C:-360cm
D:-460cm
Correct Answer:- Option-A
Question66:-The principle of LCD display is
A:-Twisted pneumatic
B:-Pneumatics
C:-Thermocouple
D:-Vaccum display
Correct Answer:- Option-A
Question67:-In a 7 segment display system the decimal point is displayed by
A:-any one of the 7 bit
B:-f bit
C:-a separate 8th bit
D:-g bit
Correct Answer:- Option-C
Question68:-An UPS which does not require inverteris ____
A:-Online UPS
B:-Offline UPS
C:-DC power UPS
D:-Line interactive UPS
Correct Answer:- Option-C
Question69:-In a UPS the failure of AC input supply is indicated by
A:-Red lightnonly
B:-A buzzer only
C:-Both red light and buzzer
D:-None of these
Correct Answer:- Option-C
Question70:-The desirable changeover period fora UPSis __
A2 ms
B:-5 ms
C:-10 ms
D:-1 ms
Correct Answer:- Option-D
Question71:-Solar energy 15 ___ 78500706 ೦8 energy
A:-Consumable
B:-Renewable

Correct Answer:- Option-B
Question72:-A solar panel is usually designed to generate ___ volts DC
‏1-۷-ھ‎
‎8:-3-5 ४
८-6-7४
0:-12-20 ४
Correct Answer:- Option-D
Question73:-Which device is used ന remote control operated electronic equipment to work as an acceptor for the remote
signal
A:-Zener diode
B:-Photo 01௦0௨
C:-IR LED
D:-Photo voltaic cell
Correct Answer:- Option-B
Question74:-The overall thickness of a LED is abaout
കട. ‏٥‎
‎B:-2.5 cm
೧೨.5೧
D:-4.5 em
Correct Answer:- Option-B
Question75:-A LCD panel is not a self illuminated panel. For illuminating ‏۵٣٠ ____ 2۳۵۱م ى۳٤‎ used as backlight devices