Busbar Protection | Busbar Protection Objective Type Questions and answers


16.  The voltage of a particular bus can be controlled by controlling the


   A. Active power of the bus

   B. Reactive power of the bus

   C. Phase angle

   D. Both A and B


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B. Reactive power of the bus

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17.  In a power system the maximum number of buses are


   A. Generator buses

   B. Load buses

   C. Slack buses

   D. P-V buses


✔ View Answer


B. Load buses

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18.  Load bus is specified by


   A. P and V

   B. P and δ

   C. P and |V|

   D. P and Q


✔ View Answer


D. P and Q

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19.  At slacks bus, which one of the following combinations of variables is specified?


   A. |V|, δ

   B. P, Q

   C. P, |V|

   D. Q, |V|


✔ View Answer


A. |V|, δ

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20.  YBUS as used in load flow study, and ZBUS as used for short circuit study are:


   A. The same

   B. Inverse of each other

   C. Are not related to each other

   D. None of the above


✔ View Answer


C.Are not related to each other

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