Home→ Rectifiers and Converters →Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required ?

A rotary converter operates at a__________?
In a rotary converter armature currents are__________?
In which of the following appUcations, direct current is absolutely essential ?
In a mercury arc rectifier positive ions are attracted towards__________?
In which of the following equipment direct current is needed ?
Which of the following AC. motors is usually used in large motor-generator sets?
In a rotary converter I2R losses as compared to a D.C. generator of the same size will be__________?
The potential drop in the arc, in a mercury arc rectifier, varies__________?
Mercury, in arc rectifiers, is chosen for cathode because__________?
Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of __________?
The cathdde voltage drop, in a mercury arc rectifier, is due to__________?
To produce cathode spot in a mercury arc rectifier__________?
The advantage of mercury arc rectifier is that__________?
The internal efficiency of a mercury arc rectifier depends on__________?
In a mercury pool rectifier, the voltage drop across its electrodes__________?
If cathode and anode connections in a mercury arc rectifier are inter changed__________?
The voltage drop at anode, in a mercury arc rectifier is due to__________?
The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following__________?
The ionization potential of mercury is approximately__________?
In a glass bulb mercury arc rectifier the maximum current rating is restricted to__________?
In a mercury arc rectifier characteristic blue luminosity is due to__________?
When a rectifier is loaded which of the following voltage drops take place ?
Which of the following mercury arc rectifier will deliver least undulating current?
In a three-phase mercury arc rectifiers each anode conducts for__________?
In a mercury arc rectifier________ flow from anode to cathode
A mercury arc rectifier possesses __________ regulation characteristics
In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode.
On which of the following factors the number of phases for which a rectifier should be designed depend ?
It is the_________of the transformer on which the magnitude of angle of overlap depends?
In a phase-shift control method, the phase shift between anode and grid voltages can be achieved by means of__________?
In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as__________?
Which of the following statement is incorrect ?
In phase-shift control method the control is carried out by varying the of grid voltage
The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ?
Copper oxide rectifier is usually designed not to operate above__________?
Ageing of a selenium rectifier may change the output voltage by__________?
The efficiency of the copper oxide rectifier seldom exceeds__________?
Selenium rectifier can be operated at temperatures as high as__________?
The applications of selenium rectifiers are usually limited to potential of__________?
In selenium rectifiers efficiencies ranging from ___ to _______ percent are attainable?
A commutating rectifier consists of commutator driven by__________?
In a mercury arc rectifier, the anode is usually made of__________?
Which of the following rectifiers have been used extensively in supplying direct current for electroplating ?
Which of the following is the loss within the mercury arc rectifier chamber ?
Which of the following rectifiers are primarily used for charging of low voltage batteries from AC supply ?
The efficiency of an electrolytic rectifier is nearly__________?
The ignited or auxiliary anode in mercury arc rectifier is made of__________?

Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required ?

A. Motor-generator set
B. Motor converter
C. Rotary converter
D. Mercury arc rectifier

Correct Answer: Mercury arc rectifier ✔

Last Updated: December 17, 2018