of carburetor. Carburetor is placed before the inlet manifold and it serves the function of mixing petrol and air as per required ratio. It is mostly located at the rear in the fuel tank reducing the tendency of forming vapor lock. The system provides the fuel requirement at various engine speeds efficiently. 

by

Related questions

(i) state any two applications of I. C. Engine (ii) Draw a neat sketch of Two stroke petrol engine.

Description : (i) state any two applications of I. C. Engine (ii) Draw a neat sketch of Two stroke petrol engine.

Last Answer : Applications of I.C engine 1) In Automotive - i) Two stroke engine - Mopeds, Scooters. ii) Four stroke engine - Light vehicles, Heavy vehicles. 2) Marine Application - Ships, Boat 3) Locomotive s - ... handling system  (ii) Draw a neat sketch of Two stroke petrol engine. OR

Draw neat sketch of valve timing diagram for 4-stroke petrol engine & label it.

Description : Draw neat sketch of valve timing diagram for 4-stroke petrol engine & label it.

Last Answer : Figure: Valve timing diagram of 4 stroke SI engine  

Describe working principle of 4 – Stroke Petrol (Engine) with sketch

Description : Describe working principle of 4 – Stroke Petrol (Engine) with sketch

Last Answer : Working of four stroke petrol engine: 1. Suction stroke: During this stroke, inlet valve is open and exhaust valve is closed. The piston moves from TDC to BDC and crank shaft rotates ... gases outside the combustion chamber. Crankshaft rotates by two complete revolutions through 7200 .

List all the components of petrol fuel supply system.

Description : List all the components of petrol fuel supply system.

Last Answer : Components of Petrol fuel supply system: 1) Fuel Tank 2) Flexible fuel line 3) Fuel tank to fuel pump line 4) Fuel pump 5) Fuel filter 6) Carburetor or Injector

Explain the working of S. U. Electrical Fuel Pump with sketch.

Description : Explain the working of S. U. Electrical Fuel Pump with sketch. 

Last Answer : S. U. Electrical Fuel Pump: Working of Electric Fuel Pump: It consists of a diaphragm which is operated electrically. By turning on the ignition switch, the solenoid winding generates ... the same process is repeated, the pump continues to operate until the ignition switch is turned off.

List any two major requirements of fuel injection system. Draw a layout of fuel injection system used in diesel engine.

Description : List any two major requirements of fuel injection system. Draw a layout of fuel injection system used in diesel engine.

Last Answer : Requirements of fuel injection system 1) Metering - The fuel injection system must measure the fuel supplied to the engine very accurately as fuel requirements vary from low to high engine speeds. 2) Time- ... and stop injection- The injection fuel must start and end quickly.  OR

(i) Describe the principle of mechanical governor in fuel injection pump. (ii) State four types of injector nozzles

Description : (i) Describe the principle of mechanical governor in fuel injection pump. (ii) State four types of injector nozzles

Last Answer : (i) Working Principal of mechanical governor of FIP: The working principle of mechanical governor is illustrated in figure. When the engine speed tends to exceed the limit the weights fly apart. This causes ... ) Multi-hole nozzle 3) Long stem nozzle 4) Pintle nozzles 5) Pintuax nozzles 

Explain the procedure of Morse Test” to be conducted for four cylinder petrol engine.

Description : Explain the procedure of Morse Test” to be conducted for four cylinder petrol engine. 

Last Answer : Morse Test: Used for multi cylinder engines Procedure: 1. The engine is run at the required speed and the torque is measured. 2. One cylinder is cut out by shorting the plug if an S.I. engine is under test. 3. ... -B4 Total IP of Engine = I1+I2+I3+I4 Friction Power F.P. = I.P - B.P

Illustrate with neat sketch the construction of fuel injector

Description : Illustrate with neat sketch the construction of fuel injector

Last Answer : Diesel Fuel Injector: The injector assembly consists of - i) a needle valve ii) a compression spring iii) a nozzle iv) an injector body. When the fuel is supplied to lift the injection pump it ... and hence the valve opening pressure is controlled by adjusting the screw provided at the top.  

