__________ often use cryptography to protect the transmitted data from eavesdropping
A. Authentication
B. Countermeasures
C. Confidentiality
D. Integrity
B
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What are potential uses of wireless multicasting in a realistic set up?
What will be an ideal response?
The first step in all cable pulls is to _____.
a. lubricate the cable b. measure runs and establish communications between both ends of the pull c. prepare the cable ends d. install fish tape
Technician A says that the Lepelletier design of compound planetary gear set connects a simple planetary gear set to a Simpson gear set. Technician B says that the Lepelletier design connects a Simpson to a Ravigneaux. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Liquid ethanol is a flammable fluid and can release vapors that form explosive mixtures at temperatures above its flash point at 16.6°C. In a chemical plant, liquid ethanol (cp = 2.44 kJ/kg•K,?? = 789 kg/ m3) is being transported in a pipe with an inside diameter of 5 cm. The pipe is located in a hot area with the presence of an ignition source, where an estimated 20 kW of heat is added to the ethanol. Your task as an engineer is to design a pumping system to transport the ethanol safely and to prevent fire hazard. If the inlet temperature of the ethanol is 10°C, determine the volume flow rate that is necessary to keep the temperature of the ethanol in the pipe below its flash point.
