What is the difference between single-phase AC and three-phase AC voltage?
What will be an ideal response?
Single-phase AC has one sine wave and points where the system has no EMF in the system.Three-phase AC has three sine waves 120 degrees apart electrically. This results in a system that always has EMF working in the system and is thus more efficient. Another benefit of three-phase AC is the fact that neutrals are not needed due to the way the sine waves interact.
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Manuel sold his hogs that average 112 kilograms. How many pounds did the hogs average?
What will be an ideal response?
Technician A says that trailing arms run perpendicular to the center line of the chassis. Technician B says that trailing arms run parallel to the center line of the chassis. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
On the water-valve controlled system the flow of coolant through:
A. The radiator is restricted B. Though the heater core is restricted to increase temperature C. Through the heater core is restricted to decrease temperature D. The engine thermostat
The three-phase induction motor operates at synchronous speed.
Answer the following statement true (T) or false (F)