Afour cylinder, four-stroke spark ignition engine with a total displacement of 2.4 l runs at 2500 rpm. the processes within each cylinder are modeled as an air-standard otto cycle. at the beginning of the compression process (state 1), the air is at 85 kpa, 290 k. the compression ratio is 9 and the maximum temperature in the cycle is 2000 k. determine:
a. net work output per cylinder (per cycle) kj]
b. energy added by the combustion process per cylinder [kj]
c. thermal efficiency
d. mean effective pressure
e. power output of engine [kw, horsepower

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10