Electric Mechanic Interview Preparation Guide

Positive feedback is not used generally in the control system because it increases the error signal and drives the system to instability. But positive feedbacks are used in minor loop control systems to amplify certain internal signals and parameters

SF6 is Sulpher hexa Flouride gas.. if this gas is used as arc quenching medium in a Circuitbreaker means SF6 CB.

Since two bulbs are in series they will get equal amount of electrical current but as the supply voltage is constant across the bulb(P=V^2/R).So the resistance of 40W bulb is greater and voltage across 40W is more (V=IR) so 40W bulb will glow brighter.

A two phase motor is a motor with the the starting winding and the running winding have a phase split. e.g; ac servo motor. where the auxiliary winding and the control winding have a phase split of 90 degree.

If their is high power factor, i.e if the power factor is close to one:
☛ a) Losses in form of heat will be reduced,
☛ b) Cable becomes less bulky and easy to carry, and very cheap to afford, &
☛ c) It also reduces over heating of tranformers.

I am very confident in my ability to interpret electrical diagrams. This is one of my stronger suits in my current role and I have a lot of experience doing so. When it comes to repairing equipment, I always think of safety first. I have taken additional safety courses as well.

Interviewers who ask this question want to see that you are safety-minded. They want to see that you have a good understanding of the risks associated with this type of work and get a sense of how concerned you are about safety in the way you approach your work.

You'll find this question near the end of the interview. If you feel you have something special to offer that didn't get mentioned or prompted in the interview, then say it here. Avoid using cliched buzzwords like "hard-working," "fast learner" or "gets along well with others." Phrase your response in terms of what you can do for the employer, not how the job can benefit you. Use this question as your opportunity really to sell yourself to the hiring manager.

Reciting academic or obvious work achievements are not the best answers – they won’t distinguish you from the crowd. Instead, say something that will set you apart, that speaks about your aspirations and values. Organising a sport or fund-raising event, taking part in a race, or learning and using a new language or musical instrument are good examples. ‘I was nominated to be a representative to be go-between for our team and the senior management stakeholders’, is another.

When a number of elements or components are connected in a sequence to perform a specific function, the group of elements that all constitute a System