Draw the neat sketch of overhead valve operating mechanism and explain its working.

Description : Draw the neat sketch of overhead valve operating mechanism and explain its working.

Last Answer : Overhead valve mechanism: Figure shows the valve mechanism to operate the valve when it is in the cylinder head (in I and F head design). This type of mechanism requires two additional moving parts the push ... close. A spring (attached to the valve) returns the valve to its seated position.   

Statement: Valve Cooling is necessary in some I. C. Engine. Justify the statement by giving reasons and explain its working with sketch.

Description : Statement: Valve Cooling is necessary in some I. C. Engine. Justify the statement by giving reasons and explain its working with sketch.

Last Answer : Reasons: Exhaust valve temperature in modern engine is as high as 750˚C. Thus cooling of exhaust gas becomes very important. Cooling water jackets are arranged near the valves for valve cooling. In many ... given to cooler stem as it falls back to stem again. This keeps the valve head cool.  

Show the following components in an engine with neat sketch: piston, connecting rod, valves, spark plug

Description : Show the following components in an engine with neat sketch: piston, connecting rod, valves, spark plug

Last Answer : OR

Describe the working of four stroke C. I. engine with neat sketch.

Description : Describe the working of four stroke C. I. engine with neat sketch. 

Last Answer : Working principle of CI engine: 1. Suction stroke: During this stroke, inlet valve is open and exhaust valve is closed. Only air is sucked into cylinder during this stroke. The ... burnt gases outside the combustion chamber. Crankshaft rotates by two complete revolutions through 720˚. 

Draw sketches showing fuel metering in the inline type F. I. P. and explain its working.

Description : Draw sketches showing fuel metering in the inline type F. I. P. and explain its working.

Last Answer : Fuel Metering in inline type fuel injection pump: The position of the plunger in the fuel injection pump can be varied by means of a control rod having a rack and pinion arrangement. By operating ... (vi) shows that no fuel is being supplied to the injector; i. e. the engine has stopped.

Elaborate the working of dry sump lubrication system with sketch.

Description : Elaborate the working of dry sump lubrication system with sketch.

Last Answer : Dry Sump Lubrication: Working of dry sump lubrication system: In this system, the lubricating oil is not stored in oil sump .The oil from the sump is carried to a ... engines. The pressure relief valves are used to maintain the predefined pressure value inside the lubricating system

Illustrate with neat sketch the working of battery ignition system.

Description : Illustrate with neat sketch the working of battery ignition system.

Last Answer : Battery ignition system': Figure shows line diagram of battery ignition system for a 4-cylinder petrol engine. It mainly consists of a 6 or 12 volt battery, ammeter, ignition switch, auto- ... charge is ignited-combustion startsproducts of combustion expand and produce power.    OR  

Describe the working of water/liquid cooling system with neat sketch.

Description : Describe the working of water/liquid cooling system with neat sketch.

Last Answer : A water-cooled engine block and cylinder head have interconnected coolant channels running through them. At the top of the cylinder head all the channels converge to a single outlet. A pump, driven by a ... speed increases. There is no necessity of maintaining the water up to a correct level.  

Describe the construction of gear drive of camshaft drive arrangement with sketch.

Description : Describe the construction of gear drive of camshaft drive arrangement with sketch.

Last Answer : Gear Drive of Camshaft Drive: Camshaft is driven by the crankshaft either by a pair of meshing gears (timing gears) or by means of a pair of timing sprocket connected by a chain ... and crankshaft to ensure opening the valves exactly at the correct time in relation to piston position. 

Explain the working of overhead valve arrangement with sketch.

Description : Explain the working of overhead valve arrangement with sketch.

Last Answer : Overhead Valve Arrangement: Figure shows the valve mechanism to operate the valve when it is in the cylinder head (in I and F head design). This type of mechanism requires two additional ... on the valve stem to open the valve, thus connecting the valve port with the combustion chamber.

