EE MCQ
EE MCQ
Home
Quiz
Contact Us
Switch Gear
SF6 gas
is nontoxic
is lighter than air
None of these
is yellow in colour
has pungent small
is nontoxic
is lighter than air
None of these
is yellow in colour
has pungent small
Answer
Download EE MCQ app
Related Question
Switch Gear
Arc in a circuit breaker behaves as
a resistance increasing with voltage rise across the arc
an inductive reactance
a capacitive reactance
a resistance decreasing with voltage rise across the arc
a resistance increasing with voltage rise across the arc
an inductive reactance
a capacitive reactance
a resistance decreasing with voltage rise across the arc
Answer
Download EE MCQ app
Switch Gear
The voltage appearing across the contacts after opening of the circuit breaker is called
operating voltage
surge voltage
arc voltage
recovery voltage
operating voltage
surge voltage
arc voltage
recovery voltage
Answer
Download EE MCQ app
Switch Gear
A short-circuit is identified by
heavy current flow
voltage rise
no current flow
voltage drop
heavy current flow
voltage rise
no current flow
voltage drop
Answer
Download EE MCQ app
Switch Gear
The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to
lubricate the contacts
None of these
extinguish the arc
insulate the contacts from switch body
All of these
lubricate the contacts
None of these
extinguish the arc
insulate the contacts from switch body
All of these
Answer
Download EE MCQ app
Switch Gear
For interrupting of high voltage and low current, the circuit breaker prefered is
all are correct
vaccum circuit breaker
oil circuit breaker
air-blast circuit breaker
all are correct
vaccum circuit breaker
oil circuit breaker
air-blast circuit breaker
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram