The insulating material for cables should have? Mark as favorite Copy Link high dielectric strength high mechanical strength low cost all options are correct Check Answer
For welding duty the rectifier commonly used are? Mark as favorite Copy Link Mercury arc rectifier Selenium metal rectifier Both Mercury arc rectifier and Selenium metal rectifier None of these Check Answer
The main source of hydro-electric power station is? Mark as favorite Copy Link coal generator water nuclear Check Answer
The device necessarily used for automatic temperature control in a furnace is? Mark as favorite Copy Link Thermostat Auto-transformer Thermo-couple Any of the options Check Answer
The function of circuit breaker is? Mark as favorite Copy Link to safe guard the circuit to On and Off the circuit to safe human life None of these Check Answer
Wiring clips are usually made of? Mark as favorite Copy Link copper steel Brass aluminium Check Answer
The switch unit need not be on the what type of wire? Mark as favorite Copy Link Phase Neutral earth any of the options Check Answer
Filaments of electric bulbs are usually made of? Mark as favorite Copy Link Nichrome carbon copper tungsten Check Answer
Insulation resistance is expressed by? Mark as favorite Copy Link ohm milli ohm mega ohm micro ohm Check Answer