Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? They do not require any voltage for filament heating None of the listed here Both of the listed here They are mechanically strong They do not require any voltage for filament heating None of the listed here Both of the listed here They are mechanically strong ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Synchronous motor Squirrel cage induction motor Any of the listed here Slip ring induction motor Synchronous motor Squirrel cage induction motor Any of the listed here Slip ring induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of 100 A at 100 V 500 A at 500 V 400 A at 400 V 300 A at 300 V 100 A at 100 V 500 A at 500 V 400 A at 400 V 300 A at 300 V ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The internal efficiency of a mercury arc rectifier depends on voltage and current current only voltage only r.m.s. value of current voltage and current current only voltage only r.m.s. value of current ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is reversible in action? Motor generator set Motor converter Rotary converter All of the listed here Motor generator set Motor converter Rotary converter All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a rotary converter armature currents are partly a.c. and partly d.c. None of the listed here a.c. only d.c. only partly a.c. and partly d.c. None of the listed here a.c. only d.c. only ANSWER DOWNLOAD EXAMIANS APP
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