The majority of useful work done by steam in a power plant occurs _____.
a. on the steam side of the loop
b. in the boiler
c. between the turbine and the condenser
d. between the boiler feedwater pump and the boiler
a. on the steam side of the loop
You might also like to view...
In the accompanying figure, d = 5 and e = 12. Find x.
A. 5 B. 8 C. 9 D. 13
Performance is presumed to occur before satisfaction
Indicate whether the statement is true or false.
A 220 V, dc series motor has an armature current of 86 A, armature resistance of 0.2 ?, and a field resistance of 0.1 ?. The terminal voltage of the motor can be adjusted by means of solid-state devices. Ignore the field saturation.
a. When the motor runs at 600 rpm, the armature current is 20 A. A 0.1 ? resistance is added in shunt to the field windings. If the load torque remains constant, calculate the speed of the motor. b. The resistance in shunt of the field windings is removed. The motor is used to lower the same mechanical torque described in (a) by a countercurrent braking method. The desired speed in the countercurrent braking is 10 rpm. The braking current is twice the rated value. Calculate the armature voltage of the motor.
The substance used to compare the specific gravity of liquids is:
A) Air. B) Ozone. C) Water. D) Carbon dioxide.