Q. What is the temperature at which a phase transition from ferromagnetic to paramagnetic occurs?

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Q. What is the temperature at which a change from the anti-ferromagnetic phase to paramagnetic phase occurs?

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Q. The hysteresis loss in soft magnetic materials must be kept ______

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Q. The supermaloy primarily composed of ________________

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Q. Which of the following is an example of soft magnetic material?

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Q. What is the relative permeability of iron?

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Q. The heat treatment of alnico alloys at _____ results in phase separation.

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Q. What is the hysteresis loss of permalloy?

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Q. Which of the following is a property of a hard magnetic material?

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Q. A _____ cooling rate solidifies metallic glass made from iron- base alloys.

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Q. Which of the following is not a use of magnesium-manganese ferrites?

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Q. Yttrium-iron-garnet is used as microwave isolators in the ____ range.

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Q. What is the coercive force of high carbon steel?

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Q. What is the value of residual induction of alnico alloys?

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Q. Which of the following is a requirement for thermal insulation in materials?

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Q. How does moisture affect the thermal insulation of a body?

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Q. Which of the following is an example of organic insulating material?

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Q. An insulating material named 85% magnesia can be used up to temperatures of _______

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Q. An insulating material made from ______ is preferred for applications where vibration resistance is vital.

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Q. A cork insulation with a waterproof binder is used for _______ surfaces.

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