Air is flowing in an insulated duct at a rate of 2 kg/sec. Air enters the duct at 40 oC and 8-kW of heat is added with a electric resistance heater. Find the exit temperature of air. (Cp=1.005 kJ/kgK) a) 44 b) 30 c) 54 d) 60

A cylindrical tank is required to contain a gage pressure 670 kPakPa. The tank is to be made of A516 grade 60 steel with a maximum allowable normal stress of 150 MPaMPa.

A PV battery system has an end-to-end efficiency of 77%. The system is used to run an all-AC load that is run only at night. The charge controller efficiency is 96% and the inverter efficiency is 85%.

A teenager was pulling a prank and placed a large stuffed penguin in the middle of a roadway. A driver is traveling on this level roadway and sees the penguin 525 feet ahead.

A payload is to be delivered by airdrop. The vertical velocity at landing has to be less than 7m/s. The total weight of the payload and parachute system is 400kg. Determine the minimum diameter of the open parachute, assuming a drag coefficient Cd 1.

A series circuit contains five resistors. The total voltage applied to the circuit is 120 V. Four resistors have voltage drops of 35 V, 28 V, 22 V, and 15 V. What is the voltage drop of the fifth resistor?

What is the definition of diameter pitch?

List two characteristics of computers.

Which of the following elements of the CIA triad refers to maintaining and assuring the accuracy of data over its life-cycle? Confidentiality Integrity Availability Authentication

According to the video, what are some of the effects of the increase in the use of automated tools for Loading Machine Operators? Check all that apply.

A gas flows through a one-inlet, one-exit control volume operating at steady state. Heat transfer at the rate takes place only at a location on the boundary where the temperature is Tb.