# Inter Connection of Three-Phase Sources and Loads MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Inter Connection of Three-Phase Sources and Loads”.

1. Each coil in three phase alternator has ________________ number of terminals.
a) 2
b) 4
c) 6
d) 8

2. In wye or star connection _____________ of the three phases are joined together within the alternator.
a) similar ends
b) opposite ends
c) one similar end, two opposite ends
d) one opposite end, two opposite ends

3. In a three phase alternator, there are __________ independent phase windings or coils.
a) 1
b) 2
c) 3
d) 4

4. The voltage between __________ and ___________ is called phase voltage.
a) line and line
b) line and reference
c) neutral point and reference
d) line and neutral point

5. Figure below represents three phases of an alternator. The phase voltage for the star connection among the options given below is?

a) VRY
b) VRN
c) VYB
d) VBR

6. In the Delta or Mesh connection, there will be __________ number of common terminals.
a) 1
b) 2
c) 3
d) 0

7. The voltage between ______________ is called line voltage.
a) line and neutral point
b) line and reference
c) line and line
d) neutral point and reference

8. In the figure shown below, what will be the line voltage?

a) VBR
b) VBN
c) VRN
d) VYN

9. The relation between line voltage and phase voltage in Delta or Mesh connection is?
a) Vphase > Vline
b) Vphase < Vline
c) Vphase = Vline
d) Vphase >= Vline

10. Which of the following voltage is a phase voltage in the delta connection?
a) VRN
b) VBR
c) VYN
d) VBN