Self-contained equipment normally plugs into either a 120-V or 230-V electrical outlet.
Answer the following statement true (T) or false (F)
True
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A(n) ____ is a quantity measurement of electrons.
a. volt b. ohm c. ampere d. coulomb
bipolar BLDC motor is used to drive a unidirectional torque of 300 Nm. The voltage of the dc source is 400 V, k? = 1.0 Vs, and the armature resistance of the motor is 1.0 ?. Compute the modulation factor for the following cases:
a. Motor operation at 600 rpm b. Holding c. Plugging at 300 rpm in the reverse direction Also, compute the armature current in all of the above cases.
When connecting a recovery system for push-pull liquid recovery, the inlet of the recovery unit is connected to:
A) The suction service valve on the system. B) The vapor valve on the refrigerant recovery cylinder. C) The liquid valve on the refrigerant recovery cylinder. D) The king valve on the system.
Carry the answer to three decimal places. The weight of a spool of wire is 27.11 pounds. The spool weighs 3.2 pounds. Find the cost of the wire per pound if the cost of the spool of wire is $74.44. Express the answer to the nearer tenth of a cent.
Fill in the blank(s) with the appropriate word(s).