The queue did not completely clear after 30 second or after green signal was on. It took some time to discharge all the queue (queue discharge time). Estimate the following if flow during the green light is 2700 vpm with a speed of 50 mph.

(a) Queue discharge time.
(b) Maximum length of queue

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false