-The power output of the three phase machine is greater than the single phase machine. (TRUE/FALSE) 2-In thermocouple, when both the junctions are at the same temperature, the potential difference developed across both junction is zero. (TRUE/FALSE) 3-Due to decreased armature m.m.f., the armature reaction during load condition will increase and hence field flux will be distorted. (TRUE/FALSE) 4-While applying voltage in CRO, the grid is positive with respect to cathode. (TRUE/FALSE) 5-Losses in transformers are generally low and thus efficiency is high. (TRUE/FALSE)
-The power output of the three phase machine is greater than the single phase machine. (TRUE/FALSE) 2-In thermocouple, when both the junctions are at the same temperature, the potential difference developed across both junction is zero. (TRUE/FALSE) 3-Due to decreased armature m.m.f., the armature reaction during load condition will increase and hence field flux will be distorted. (TRUE/FALSE) 4-While applying voltage in CRO, the grid is positive with respect to cathode. (TRUE/FALSE) 5-Losses in transformers are generally low and thus efficiency is high. (TRUE/FALSE)
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.28MCQ
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Question
1-The power output of the three phase machine is greater than the single phase machine.
(TRUE/FALSE)
2-In thermocouple, when both the junctions are at the same temperature, the potential
difference developed across both junction is zero.
(TRUE/FALSE)
3-Due to decreased armature m.m.f., the armature reaction during load condition will increase
and hence field flux will be distorted. (TRUE/FALSE)
4-While applying voltage in CRO, the grid is positive with respect to cathode.
(TRUE/FALSE)
5-Losses in transformers are generally low and thus efficiency is high.
(TRUE/FALSE)
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