Power Electronics MCQs with answers PDF for Electrical Engineering test preparation. Includes Power Electronics MCQs PDF free download. Ideal for exams such as NTS, KPPSC, PPSC, FPSC, BPSC, SPSC, and MES.
Energy conversion in modern power electronic equipment works by ____ and ____.
A. Semiconductor device and transistors
B. Semiconductor device and power transistors
C. Conductor device and power transistors
D. All the aboveThe mercury vapor rectifier’s objective is:
A. Provides power to streetcars
B. Provides power to industrial motors
C. Provides power to electric railway
D. All the above_____ creates the mercury vapor rectifier in 1902.
A. Michele
B. Richard
C. Henry
D. Peter Cooper HewittThe maximum amount of current that a mercury vapor rectifier can handle is:
A. Zero
B. Much higher
C. Higher
D. LowerMercury occurs in a ____ condition in mercury vapor rectifiers.
A. Solid
B. Gaseous
C. Liquid
D. None of themA ____ type of tube is a mercury vapor rectifier.
A. Cold anode
B. Liquid filled
C. Warm cathode gas filled
D. Cold cathode gas filledDC current is produced from _____ using a mercury vapor rectifier.
A. High AC current
B. High voltage
C. Either a or b
D. Low voltageAn ______ rectifier is a mercury vapor rectifier.
A. Mechanical
B. Electronic
C. Electrical
D. CivilMercury arc valves is also called as:
A. Mercury arc rectifier
B. Mercury vapor
C. Mercury vapor rectifier
D. Both a and cWhat was the first electrical device with a high power ?
A. Transformers
B. Mercury arc valves
C. Thermistors
D. All the above