How much time should it take the ½ ft3 to turn per revolution if a furnace is using 142.8 ft/hr3 of gas?
A) 25.2 seconds per revolution B) 12.6 seconds per revolution
C) 50.4 seconds per revolution D) 52.4 seconds per revolution
B
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Oxyfuel welding is most typically used to fasten larger pieces of metals together.
Answer the following statement true (T) or false (F)
Technician A says that a cracked exhaust manifold can affect engine operation. Technician B says that a leaking lower intake manifold gasket could cause a vacuum leak. Which technician is correct?
A) Technician A B) Technician B C) Both Technicians D) Neither Technician
Technician A says a pull to the right during braking could be caused by a defective metering valve. Technician B says a pull to the left could be caused by a defective proportioning valve. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Which of these terms is a measure of the actual on-time measured in milliseconds?
A) Frequency B) Amplitude C) Period D) Pulse width