Online Engineering Information

  (1) Difference between Induction motor & Synchronisation motor Ans:- In Synchronisation motor a separate dc source is required to excite the rotor but not in induction motors (2) WHY INDUCTION MOTORS MOSTLY USED ON BOARD SHIP (about 95%) Ans.   (3) what are the types of three-phase induction motor starter and which is most used and why? Ans:- Three types of starter, a.  Direct -online starter,    b. Star delta,.   C. Autotransformer  Star - Delta starter method of starting three-phase induction motors is very common and widely used. (4) what is the purpose of starter in DC motor? Ans:-   Starters are used to protect DC motors from damage that can be caused by very high current and torque during startup. They do this by providing external resistance to the motor , which is connected in series to the motor's armature winding and restricts the current to an acceptable level. (5) what is the condition of parallel operation

  QUESTIONS YOU MUST PREPARE YOUR ANSWERS OF THESE QUESTIONS BEFORE ATTEND OR APPEAR FOR TME (Trainee Marine Engineer) or Engine Cadets for HR ((Human Resource) questions. (1) Tell me about yourself.  This question is one of the most frequently asked questions. Where do you start? What do they really want to know? Are you to begin from elementary school or college. You have to be very careful about how you answer this question because your answer here sets the tone for the rest of the interview. This question is mostly asked as an icebreaker but if you did not prepare for it, it becomes a real problem. The right approach to this is to discuss your key strengths and how they relate to the job. Talk about a few of your accomplishments. Talk about your current employer and then tell them how you see yourself fitting into a position at their company. (2)How you came to know about this field?   (3)why you want to join this field?   (4) why should we hire you? This is a ve