5. Which of the following statements regarding all overhead valve engines is true?
O A. The two-stroke cycle is what powers them.
O B. They use the camshaft to close valves.
OC. They use an overhead camshaft.
O D. Their valves are located in the cylinder head.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0