Switch Gear And Protection Set 6

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This set of Switch Gear and Protection Multiple Choice Questions & Answers (MCQs) focuses on Switch Gear And Protection Set 6

Q1 | Which component ensures the safety of the line from damage?
Q2 | The tripping circuit is_
Q3 | Plug setting of a electromagnetic relay can be altered by varying
Q4 | the most efficient torque producing actuating structure for theinduction type relays is
Q5 | If the power factor is zero, the active recovery voltage will be
Q6 | Which of the following is not a part of the circuit breaker?
Q7 | Which of the following circuit breaker will produce the least arc energy?
Q8 | For a circuit breaker 'break time' is
Q9 | The breaking capacity of a circuit breaker in MVA (3 phase) is given by
Q10 | Which relay is used for feeders?
Q11 | Which of the following relays is used on transformers?
Q12 | MHO relay is used for
Q13 | Merz-price protection is used on
Q14 | The values of fault current depend on
Q15 | The advantage of neutral earthling is
Q16 | The over-voltage surges in power systems may be caused by
Q17 | The protection against over-voltage due to lightening is provided by
Q18 | Which of the following is a conducting medium for electric current ?
Q19 | In circuit-breakers the contact space is ionized by
Q20 | Which of the following are air-break switching devices ?
Q21 | Which of the following statement about SF6 gas is incorrect?
Q22 | SF6 gas is transported in
Q23 | duringarc extinction SF6 gas
Q24 | Dielectric strength of SF6 is
Q25 | Which of the following is the demerit of SF6 circuit breakers?