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(B) Select the correct answer for the alternatives given 1- A shunt generator supplies 445 A at 250 V. The resistances of shunt field and armature are 502 and 0.025 respectively. The voltage drop due to the armature resistance is a) 5V, b) 11.25V 2- No load current in a transformer c) 22.5V, d)25V a)-lags behind the voltage by about 75° c)--leads the voltage by about 75° b)-lags behind the voltage by about 15° c)-leads the voltage by about 15° 3-A 220V shunt motor develops a torque of 108 Nm at an armature current of 20 A. what is the developed torque when the armature current is 10 A? a) 81 Nm. b) 54 Nm. c) 216 N.m., d) 45 N.m 4- In transformer,the kVA at maximum efficiency is equal to full a) PL Peu b) [2 c) Peu Pl load kVA multiplied by P Peu 5-Which type of the transformers has parts of the winding is common to both the primary and secondary circuit? a) Power transformer c) Current transformer b) Auto-transformer. d) Matching transformer

(B) Select the correct answer for the alternatives given 1- A shunt generator supplies 445 A at 250 V. The resistances of shunt field and armature are 502 and 0.025 respectively. The voltage drop due to the armature resistance is a) 5V, b) 11.25V 2- No load current in a transformer c) 22.5V, d)25V a)-lags behind the voltage by about 75° c)--leads the voltage by about 75° b)-lags behind the voltage by about 15° c)-leads the voltage by about 15° 3-A 220V shunt motor develops a torque of 108 Nm at an armature current of 20 A. what is the developed torque when the armature current is 10 A? a) 81 Nm. b) 54 Nm. c) 216 N.m., d) 45 N.m 4- In transformer,the kVA at maximum efficiency is equal to full a) PL Peu b) [2 c) Peu Pl load kVA multiplied by P Peu 5-Which type of the transformers has parts of the winding is common to both the primary and secondary circuit? a) Power transformer c) Current transformer b) Auto-transformer. d) Matching transformer

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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(B) Select the correct answer for the alternatives given 1- A shunt generator supplies 445 A at 250 V. The resistances of shunt field and armature are 502 and 0.025 respectively. The voltage drop due to the armature resistance is a) 5V, b) 11.25V 2- No load current in a transformer c) 22.5V, d)25V a)-lags behind the voltage by about 75° c)--leads the voltage by about 75° b)-lags behind the voltage by about 15° c)-leads the voltage by about 15° 3-A 220V shunt motor develops a torque of 108 Nm at an armature current of 20 A. what is the developed torque when the armature current is 10 A? a) 81 Nm. b) 54 Nm. c) 216 N.m., d) 45 N.m 4- In transformer,the kVA at maximum efficiency is equal to full a) PL Peu b) [2 c) Peu Pl load kVA multiplied by P Peu 5-Which type of the transformers has parts of the winding is common to both the primary and secondary circuit? a) Power transformer c) Current transformer b) Auto-transformer. d) Matching transformer
Transcribed Image Text:(B) Select the correct answer for the alternatives given 1- A shunt generator supplies 445 A at 250 V. The resistances of shunt field and armature are 502 and 0.025 respectively. The voltage drop due to the armature resistance is a) 5V, b) 11.25V 2- No load current in a transformer c) 22.5V, d)25V a)-lags behind the voltage by about 75° c)--leads the voltage by about 75° b)-lags behind the voltage by about 15° c)-leads the voltage by about 15° 3-A 220V shunt motor develops a torque of 108 Nm at an armature current of 20 A. what is the developed torque when the armature current is 10 A? a) 81 Nm. b) 54 Nm. c) 216 N.m., d) 45 N.m 4- In transformer,the kVA at maximum efficiency is equal to full a) PL Peu b) [2 c) Peu Pl load kVA multiplied by P Peu 5-Which type of the transformers has parts of the winding is common to both the primary and secondary circuit? a) Power transformer c) Current transformer b) Auto-transformer. d) Matching transformer
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