Transistor Case and Heat Sinks MCQ

Test your knowledge with important Transistor Case and Heat Sinks MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Transistor Case and Heat Sinks MCQs on Bissoy. Bissoy App

• Which of the following characteristics makes passive heat sinks differently from active heat sinks?
  ক

  It possess mechanical components

  খ

  It possess electrical components

  গ

  Does not possess mechanical components

  ঘ

  It possess electrical & mechanical components
• The epoxy bond between the heat sink and component is __________
  ক

  Temporary

  খ

  Loosened

  গ

  Permanent/semi-permanent

  ঘ

  Highend
• Which of the following is not an application of transistor heat sinks?
  ক

  Soldering

  খ

  Light Emitting Diode Lamps

  গ

  Microprocessor Cooling

  ঘ

  Environment Monitoring Systems
• _______are usually utilized to extract heat from a variety of heat generating bodies to a heat sink.
  ক

  square fins

  খ

  cylindrical fins

  গ

  cavities

  ঘ

  no option
• How can a pin fin heat sink be classified on the basis of fin arrangements?
  ক

  Pin, straight pin, flared pin

  খ

  Pin, circular pin, cylindrical pin

  গ

  Straight pin, circular pin, isotopic pin

  ঘ

  No classification
• How can one decrease the spreading resistance in the base of the heat sink?
  ক

  Increase the base thickness.

  খ

  Decrease the base thickness.

  গ

  Choosing a material with less conductivity.

  ঘ

  There is no possible way.
• Fin efficiency is increased by_______
  ক

  Using insulating material

  খ

  Decreasing the fin aspect ratio

  গ

  Using more conductive material

  ঘ

  Decreasing the fin aspect ratio & Using more conductive material
• Copper has around twice the thermal conductivity of aluminum.
  ক

  True

  খ

  False
• Heat sinks work through the process of _______
  ক

  resistive heat transfer

  খ

  conductive and convection heat transfer

  গ

  active process

  ঘ

  no heat transfer
• Why does the heat sink has fins?
  ক

  to provide cooling to the processor

  খ

  to provide airflow to the radiator

  গ

  to preserve the energy

  ঘ

  to provide radiator to the airflow