Transformers in which the primary and secondary voltages are 180 degrees out of phase are known as _____.
a. unlike-wound transformers
b. like-wound transformers
c. unequal transformers
d. step-up transformers
a. unlike-wound transformers
You might also like to view...
Liquid water, with a density of 62.4 lbm/ft3, flows with a volumetric flow rate of 1.25 ft3/s through a circular pipe with a diameter of 3 in. Determine the velocity and mass flow rate of the water.
Given: p= 1000 kg/m3, V = 8.5 m/s, D = 42.0 mm = 0.042 m What will be an ideal response?
A handheld power unit that can be used for cutting threads, driving hoists and winches, and operating large valves, is the _____.
a. beveler b. portable power drive c. nibbler d. cutoff machine
De los siguientes motores, un motor _____ es la MEJOR elección de instalación para una aplicación que necesita velocidades ajustables.
a. de CC b. de fase partida c. sincrónico d. de arranque con condensador
To use an ohmmeter, the tips of the test leads are first held together (short circuited) and the rheostat (variable resistor) is adjusted so that the meter pointer moves to the ____ of the scale and points to the 0 ohms mark.
a. left-hand end b. middle c. right-hand end d. bottom