101. Match the items of List-I with their applications given in List-II, and choose the correct answer from the codes given above the lists:
     

     List-I (Items)	List-II (Applications)
     A.Tungsten	1. Commutator
     B. Lead-tin alloy	2. Transformer
     C. Mineral oil	3.Fuse
     D. Mica	4. Lamp filament
     	5. Heating element

1. 1. A B C D
      1 2 3 4

   
   
   

   2. A B C D
      5 4 2 3

   
   
   

   3. A B C D
      4 3 2 1

   
   
   

   4. A B C D
      4 5 3 2

   
   
   

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   List-I		List-II
   * Tungsten	→	Lamp filament
   * Lead tin alloy	→	Fuse
   * Mineral oil	→	Transformer
   * Mica	→	Commutator

   Correct Option: C

   List-I		List-II
   * Tungsten	→	Lamp filament
   * Lead tin alloy	→	Fuse
   * Mineral oil	→	Transformer
   * Mica	→	Commutator

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102. Which of the following is not an example of electrical engineering material?

1. 1. Superconductor

   
   
   

   2. Mica and ferrite

   
   
   

   3. Cernet

   
   
   

   4. Aluminium doped silicon

   
   
   

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   Cernet is not an example of electrical engineering material.

   Correct Option: C

   Cernet is not an example of electrical engineering material.

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103. In a photostat machine, the drum is made of:

1. 1. salenium coating

   
   
   

   2. silicon coating

   
   
   

   3. cadmium coating

   
   
   

   4. zircon coating

   
   
   

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   In a photostat machine, the drum is made of selenium coating.

   Correct Option: A

   In a photostat machine, the drum is made of selenium coating.

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104. Activation energy is the potential energy that brings:

1. 1. unstable material into metastable state

   
   
   

   2. unstable material into stable state

   
   
   

   3. metastable material into stable state

   
   
   

   4. stable material into metastable state

   
   
   

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   NA

   Correct Option: A

   NA

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105. A member of ceramic family is:

1. 1. bainite

   
   
   

   2. garnet

   
   
   

   3. LDPE

   
   
   

   4. high speed steel

   
   
   

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   Garnet is a member of ceramic family.

   Correct Option: B

   Garnet is a member of ceramic family.

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