Explain working of over head valve mechanism with neat sketch.

Description : Explain working of over head valve mechanism with neat sketch.

Last Answer : Overhead valve mechanism: Figure shows the valve mechanism to operate the valve when it is in the cylinder head (in I and F head design). This type of mechanism requires two additional moving parts the ... to close. A spring (attached to the valve) returns the valve to its seated position.  

(i) Illustrate with neat sketch the working of absorber type of muffler (ii) sketch bellow type of thermostat

Description : (i) Illustrate with neat sketch the working of absorber type of muffler (ii) sketch bellow type of thermostat

Last Answer : (i) Working of absorber type of muffler: It consists of a perforated tube, around which a sound absorbing material, like fiber glass or steel wool is placed. The exhaust gases pass through the perforated tube. ... thus reducing the noise intensity.  (ii) Bellow type of thermostat:

Sketch and label simple carburettor

Description : Sketch and label simple carburettor

Last Answer : Fig. Simple Carburettor

State any two limitations of engine cooling system.

Description : State any two limitations of engine cooling system.

Last Answer : Limitations of Engine Cooling System: 1. This is a dependent system in which water circulation in the jackets is to be ensured. 2. Power absorbed by the water pump is more and it affects ... requires considerable maintenance. 5. The failure of the system results in serious damage to the engine.

State the need of cooling system of I.C.engine.

Description : State the need of cooling system of I.C.engine.

Last Answer : Need of cooling system : The cooling system is needed to keep the engine from not getting so hot as to cause problems and yet to permit it to run hot enough to ensure maximum efficiency of ... provided to prevent the damage of mechanical parts as well as to obtain maximum performance of the engine.

State the functions and materials of following engine components: (i) Piston (ii) Connecting rod (iii)Crank shaft (iv)Exhaust manifold

Description : State the functions and materials of following engine components: (i) Piston (ii) Connecting rod (iii)Crank shaft (iv)Exhaust manifold

Last Answer : Engine components Material Functions Piston Cat aluminum alloy To transmit the force of explosion to the crankshaft. To form seal so that the high pressure gases in ... atmosphere through the exhaust pipe after combustion stroke is completed. To keep back pressure minimum.

State the functions of nozzles. Classify nozzles used in diesel engine.

Description : State the functions of nozzles. Classify nozzles used in diesel engine.

Last Answer : Functions of nozzle:  1) To atomize fuel by converting it in to fine droplets. 2) To convert pressure energy in to kinetic energy. 3) To inject the fuel at right quantity at right time with ... Single hole nozzle 2) Multi-hole nozzle 3) Long stem nozzle 4) Pintle nozzles 5) Pintuax nozzles

State the common firing orders used in 4 cylinder engine.

Description : State the common firing orders used in 4 cylinder engine.

Last Answer : Firing order: The sequence in which the power impulses occur in an engine is called the firing order. Firing order for 4 cylinder engine.(Any one) 1-3-4-2 OR 1-2-4-3 OR 1-4-3-2 

Explain the working of electrically driven fan in cooling engine.

Description : Explain the working of electrically driven fan in cooling engine.

Last Answer : Working of Electrically Driven Fan in Cooling Engine: The fan is driven by a separate electric motor which is supplied with power directly from the electric circuit of the engine. A thermostat switch is ... the time the fan motor remains in ON position, while 95% of the time it is off. 

Select firing order for 4 – Cylinder engine with justification.

Description : Select firing order for 4 – Cylinder engine with justification.

Last Answer : Firing orders for 4 cylinder engine: 1-3-4-2 The firing order must be considered on the basis of engine vibrations and engine cooling. Also the firing order affects the balancing of engine ... sufficient travel time to exhaust gases. So that development of high back pressure would be avoided. 

