50 50 40 40 Petrol Best Fit Weighted CO2 Emmisions Diesel Petrol Diesel Best Fit 30 50 о ° 8 о 20 20 о 0 0 CO2 Weighted Percentage 10 0 о -10 0 10 20 30 50 60 50 40 40 Car Position

٩:٥٢ ص KOREK TELECOMIKOREK Asiacell DIZVA ۲۳ docs.google.com How many cylinders in the engine .uses this crankshaft Aj 4 5 O 7 O 3 8 6 10 O !

IC ENGINE 13. Specify the main emission form multi-cylinder passenger car engine how is the air-fuel ratio controlledso as to reduce emissions? (please typeable, handwriting gets in the way)

HWAC ENGG533

Q3 List the main components of the internal combustion engine.

Which of the following statements best describe for a typical diatomic molecule of an ideal gas eg. N2 at room temperature (300k)a. the spacing between translational levels is less than KbTb. the spacing between rotational levels is less than KbTc. the spacing between vocational levels is less than KbTd. the spacing between the ground and first excited electronic states is less than kbT.e. all of the abovef. none of the aboveg. the first and third answerh. the first and second answer

intake valve v) vi) intake compression How Tuel injector power lo egiteqo190 the number of molecules in the cylinder the internal energy of the gas; the work done on or by the gas; the thermal energy exchanged with the environment. exnaust vaive The diagrams show the cylinder of a petrol engine in 4 stages. Petrol vapour and air are drawn into the cylinder, The mixture is then squeezed together, and then exploded by a spark. The explosion pushes down the piston. The exhaust gases are then expelled from the cylinder. pril Use the first law of thermodynamics to analyse the energy changes during the process. At each stage explain what happens to the gas exhaust 0101

MECT361 Mechatronics Components and Instrumentation PLEASE GIVE ME THE REFRENCE I Will get zero if you didn't put the refrence

Gas dynamics

QUESTIONS ABOUT REFRIGERANTS Q8/ Choose True or False to answer the following: 1) The natural ice and a mixture of ice and salt were the first refrigerants. A. True B. False 2) R-134a gas is similar to R-152a in belonging to the hydrocarbon refrigerant groups A. True B. False 3) The inorganic refrigerant R-729 were exclusively used before the introduction of halo-carbon refrigerants A. True B. False 4) R410A, also known as propane A. True B. False 5) The brines commonly used are calcium chloride (CaC12) A. True B. False