Power Electronics Test 1 EE2425B

Power Electronics Test 1 EE2425B

University

16 Qs

quiz-placeholder

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Power Electronics Test 1 EE2425B

Power Electronics Test 1 EE2425B

Assessment

Quiz

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University

Practice Problem

Medium

Created by

Gia Zaliha

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16 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] Fill in the blank .
Power Electronics  circuits involve______________ from one form to another using power semiconductor devices  (1 mark)

converting mechanical power
transfer heat
converting electrical power
converting electromagnetic field

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] Application of power electronics in drive system is...... (2 marks)

to convert electrical charge for supplying load demand or for Power Quality (PQ) improvement.
to convert electrical power for supplying load demand or for Power Quality (PQ) improvement.
to manipulate certain parameter for controlling the weight of motors.
to manipulate certain parameter for controlling the speed of motors.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] How to increase the reverse blocking capability of diode? (1 mark)

connect several diodes in parallel
connect several diodes in series

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] The current gain, β of BJT is given by the expression (1 mark)

IC/IB
IC/IE
IB/IC
IE/IG

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] The controlling parameter in IGBT is the......(1 mark)

IG
VGS
ID
VGE

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] For an SCR in the REVERSE BLOCKING MODE, (practically)...... (1 mark)

leakage current flows from anode to cathode
no leakage current
leakage current flows from cathode to gate
leakage current flows from cathode to anode

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

[3 minutes] Three types of common  power transistor are.....(1 mark)

Diode, Triac and IGBT
BJT, MOSFET and IGBT
Diode, IGBT and GTO
GTO, MOSFET and IGBT

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