Compare 2-stroke and 4 – stroke engine

Description : Compare 2-stroke and 4 – stroke engine

Last Answer : S. N. Four Stroke Engine Two Stroke Engine 1 One working stroke for every two revolutions of the crankshaft. One working stroke for each revolutions of the crankshaft 2 Turning ... Engine is air cooled 10 Engine requires more space.  Engine requires less space. 

Select type of a muffler for a motorcycle engine with justification.

Description : Select type of a muffler for a motorcycle engine with justification.

Last Answer : Type of a muffler for a motorcycle engine 1. Baffle type 2. Resonance type 3. Absorber type Multiple Baffle Silencers In a multiple baffle silencer, the exhaust gas escapes ... absorbing material reduces the high pressure fluctuation of the exhaust gases thus reducing the noise intensity. 

Describe working principle of four stroke diesel engine with the help of sketches.

Description : Describe working principle of four stroke diesel engine with the help of sketches.

Last Answer : Suction stroke: During this stroke, inlet valve is open and exhaust valve is closed. The piston moves from TDC to BDC and crank shaft rotates through 180˚. The downward movement of ... the burnt gases outside the combustion chamber. Crankshaft rotates by two complete revolutions through 720. 

Write the specifications of I.C. engine used in a two wheeler four stroke vehicle.

Description : Write the specifications of I.C. engine used in a two wheeler four stroke vehicle.

Last Answer : Engine specifications for two wheeler 1. Engine of Bajaj Discover 125 ST - Air-cooled, 4-stroke 124.6 cc engine - Maximum power of 12.8 Bhp at 9000 rpm - Maximum torque of 11 Nm at 7000 rpm OR 2. Honda Livo a) BS- ... rpm. d) Bore x Stroke - 50 x 55.6 mm e) C R - 9.9 : 1, Max Speed - 86KMPH

List any four components of C.I. engine.

Description : List any four components of C.I. engine.

Last Answer : Components of C.I. engine. 1. Engine Head 2. Crankshaft 3. Camshaft 4. Engine block 5. Fuel injector 6.Fuel Pump 7.Fuel Distributor 8. Cylinder liner 9. Piston

Classify I.C. engine on the basis of cycle of operation and cylinder arrangement.

Description : Classify I.C. engine on the basis of cycle of operation and cylinder arrangement.

Last Answer : 1) Cycle of operation:- a) Otto cycle engine b) Diesel cycle engine c) Duel combustion cycle engine or semi- diesel cycle engine. 2) Arrangement of cylinder:- a) Vertical engine b) horizontal engine c) Radial engine d) V-engine e) Opposed cylinder engine 

Classify I. C. Engine on the basis of -Cycle of operation -Method of cooling

Description : Classify I. C. Engine on the basis of -Cycle of operation -Method of cooling

Last Answer : Classification of I. C. Engine on the basis of  -Cycle of operation: a) Otto cycle engine b) Diesel cycle engine c) Duel combustion engine or semi-diesel cycle engine -Method of cooling: a) air cooled engine b) water cooled engine 

Define internal combustion engine

Description : Define internal combustion engine

Last Answer : Definition of I. C. engine: The I. C. engine means Internal combustion engine in which combustion i.e. burning of fuel in presence of air takes place inside the combustion chamber (closed volume). 

State the function of the following components. (i) Cam Shaft (ii) Crank Shaft

Description : State the function of the following components. (i) Cam Shaft (ii) Crank Shaft

Last Answer : Camshaft: The camshaft is a mechanical component of an internal combustion Engine. It opens and closes the inlet and exhaust valves of the engine at the right time, with the exact ... translate the linear reciprocating motion of a pistons into the rotational motion required by the automobile.

State the function of exhaust manifold.

Description : State the function of exhaust manifold.

Last Answer : Function of exhaust manifold: The exhaust manifold collects the products of combustion (exhaust gases) from two or more cylinders and conducts these to a single exhaust pipe. The exhaust manifold is ... gases. The exhaust manifold helps to increase the speed at which exhaust leaves the system.

