|
In a mercury arc rectifier characteristic blue luminosity is ___
|
|
0
|
136
|
October 28, 2021
|
|
Glass rectifiers are usually made into units capable of ___
|
|
0
|
105
|
October 28, 2021
|
|
Which of the following A.C. motors is usually used in large motor-generator sets?
|
|
0
|
149
|
October 28, 2021
|
|
A rotary converter is a single machine with ___
|
|
0
|
119
|
October 28, 2021
|
|
The metal rectifiers, as compared to mercury arc ___
|
|
0
|
132
|
October 28, 2021
|
|
Selenium rectifier can be operated at temperatures as ___
|
|
0
|
119
|
October 28, 2021
|
|
In a three-phase mercury arc rectifiers each ___
|
|
0
|
107
|
October 28, 2021
|
|
The voltage drop between the anode and cathode, of ___
|
|
0
|
91
|
October 28, 2021
|
|
In which of the following applications, direct current is absolutely essential?
|
|
0
|
147
|
October 28, 2021
|
|
A synchronous converter can be ___
|
|
0
|
134
|
October 28, 2021
|
|
Which of the following is the loss within the mercury arc rectifier chamber?
|
|
0
|
128
|
October 28, 2021
|
|
Copper oxide rectifier is usually designed not to ___
|
|
0
|
105
|
October 28, 2021
|
|
It is the ___ of the transformer on which the magnitude of angle of overlap
|
|
0
|
110
|
October 28, 2021
|
|
In a mercury pool rectifier the voltage drop across its ___
|
|
0
|
116
|
October 28, 2021
|
|
The potential drop in the arc, in ___
|
|
0
|
98
|
October 28, 2021
|
|
A rotary converter operates at ___
|
|
0
|
305
|
October 28, 2021
|
|
In a single phase rotary converter the number of ___
|
|
0
|
180
|
October 28, 2021
|
|
The efficiency of an electrolytic rectifier is ___
|
|
0
|
106
|
October 28, 2021
|
|
The efficiency of the copper oxide rectifier seldom ___
|
|
0
|
145
|
October 28, 2021
|
|
A mercury arc rectifier possesses ___
|
|
0
|
105
|
October 28, 2021
|
|
The advantage of mercury arc rectifier is ___
|
|
0
|
101
|
October 28, 2021
|
|
The ionization potential of mercury is ___
|
|
0
|
135
|
October 28, 2021
|
|
A rotary converter in general construction and design, is ___
|
|
0
|
112
|
October 28, 2021
|