Technician A says that crossovers are used to block certain frequencies to allow each type of speaker to perform its job better. Technician B says that a high-pass filter is used to block high-frequency sounds being sent to large woofer speakers, and a low-pass filter blocks low-frequency sounds being sent to tweeters. Who is right?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A
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?What effect on the weld pool would speeding up or slowing down have?
A. ?The weld will move to the right and to the left. B. ?It has no effect on the weld pool, just on how the filler metal is added. C. ?It will make the weld pool larger or smaller. D. ?None of the above
Which type of glass has the higher coefficient of thermal expansion?
a. Ordinary glass b. Silica glass c. None of the above
Before disconnecting hydraulic lines, _____.
a. get approval from your supervisor b. turn off the equipment c. take a pressure reading d. relieve system pressure
Beef's quality grade is determined by the beef's age and degree of muscle content
Indicate whether the statement is true or false