Glassdoor users rated their interview experience at Semsys as 100% positive with a difficulty rating score of 3 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Engineer 1 and rated their interviews as the hardest, whereas interviews for Engineer 1 and roles were rated as the easiest.
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Question asked from, RAC (Technical) if you are from mechannical background. Try to prepare Basic of Refrigeration cycle, VCRS and Thermodynamics , and also Knowledge of HVAC Component is added advantage