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A type of circuit breaker which can work up to 15 kV and the rupturing capacity of that circuit breaker is 2500 MVA. Determine the type of circuit breaker mentioned in the context and shown in the given figure.
It is a circuit breaker in which the heat generated by the high current in the medium between the contacts is sufficient to ionize the medium. Which medium is used in the circuit breaker?
The voltage appearing across the contacts after opening of the circuit breaker is called______voltage.
A circuit breaker essentially consists of fixed and moving contacts. What are they called? 
Which of the following appears across the circuit breaker contacts immediately after the arc interruption at current zero?
A circuit breaker is a piece of equipment which can (i) make or break a circuit either manually or by remote control under normal conditions. (ii) break a circuit automatically under fault conditions. (iii) make a circuit either manually or by remote control under fault conditions Choose the correct answer. 
How many places of arcing can possible?
Arcing horns are used for ______________
In a mess Pasta, Pizza, Burger, Lasagne, Nachos, Tortilla and Falafel are made for snacks from Monday to Sunday with the week starting on Monday. Pasta is made on the last day. Nachos are made in middle of the week. Tortilla and Pizza are made between Thursday and Sunday. Lasagne is made on Tuesday. Tortilla is made just 2 days after Falafel. When is burger made?
In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :