Basic Electrical Engineering Delta Star Transformation Online Exam Quiz
Basic Electrical Engineering Delta Star Transformation GK Quiz. Question and Answers related to Basic Electrical Engineering Delta Star Transformation. MCQ (Multiple Choice Questions with answers about Basic Electrical Engineering Delta Star Transformation
If a 6 ohm, 2ohm and 4ohm resistor is connected in delta, find the equivalent star connection.
Options
A : 1ohm, 2ohm, 3ohm
B : 2ohm, 4ohm, 7ohm
C : 5ohm, 4ohm, 2ohm
D : 1ohm, 2ohm, 2/3ohm
The value of the 3 resistances when connected in star connection is_________
Options
A : 2.32ohm,1.22ohm, 4.54ohm
B : 3.55ohm, 4.33ohm, 5.67ohm
C : 2.78ohm, 1.67ohm, 0.83ohm
D : 4.53ohm, 6.66ohm, 1.23ohm
Find the equivalent star network.
Options
A : 2.3ohm, 2.3ohm, 2.3ohm
B : 1.2ohm, 1.2ohm, 1.2ohm
C : 3.3ohm, 3.3ohm, 3.3ohm
D : 4.5ohm, 4.5ohm, 4.5ohm
If a 4ohm, 3ohm and 2ohm resistor is connected in delta, find the equivalent star connection.
Options
A : 8/9ohm, 4/3ohm, 2/3ohm
B : 8/9ohm, 4/3ohm, 7/3ohm
C : 7/9ohm, 4/3ohm, 2/3ohm
D : 8/9ohm, 5/3ohm, 2/3ohm
Which, among the following is the right expression for converting from delta to star?
Options
A : R1=Ra*Rb/(Ra+Rb+Rc), R2=Rb*Rc/(Ra+Rb+Rc), R3=Rc*Ra/(Ra+Rb+Rc)
B : R1=Ra/(Ra+Rb+Rc), R2=Rb/(Ra+Rb+Rc), Rc=/(Ra+Rb+Rc)
C : R1=Ra*Rb*Rc/(Ra+Rb+Rc), R2=Ra*Rb/(Ra+Rb+Rc), R3=Ra/(Ra+Rb+Rc)
D : R1=Ra*Rb*Rc/(Ra+Rb+Rc), R2=Ra*Rb*Rc/(Ra+Rb+Rc), R3=Ra*Rb*Rc/(Ra+Rb+Rc)
Rab is the resistance between the terminals A and B, Rbc between B and C and Rca between C and A. These 3 resistors are connected in delta connection. After transforming to star, the resistance at A will be?
Options
A : Rab*Rac/(Rab+Rbc+Rca)
B : Rab/(Rab+Rbc+Rca)
C : Rbc*Rac/(Rab+Rbc+Rca)
D : Rac/(Rab+Rbc+Rca)
Rab is the resistance between the terminals A and B, Rbc between B and C and Rca between C and A. These 3 resistors are connected in delta connection. After transforming to star, the resistance at B will be?
Options
A : Rac/(Rab+Rbc+Rca)
B : Rab/(Rab+Rbc+Rca)
C : Rbc*Rab/(Rab+Rbc+Rca)
D : Rab/(Rab+Rbc+Rca)
Rab is the resistance between the terminals A and B, Rbc between B and C and Rca between C and A. These 3 resistors are connected in delta connection. After transforming to star, the resistance at C will be?
Options
A : Rac/(Rab+Rbc+Rca)
B : Rab/(Rab+Rbc+Rca)
C : Rbc*Rac/(Rab+Rbc+Rca)
D : Rab/(Rab+Rbc+Rca)
Star connection is also known as__________
Options
A : Y-connection
B : Mesh connection
C : Either Y-connection or mesh connection
D : Neither Y-connection nor mesh connection
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