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Worksheets141 S20 A1
Total questions: 12
Worksheet time: 24mins
Name
Class
Date
1.
The rectifier charges the batteries to maintain power and converts the incoming power from .
a)
High voltage to low voltage.
b)
Low voltage to high voltage.
c)
AC to DC.
d)
DC to AC.
2.
The inverter converts the for use with electrical equipment.
a)
High voltage to low voltage.
b)
Low voltage to high voltage.
c)
AC to DC.
d)
DC to AC.
3.
In standby UPS what is the inverter’s normal state?
a)
Turned off.
b)
Turned on.
c)
Switches on and off due to AC supply.
d)
Doesn’t have an inverter.
4.
An inverter is an electronic device or circuitry that changes alternating current (AC) to direct current (DC).
a)
True.
b)
False.
5.
What is the bypass used for in an Online UPS?
a)
To provide power directly to equipment from the power source .
b)
To switch from the AC power source to battery.
c)
For maintenance safety or an internal electronics failure.
d)
All of the choices
6.
What is not a main component of UPS?
a)
Battery
b)
Inverter
c)
Rectifier
d)
Transformer
7.
How many Diodes are there in Halfwave rectifier?
a)
One
b)
Two
c)
Three
d)
Four
8.
How many Diodes are there in Full wave rectifier?
a)
One
b)
Two
c)
Three
d)
Four
9.
How many Diodes are there in Full wave bridge rectifier?
a)
One
b)
Two
c)
Three
d)
Four
10.
What type of UPS is also called double conversion UPS?
a)
Offline UPS
b)
Line interactive UPS
c)
Online UPS
d)
No UPS
11.
What is correct sequence of UPS parts?
a)
Rectifier, Battery, Inverter
b)
Battery, Inverter, Rectifier
c)
Inverter, Rectifier, Battery
d)
Inverter, Battery, Rectifier
12.
a very fast switch that protects your equipment from AC power line surges.
a)
Transient Volt Surge Suppression
b)
External Maintenance Switch
c)
Inverter
d)
Circuit breaker
Reset
