Question 11 : Aluminum heat sink is also called ___________
1. Folded-Fin heat sink
2. Bonded-Fin heat sink
3. Sleeve bearing type heat sink
4. Extrusion heat sink
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Question 12 : Active heat sinks are less durable than passive heat sink because of the presents of __________
1. Complex electrical network
2. Non-metal components
3. Metal components
4. Moving components
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Question 13 : Which of the following heat sink is more durable?
1. Stamped heat sink
2. Ball bearing type heat sink
3. Sleeve bearing type heat sink
4. Aluminum heat sink
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Question 14 : Difference between active heat sink and passive heat sink is that passive heat sink?
1. Possess mechanical components
2. Possess electrical components
3. Do not possess mechanical components
4. Do not possess metal components
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Question 15 : Passive heat sinks are made of ________________
1. Copper
2. Aluminum
3. Iron
4. Zinc
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Question 16 : Active heat sinks are also called as ___________
1. fans
2. on sinks
3. high sinks
4. normal sinks
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Question 17 : If water is used as a cooling medium then it is termed as _______________
1. liquid plate
2. aqua plate
3. hot plate
4. cold plate
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Question 18 : Comparing high heat objects with cooling objects which one will have slow-moving molecules?
1. High heat objects
2. Cooling objects
3. Both of them have equal molecular movement
4. Cannot be predicted
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Question 19 : What is the purpose of heat sink in transistor circuit?
1. Provide sufficient heat for transistor
2. Absorb excess heat from transistor
3. Keep transistor at desired temperature range
4. All of the mentioned
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Question 20 : Power delivered to load calculated by five-point method can be equal to __________
(P_ac is power delivered to load without distortion and D is the RMS of all Harmonic distortion)
1. P_ac (1-D2)
2. P_ac/D2
3. P_ac (1+D2)
4. P_ac D2
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