What is the never repeat rule

A water jet strikes normal to a fixed plate. If diameter of the outlet of the nozzle is 8 cm, and velocity of water at the outlet is 10 m/s, calculate force required to keep the plate in place.

True or false Make sure all guard are in place and working at all times

What colour is best for radiative heat transfer? a. Black b. Brown c. Blue d. White

In a TDM communication example, 15 voice signals are badlimited to 5kHz and transmitted simultaneously using PAM. What is a preliminary estimate for the required system bandwidth? (a) 10 kHz (b) 75 kHz (c) 80 kHz (d) 160 kHz (e) None of the above.

One kg of ammonia in a piston-cylinder assembly, initially saturated liquid at 5 bar, is boiled at constant pressure to saturated vapor. Kinetic and potential energy changes are negligible.

Just getting to your class is enough for showing up. A) True B) False

A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.

A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.

A scientist who is evaluating an ancient human skeleton for signs of vitamin and nutrient deficiency is conducting:

Which of the following is required in order to make a protected left turn A. A left green arrow B. No oncoming traffic C. A left turn only lane D. A large enough gap