
Electrical MCQ
Authored by Mr AK undefined
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45 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the yellow triangle with a black lightning bolt symbol indicate?
Fire hazard
Electrical hazard
Biohazard
Flammable liquid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A red label on a container usually signifies:
Cold substance
Harmless gas
Danger or flammable material
Low voltage
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which color is typically used for "emergency stop" buttons or switches?
Green
Red
Blue
Yellow
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The label with a skull and crossbones symbol means:
High voltage
Irritant
Toxic or poisonous
Sharp object
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circuit with dependent sources only (no independent source) has the Thevenin equivalent voltage as:
Zero
Depends on load
Equal to internal EMF
Infinity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a symmetrical π-network, the input and output impedance are:
Different
Always purely reactive
Always equal
Always zero
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a 10 A current flows through a coil having 500 turns and area of 0.2 m², what is the MMF?
100 A-T
2000 A-T
1000 A-T
5000 A-T
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