UPS uses which of the following device to control interruption in power supply?
a) battery
b) capacitor
c) resistor
d) all of these
Which of the
following is performed by UPS?
a) resist voltage change
b) limit the
current
c) convert DC voltage to AC
d) store energy
Which of the
following is detected by the UPS?
a) loss in primary power source
b) reduction in primary power source
c) resistance in the circuit
d) both a and b
Which of the following is used in UPS to convert DC voltage to AC voltage?
a) inverter
b) resistor
c) converter
d) all of these
Which of the following reaction takes place when baking soda and vinegar are mixed?
a) chemical
b) physical
c) biological
d) geological
Which of the following gas is produced when baking soda and vinegar are mixed?
a) oxygen
b) nitrogen
c) methane
d) carbon dioxide
