Questions

Multiple-choice questions you can practise one by one. Open a question, tap an answer and see at once whether it is right. For a random set, try Quick practice.

941 questions

• Which ceramic material is commonly used in overhead-line insulators?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Which insulating material is obtained naturally in fibrous form and was historically used in electrical insulation?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Mica is commonly used for insulation in?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Mica is particularly useful in electrical equipment because it has?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Silicone resins are valued in electrical applications mainly for their?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Melamine-based materials are generally classified as?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Bakelite is commonly used in electrical equipment for making?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Bakelite is a type of?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Epoxy resin is commonly used in electrical engineering for?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Polystyrene is a type of?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Polyethylene is commonly used as an insulating material in?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• PVC is commonly used for insulation of?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• What is the full form of PVC?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Which of the following is a major concern associated with traditional Pyranol-type PCB insulating liquids?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Pyranol is associated with which type of electrical insulating material?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Which liquid is traditionally used for insulation and cooling in oil-filled transformers?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Which property is desirable in transformer insulating oil?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Transformer oil also helps in?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• What is the main electrical purpose of transformer oil?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy

• Which property makes dry air useful as an electrical insulating medium?

  Electrical Engineering Materials › Unit 3: Insulating Materials · Easy