Technician A says that automotive air-conditioning refrigerants can be vented into the air if a recovery machine is not available. Technician B says that used automotive air-conditioning oils are considered hazardous. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
B
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Answer the following:
(a) Do you recall any recent event that is an example of denial of service? (b) Can denial of service (DoS) be more effective if you have information about the traffic? Explain clearly.
A three-phase, 480 V, six-pole, 60 Hz, induction motor is driving a constant torque load of 80 Nm. The parameters of the motor are:
a. Calculate the magnitude of the injected voltage that would reduce the motor
speed to 800 rpm.
b. Calculate the power received by the injected voltage source.
c. Compute the starting current and the starting torque with the injected voltage.
The distribution transformers used in industrial plants or network substations for three-wire secondary systems are equipped with three low-voltage ____________________ and the series connection is made inside the tank.
Fill in the blank(s) with the appropriate word(s).
Improperly cooked hamburger containing E. coli bacteria can cause food poisoning
Indicate whether the statement is true or false