Two technicians are discussing safety shoes. Technician A says they should have thin canvas uppers because they are more flexible and easier to walk in. Technician B says the soles must be acid resistant and slip resistant, and the uppers must be made from a puncture-proof material such as leather. Who is correct? Group of answer choices

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Fluids at rest possess no flow energy. a)- true b)- false

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