1. What will happen if the armature rheostat is not in maximum position while starting the motor? 2. What will happen if the armature resistance is in minimum position and the eld resistance is in maximum position while starting the motor? 3. How do you reverse the direction of rotation of a DC motor? 4. If the armature connection and the eld connection both are reversed, does the direction of rotation of the motor reverse?

2 Answers  

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written test: 1) periodical and monthly maintenance are called preventive or panned maintenance. 2) Mechanical seal parts and their material. 3)Urea plant main parts and their construction material details.4)Name diagram of the given turbine5) Turbine nomenclature like API name.6)All types of corrosion like Galvanic and oxide with example.7)Parts of gate valve and its usage. diaphragm gate valve usage. etc.....

0 Answers   QAFCO,

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hai this is sreenu...i also applied for the post of PO in syndicate bank..

0 Answers  

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How to operate soot blower boiler and economizer?

0 Answers   ABC Inc, RRB, Siemens,

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what is advantage of hllow shaft over solid shaft aprt from material saving? does hollow shaft absorb more vibration than solid shaft?

4 Answers  

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if C.R increases then detonation will increase or decrease

4 Answers  

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What do you know about DG ,A,B,C, D, Check and safety of generator.?

0 Answers   Sterling Wilson,

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if outer diameter of pipe is known how to determine the inner diameter of pipe????

4 Answers   Hetero,

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How to find ground in main switchboard?

0 Answers   RRB,

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Why is over-pressurizing an air conditioning system bad?

0 Answers  

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Draw a crankshaft and show the parts?

0 Answers   RRB,

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Can metal vapour converted to solid metal

0 Answers  

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