A two-phase system is produced by having an alternator with two sets of coils wound ____ degrees apart.
a. 60
b. 90
c. 120
d. 150
b. 90
You might also like to view...
Reactive power is always _____.
a. equal to true power b. 90° out of phase with true power c. measured in ohms d. responsible for performing most of the work in a circuit 17. If the time for one cycle is 0.1 second, the frequency is _____.
Technician A says that a good relay should measure between 60 and 100 ohms across the coil terminals. Technician B says that OL should be displayed on an ohmmeter when touching terminals 30 and 87. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Which of the following processes are most apt to encourage good soil aeration?
A) creation of more macropores B) root respiration C) organic matter decomposition D) diffusion of oxygen from the soil to the atmosphere E) reaction of oxygen with organic matter
Ultra-low-sulfur diesel fuel has how much sulfur content?
A) 500 PPM B) 50 PPM C) 15 PPM D) 1500 PPM