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SI (Spark Ignition) engines are considered quantity governed because their power output and performance are primarily controlled by the amount of air-fuel mixture entering the combustion chamber. The throttle valve regulates this mixture, affecting engine speed and torque. The engine's operational efficiency is linked to the precise control of fuel and air, making it essential to manage these quantities to optimize performance and emissions. Thus, the engine's behavior is largely dictated by the quantity of fuel and air rather than the mixture's quality or combustion characteristics.
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Why si engines are quantity governed engines and ci engines are quality govrned?
All engine are whether CI or SI are quantity governed. what is quality governed?? You have discovered it or wht??
What are antiknock agents in SI engines?
Tetra-ethyl lead (phased out)Methylcyclopentadienyl manganese tricarbonyl (MMT)FerroceneIron pentacarbonylTolueneIsooctane
What are the advantages on SI engine?
Spark Ignition (SI) engines offer several advantages, including smoother operation due to their ability to run on a variety of fuels, such as gasoline. They typically provide better fuel efficiency at lower engine speeds and are capable of producing higher power outputs for a given engine size compared to diesel engines. Additionally, SI engines tend to have lower emissions of nitrogen oxides and particulate matter, making them more environmentally friendly. Their design also allows for easier maintenance and lower initial costs compared to some diesel alternatives.
What unit is power measured in?
The SI unit for power is the watt, which is equal to joules/second.The SI unit for power is the watt, which is equal to joules/second.The SI unit for power is the watt, which is equal to joules/second.The SI unit for power is the watt, which is equal to joules/second.
What is abstract quantity?
abstract quantity is an quantity of toughts
Why si engines are quantity governed engines and ci engines are quality govrned?
All engine are whether CI or SI are quantity governed. what is quality governed?? You have discovered it or wht??
What is the SI unit for quantity of radioactive materials?
The SI unit for quantity of radioactive materials is Becquerel.The becquerel (symbol Bq) is the SI-derived unit of radioactivity.One Bq is defined as the activity of a quantity of radioactive material in which one nucleus decays per second.
Name the physical quantity whose SI unit is JC-1Is it a scalar or a vector quantity?
The physical quantity with the SI unit JC^-1 is the electric permittivity. It is a scalar quantity because it describes the ability of a material to store and transmit electrical energy.
C is the SI unit for which derived quantity?
the coulomb
How many the SI unit of the quantity volume?
S2cmS2m
What are the types of combustion chambers in SI engines?
swirl
What is the si unit of quantity?
The SI unit of quantity is the mole, denoted by the symbol "mol". It is used to measure the amount of substance present in a system.
Why CI engines are used in trucks and other heavy vehicles but not why SI engine?
Compression ignition (CI) engines use diesel is as the fuel, while spark ignition (SI) engines use petrol. SI engines are lightweight and achieve high speeds while diesel CI engines although heavier and slower engines, are more robust and have a higher thermal efficiency. Their robust build (and fewer parts) makes diesel CI engines ideal for heavy machinery.
How fast does a 2008 Honda Civic Si Sedan go?
From 2007 on, the si was governed to 135 mph. In the 2006 si's there was no limiter so speeds of around 150mph were possible.
What is the physical quantity of area?
The physical quantity is simply called area. The official unit (in SI) is the square meter.
What is the physical quantity and SI unit of canned drinks?
The volume is measured in SI with litre (L) or millilitre (mL).
Is volume fundamental or derived quantity?
Volume is a derived quantity because it is calculated by multiplying three lengths together in the SI system of units. The SI base units for length are meters, so volume is expressed in cubic meters (m^3). It is not considered a fundamental quantity like length, mass, or time, which are base units in the SI system.
