(a). Explain the significance of the root- mean- square value of an alternating current or voltage waveform; Define the form factor of such a wave form. (b). A total load of 8000 kW at 0.8 power factor is supplied by two alternators in parallel. One alternator supplies 6000 kW at 0.9 power factor. Find the kVA rating of the other alternator and the power factor.

Comments

Post a Comment

Popular posts from this blog

EM MEO Class 1 Written Question (JAN 2023)

EXAMINATION OF MARINE ENGINEER OFFICER ENGINEERING MANAGEMENT M.E.O CLASS – I TIME - 3 HOURS  Total Marks – 100 Q1. Improvements in Rudder efficiency can considerably contribute to improving propulsion   effectiveness. Discuss common rudder-efficiency improvements devices/ techniques currently in use,   referring to the following: (a) Rudder Thrust Fins (b) Asymmetric Rudders (c) Rudder Bulbs (d) Grim Vane Wheels Q2 . a) Briefly discuss Anti fouling convention and state all Documents and records to be maintained on a ship to demonstrate Anti fouling convention compliance. c) Discuss various alternatives to tin-based antifouling paints, with specific reference to the following   types: - (i) Controlled Depletion Polymer (CDP) paint; (ii) Self-Polishing Copolymer (SPC) paint; (Ill) Hybrid TBT free paint ; (iv) Fouling Release paint. Q3 . State the different types of marine insurance policies that could be taken by owners, shippers or   other related parties....
Read more