List the function of air filter

Description : List the function of air filter

Last Answer : function of air filter:  1. Filters are used to remove foreign particles like dirt, dust and grit or filters are used to remove dust and particles out of the air. 2. It may also ... the lubrication system. It is therefore customary to install air filter on the intake system of automobile engines. 

State the functions following ignition system components (i) Ignition coil (ii) Distributor (iii)Condenser (iv)Spark plug

Description : State the functions following ignition system components (i) Ignition coil (ii) Distributor (iii)Condenser (iv)Spark plug

Last Answer : Functions following ignition system components: (i) Ignition coil: Ignition coil receives voltage from primary circuit and convert it to very high voltage up to 28000 volts required for spark by means of ... Charge of air and petrol is ignited by means of the spark produced by spark plug.

State four functions of exhaust system.

Description : State four functions of exhaust system.

Last Answer : 1) The function of an exhaust is to expel the exhaust gases from the combustion chamber of each cylinder out to the atmosphere through the exhaust pipe after combustion stroke is completed. 2) To keep back pressure minimum.

(i) Illustrate the working of splash lubrication system. (ii) state any two functions of lubrication system

Description : (i) Illustrate the working of splash lubrication system. (ii) state any two functions of lubrication system

Last Answer : (i) Working of splash lubrication system: This was employed for the engine of early vehicles. It is one of the cheapest methods of engine lubrication. A scoop is made in the lowest part of the ... the engine is turned off to prevent rust and corrosion. 6. Resist sludge and varnish build-up. 

The air-fuel ratio of the petrol engine is governed by A. fuel pump B. governor C. carburetor D. injector

Description : The air-fuel ratio of the petrol engine is governed by A. fuel pump B. governor C. carburetor D. injector

Last Answer : ANSWER : C

State the materials used for piston with justification.

Description : State the materials used for piston with justification.

Last Answer : Material used for Piston: Cast Iron, Cast Steel, Forged Steel, Cast Aluminum Alloys and Forged Aluminum Alloy. Cast Aluminum Alloys is the most commonly used material for piston because; 1. Cast ... . 4. It allows to utilize more of the force produced by combustion to power the application.

State any four requirements of gasket

Description : State any four requirements of gasket

Last Answer : Requirement of Gasket: Gaskets are used to provide a tight fitting joint between two surfaces. For example, the joint between cylinder head and block. 1. Conformity: - The gaskets must be able ... Provision of apertures: - The gasket must have apertures for any studs, bolts, opening etc.

State the use of oil additives used in lubricating oil

Description : State the use of oil additives used in lubricating oil

Last Answer : These are the chemical substances which are added to the lubricating oil either to reinforce some of its natural properties or to provide it with certain new properties which it does not possess ... sulphides or phenols with metals like tin, zinc 6) Anti-foaming additives: - polyorganosiloxanes.

Explain the working of battery ignition system with circuit diagram.

Description : Explain the working of battery ignition system with circuit diagram.

Last Answer : Battery Ignition System: Figure shows line diagram of battery ignition system for a 4-cylinder petrol engine. It mainly consists of a 6 or 12 volt battery, ammeter, ignition switch ... spark and the charge is ignited-combustion starts-products of combustion expand and produce power.   

Describe the construction and working of of thermostat valve used in cooling system.

Description : Describe the construction and working of of thermostat valve used in cooling system.

Last Answer : Bellows type thermostat valve  Construction: It consists of metallic bellows filled with some volatile liquid like acetone, alcohol or ether which boils between 75-850C. When after start the engine is ... of plunger opens a valve in the thermostat to allow coolant to flow through the radiator. 

Distinguish between air cooling system and water cooling system.

Description : Distinguish between air cooling system and water cooling system.

Last Answer : Sr. No.  Air cooling System Water cooling system 1 In this system cooling medium used is Air In this system cooling medium used is Water 2 The engine design is simple The ... air cooled engine. 9 Examples: Bikes, Scooters etc. Examples: Cars, Buses, Trucks etc.