What is the ideal dc output voltage of a capacitor input filter?
AThe peak value of the rectified voltage
BThe rms value of the rectified voltage
CThe average value of the rectified voltage
DThe peak to peak value of the rectified voltage N -.
Electrical Engineering · Question Bank
Converters & Rectifiers
30 of 59 questions match · page 2 of 2. Answer in your head first, then check the solution.
What is an SCR (silicon-controlled rectifier)?
AIt is a unijunction device
BIt is a device with three junctions
CIt is a device with four junctions
DIt is a device with two junctions
What is the advantage of the mercury arc rectifiers?
AIt is noiseless
BIt has high efficiency
CIt responds quickly to varying load demands
DAll of these
Which one is true about a rotary converter?
AIt has one armature and one field
BIt has two armatures and one field
CIt has one armature and two fields
DIt has one armature and no field
In mercury arc rectifiers, the anode is usually made from which of the following materials?
AGraphite
BCopper
CAluminum
DTungsten
When a 60 Hz sinusoidal voltage is applied to the input of a full wave rectifier, the output frequency is how much?
A30 Hz
B120 Hz
C60 Hz
D0 Hz
What is the reason why the \(I^2R\) losses in a synchronous converter are less than those of a dc generator of the same size?
AThe ac and dc components of the armature current partly neutralize each other
BCyclic fluctuations have low frequency
COperating speed is low
DDC currents are negligible
If you are checking a 60 Hz full wave bridge type rectifier and observe that the output has a 60 Hz ripple, what does it mean?
AThe transformer secondary is shorted
BThere is an open diode
CThe filter capacitor is leaky
DThe circuit is working properly
Which one is an essential requirement of the anode material in a mercury arc rectifier?
AIt should be light in weight
BIt should be cheaper in cost
CIt should not be wetted by mercury
DAll of these
In mercury arc rectifier, what is the usage of mercury?
AIt is used for the ionization medium
BIt is used as electron accelerator
CIt is used as a conducting medium
DIt is used as a cathode
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