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Consider the following statements for an induction furnace: 1. High-frequency current is generally used for the furnace working. 2. There is less loss of alloying elements due to oxidation. 3. Pronounced stirring action of molten metal occurs inside the furnace. 4. Slag cover is essential for the efficient working of the furnace. Which of the above statements are correct?

Consider the following statements for an induction furnace: 1. High-frequency current is generally used for the furnace working. 2. There is less loss of alloying elements due to oxidation. 3. Pronounced stirring action of molten metal occurs inside the furnace. 4. Slag cover is essential for the efficient working of the furnace. Which of the above statements are correct? Correct Answer 1, 2, 3 and 4

Induction Furnace:-

  1. An induction furnace uses alternating current passing through a coil to develop a magnetic field in the metal, and the resulting induced current results in a rapid heating and melting of the metal.
  2. The electromagnetic force field causes a mixing action to occur in the liquid metal.
  3. The metal does not come in direct contact with the heating elements, the environment in which melting takes place can be closely controlled.
  4. Induction furnace greatly decreases scale formation and can often be operated by one person.
  5. The furnace requires less maintenance than oil or gas-fired furnaces.
  6. In induction furnaces the stocks are passed through induction coils in the furnaces. Delivery to forging machine operator can be effected by slides or automatic handling equipment.
  7. Slag cover is essential for the efficient working of the furnace.

Related Questions

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Consider the following two C code segment. Y and X are one- and two-dimensional arrays of size n and n × n respectively, where 2 ≤ n ≤ 10. Assume that in both code segments, elements of y are initialized to 0 and each element X[i] [j] of array X is initialized to i + j. Further assume that when stored in main memory all elements of x are in same main memory page frame. Code segment 1:                 //initialize elements of y to 0                 //initialize elements X[i] [j] of X to i+j                       for (i = 0; i < n; i++)                                 Y[i] += X[0] [i]; Code Segment 2:                 //initialize elements of Y to 0                 //initialize elements X[i] [j] of X to i+j                        for (i = 0; i < n; i++)                                 Y[i] += X[i] [0]; Which of the following statements is/are correct? S1: Final contents of array Y will be same in both code segments S2: Elements of array X accessed inside the for loop shown in code segment 1 are contiguous in main memory S3: Elements of array X accessed inside the for loop shown in code segment 2 are contiguous in main memory
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1. There is no rationally justifiable method of induction.
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Choose the correct answer:
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Given the following Assertion 'A' and the Reason 'R'; the correct option is
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