OIL AND GAS ELECTRICAL AND INSTRUMENTATION ENGINEERING

OIL AND GAS,PETROCHEMICALS AND POWER PLANT ENGINEERS AND TECHNICIANS INTERVIEW QUESTION AND ANSWERS FOR ELECTRICAL AND INSTRUMENTATION ENGINEERING

Wednesday, January 15, 2014

ELECTRICAL QUESTIONS AND ANSWERS

01. What is the classification of hazardous area? Hazardous area classified as Zone - 0, Zone – 1 and Zone – 2. Zone – 0 a...
MECHANICAL FITTER INTERVIEW QUESTIONS AND ANSWERS

MECHANICAL FITTER INTERVIEW QUESTIONS AND ANSWERS 1. Define Valve? Valve is a Mechanical flow control elem...
ELECTRICAL ENGINEERING QUESTION AND ANSWERS

Q: What is vaccum currcuit breaker.define with cause and where be use it Device? A: A breaker is normally used to break a circ...
CABLE GLANDS

Q: What is Cable Gland? A:A device designed to permit the entry of cable in to electrical equipment which provides sealing, ret...
VALVE ACTUATORS

VALVE ACTUATORS Some type of actuator is necessary to allow for the positioning of a valve. Actuators vary from simple manual ...
MAINTENANCE PROCEDURE FOR SUBSTATIONS AND SWITCHGEAR

MAINTENANCE PROCEDURE FOR SUBSTATIONS AND SWITCHGEAR GENERAL The maintenance of the switchgear and electrical ...
SYSTEM OF INSTRUMENT EARTHING

Instrument earthing system shall consist of the following earth type: E lectrical earthing (also called dirty earthing or Prot...
DOL STARTER POWER AND CONTROL DIAGRAM

DOL STARTER POWER AND CONTROL DIAGRAM
DIFFERENT KINDS OF RELAYS

DIFFERENT KINDS OF RELAYS 1 OCR Over current relay 50 / 51 2 EF Earth fault 50 N / 51 N...
STAR/DELTA STARTER CONTROL CIRCUIT

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