|
Mercury, in arc rectifiers, is chosen for ___
|
|
0
|
133
|
October 28, 2021
|
|
Normally, which of the following is used, when ___
|
|
0
|
103
|
October 28, 2021
|
|
Which of the following are the applications of D.C. system?
|
|
0
|
124
|
October 28, 2021
|
|
A commutating rectifier consists of ___
|
|
0
|
139
|
October 28, 2021
|
|
The metal rectifiers are preferred to valve rectifiers due to which of the following advantages?
|
|
0
|
121
|
October 28, 2021
|
|
Which of the following rectifiers are primarily used for charging of ___
|
|
0
|
127
|
October 28, 2021
|
|
Choose incorrect statement from the following?
|
|
0
|
138
|
October 28, 2021
|
|
On which of the following factors the number of phases for ___
|
|
0
|
121
|
October 28, 2021
|
|
To produce cathode spot in a ___
|
|
0
|
128
|
October 28, 2021
|
|
Which of the following rectifiers have been used extensively in ___
|
|
0
|
133
|
October 28, 2021
|
|
In a phase-shift control method, the phase shift, between anode and ___
|
|
0
|
149
|
October 28, 2021
|
|
In a mercury arc rectifier ___
|
|
0
|
143
|
October 28, 2021
|
|
If cathode and anode connections in a mercury arc rectifier are ___
|
|
0
|
132
|
October 28, 2021
|
|
In a rotary converter I2R losses as compared to a D.C. generator of ___
|
|
0
|
135
|
October 28, 2021
|
|
Which of the following metals is generally manufactured by electrolysis process?
|
|
0
|
150
|
October 28, 2021
|
|
The applications of selenium rectifiers are usually limited to ___
|
|
0
|
138
|
October 28, 2021
|
|
In phase-shift control method the control is carried out by ___
|
|
0
|
115
|
October 28, 2021
|
|
In a glass bulb mercury arc rectifier the maximum current rating is ___
|
|
0
|
143
|
October 28, 2021
|
|
The internal efficiency of a mercury arc rectifier depends on ___
|
|
0
|
170
|
October 28, 2021
|
|
In which of the following equipment direct current is needed?
|
|
0
|
139
|
October 28, 2021
|
|
Which of the following is reversible in action?
|
|
0
|
165
|
October 28, 2021
|
|
The ignited or auxiliary anode in mercury arc rectifier is ___
|
|
0
|
134
|
October 28, 2021
|
|
Ageing of a selenium rectifier may change the ___
|
|
0
|
162
|
October 28, 2021
|
|
In mercury arc rectifiers having grid, the arc can be ___
|
|
0
|
140
|
October 28, 2021
|
|
Which of the following mercury arc rectifier will deliver least undulating current?
|
|
0
|
128
|
October 28, 2021
|
|
The voltage drop at anode, in a mercury arc rectifier is ___
|
|
0
|
100
|
October 28, 2021
|
|
In a rotary converter armature currents are ___
|
|
0
|
165
|
October 28, 2021
|
|
A rotary converter combines the ___
|
|
0
|
150
|
October 28, 2021
|
|
In a mercury arc rectifier, the anode is ___
|
|
0
|
132
|
October 28, 2021
|
|
In selenium rectifiers efficiencies ranging from ___
|
|
0
|
111
|
October 28, 2021
|