The type of distortion that is caused by driving the transistor close to cutoff is called
A) linear distortion B) nonlinear distortion
C) notoch distortion D) crossover distortion
B
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A type of conduit body with a 90° connector and the cover on the left is a _____.
a. Type LL b. Type LB c. Type LR d. Type LT
Backing strips used in root passes are usually made from a piece of metal that is ____ thick and ____ wide.
A. 1 inch, 1/4 inch B. 1/2 inch, 2 inches C. 1/2 inch, 1 inch D. 1/4 inch, 1 inch
Most scientists agree that the greatest danger we have from our food supply is that of food spoilage and the ingestion of bacteria
Indicate whether the statement is true or false
During an AC performance test, an R-134a air conditioning system has a measured center duct outlet temperature of 41 degrees F. The manifold gage set shows low side pressure between 21-35 psi. The high side pressure ranges from 175-210psi. Intermittantly, the duct outlet temperature will rise to 60 degrees F and the low side gage show a vacuum when this happens. Shop Temperature is 72 degrees F. What is most likely the cause?
a. The system contains moisture causing a restriction in the TXV b. The system contains air with the refrigerant c. The TXV is defective and allowing too much refrigerant to flow d. The system is operating normally