Forwarded from Sigma Engineering Commercial Service chat
Which device protects human life from electric shock?
Anonymous Quiz
26%
A) MCB
9%
B) Fuse
13%
C) Isolator
52%
D) RCD
👍1
Saturday Quiz ⭐️
Which device is used to switch a motor ON and OFF frequently?
Which device is used to switch a motor ON and OFF frequently?
Anonymous Quiz
4%
A) Fuse
11%
B) Isolators
83%
C) Contactor
2%
D) Cable
⭐️Saturday Quiz
What happens when an appliance receives too much voltage?
What happens when an appliance receives too much voltage?
Anonymous Quiz
0%
A) It works better
0%
B) Nothing happens
100%
C) It may be damaged or burn out
0%
D) It becomes cooler
👍1
⭐️Saturday Quiz
What is the main purpose of a fuse?
What is the main purpose of a fuse?
Anonymous Quiz
2%
A) To increase voltage
98%
B) To protect a circuit from overload and short circuit
0%
C) To store electricity
0%
D) To control motor speed
😁1
⭐️Saturday Quiz
How many time settings are available in a double delay time relay?
How many time settings are available in a double delay time relay?
Anonymous Quiz
5%
A) One
69%
B) Two
10%
C) Three
17%
D) Unlimited
⭐️Saturday Quiz
What is the unit of electric current?
What is the unit of electric current?
Anonymous Quiz
2%
A) Volt
2%
B) Watt
96%
C) Ampere
0%
D) Ohm
⭐️Saturday Quiz
What is the main purpose of earthing (grounding)?
What is the main purpose of earthing (grounding)?
Anonymous Quiz
2%
A) Increase voltage
0%
B) Improve power factor
98%
C) Protect people from electric shock
0%
D) Increase current
Which timer turns OFF after a delay when power is removed?
Anonymous Quiz
15%
A) ON-delay
60%
B) OFF-delay
15%
C) Star-delta
11%
D) Latching
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