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UP polytechnic Lecturer (EE) Quiz 17

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Question 1

In a nuclear power plant, moderator and control rods are employed to control the chain reaction of neutrons. How can the chain reaction be stopped?

Question 2

What is purpose of penstock in a hydropower plant?

Question 3

The total connected load is the sum of the continuous rating of the entire load connected to the system. The total connected load is:

Question 4

The application of load flow study is:

Question 5

An alternate has 20%, 25% and 5% positive, negative and zero sequence reactance’s. What is the value of neutral grounding reactance so that the fault current for single line to ground fault is equal to rated line current?

Question 6

For which of the following wiring the galvanised steel is used?

Question 7

Size of the Jacobian matrix is (k × k), that consists of 61 buses out of 61 buses, 20 are PV buses and rest are PQ and a slack bus. The value if ‘k’ is

Question 8

A string is made from two insulator discs of identical capacitance value C for a 22 kV, 50 Hz single phase overhead line insulation system. If the pin to earth capacitance is also C, then calculate the string efficiency?

Question 9

When the sinusoidal steady state current is called the symmetrical short circuit current, then the unidirectional transient component is called

Question 10

For a single machine infinite BUS system, if P_e = 2sinδ p.u. at δ = 30°, synchronizing power coefficient is ________.

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