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Which one having high torque petrol or diesel engines?
Diesel engines have much more torque at low rpm.
Why two stroke engines are hi-speed engines and four stroke engines are hi-torque engines?
generally , two strokes are smaller capacity , shorter stroke, higher revs. for given engine capacity , long stroke /small bore = high torque / low revs short stroke/big bore = low torque / high revs
What type of starting system in high bypass turbofan engine?
High Bypass turbofan engines use pneumatics (air) for starting the engines.
Why the starting torque of a dc series motor is high?
load is heavier so starting torque is requiredAnswerBecause the same current is passing through both the armature and field windings, the torque is proportional to the squareof the current. Since the starting current is alway high (no back emf), the torque will be very high indeed.
What is mean by back up torque and when it applies?
Torque backup is generally applicable to low speed diesel engines which are primarily used for high torque applications like tractors and off highway vehicles. Generally torque backup is expressed in percentage Torque backup = (max Torque - rated speed torque)/rated speed torque in % This generally means how much the engine can be loaded when its rpm drops to max torque rpm. Usually all OEM try to give maximum backup torque from their engines. But it is limited by volumetric efficiency at lower rpm for NA engines and for TC engines it can be more.
Why do you have different types of engines?
Because different engines have different advantages. Steam engines can be run from anything that burns, but are big and heavy. 2-stroke (gasoline) engines has great power-to-weight ratio, but tend to use a lot of fuel and create a lot of emissions. 4-stroke Diesel engines tend to run rougher and don't rev as high as gasoline engines but are more fuel efficient and often have more torque.
Which motor has high starting tourque?
Series motors have the highest starting torque. The torque is proportional to the square of the current, and the starting current is so high it has to be limited by a resistor called a rheostat. Series motos are used mainly on trams and trolley buses.
What has the author E Sherman Gould written?
E. Sherman Gould has written: 'The arithmetic of the steam engine' -- subject(s): Steam, Steam-engines 'High masonry dams' -- subject(s): Dams
Why ac motors are not used in railways?
Ac motor has a low starting torque so that DC series motor used in railways cause DC motor has high starting torque
What is the use of double cage rotor in induction motor?
to obtain high starting torque
Which of the following Dc motor is suitable for high starting torque?
capacitor start motor
Why diesel engines are used in trucks?
Diesel produces high levels of torque at lower RPMs, making it much more ideal for pulling heavy loads.
