10. What does a profile of a river from its headwaters to its mouth typically show?

a. an increase in gradient downstream
b. a straight-line profile reflecting a constant decrease in gradient
c. an abrupt increase followed by a gradual decrease
d. a curved shape that flattens out downstream

What precautions should you take to prevent injuries when dealing with heavy loads?

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

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options