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Question Asked @ Answers Views     Select
Can we use MCCB with Auxiliary Contact in place of Contactor in a AMF System.    0  2
What i the role of a turning gear attached to a shaft line of a steam turbine    0  2
What is the meaning of the critical speed of a turbine, and what are its effects on the shaft line    0  2
What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?    0  2
what should do  to reduce the breakdown of fire water pump?    0  2
what do u mean by shear?and tension?    0  2
Can we see the poles in the motor?. if yes then how can we see plz tel me    1  3
Why neutral shows voltage with earth ?    0  3
grade of cement used for plastering? why?    0  3
what is meaning of inverted it way to provide double mat in slab one at bottom and another at topif we go for provision of inverted beam. shall we construct structure with out plinth beam for us we have to construct small bus shelter    0  5
Does dry and oil transformers both require dedicated neutral, because in my project we are using 2500kv dry star delta transformer, where they say neutral not required and even it is not provided in our substation. can u let me know    1  7
how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?    0  5
how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.    0  5
 rcc floor to floor  4m. in column reinforcement where we provide lap in exact location.         0  6
standard sand use?    1  10
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Un-Answered Questions
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how choose conductor&depending upon load 224
difference between microcontroller and microprocessor 241
What is the difference between rated and per unit in transformer? 410
what may the reason for vector shift in a generator? 217
2. Dry saturated steam at 3.5 bar is expanded through a convergent nozzle to 2.2 bar. The exit area is 5 sq. cm. Calculate the exit velocity and mass flow rate, assuming isentropic expansion and super saturated flow. b) A cast iron cylinder head is fastened to a cylinder of 750mm bore with 12 stud bolts. The maximum pressure inside the cylinder is 3 Mpa. The stiffness of part is thrice the stiffness of the bolt. What should be the initial tightening load so that the point is leak proof at maximum pressure? Also choose a suitable bolt for the above application 2 The propeller shaft of a marine engine is to transmit 600 kW at 1200 rpm, without a significant bending. The efficiency of the propeller is 88% at 32 knots ( 1 knot = 1085 km/hr). If the slenderness ratio is less than 50 and the permissible shear stress should not exceed 65 Mpa. Determine the diameter of shaft. 3 A semi-elliptic leaf spring consists of two extra full-length leaves and six graduated length leaves, including the master leaf. Each leaf is 7.2 mm thick and 65 mm wide. The centre-to-centre distance between the two eyes is 1.3m. The leaves are pre-stressed in such a way that when the load is maximum, stress induced in all leaves are equal to 380 N/mm sq. Determine the maximum force that the spring can withstand 406
1. What are the three methods of the heat transfer? Give example for each 2. Name the four most important components of a Freon refrigeration system. 3. What is an expansion valve and its purpose? 4. What happen when the expansion valve is excessively open? 5. Kind of refrigerant use in a refrigerating system 6. Purpose of evaporator in refrigeration system. 7. What are the characteristics of Freon 12? 8. Purpose of condenser in refrigeration system? 9. Kinds of refrigerants and their properties. 10. What will happen if there is moisture in refrigeration system? 11. Explain the cycle of refrigeration system. 12. Give the different ways of detecting leaking refrigerants? 13. What is the cold side of the refrigeration system? 14. What is the purpose of liquid receiver? 15. What are specific heat, latent heat and sensible heat? 16. Where id the warm side of a refrigeration system? 17. What would happen if there was water in refrigeration line? 18. What safety device will activate to stop the compressor in the refrigeration system 19. What phenomenon becomes when air mixed with refrigerant? 20. What is the effect if tour refrigeration system has an air? 21. What is short cycling in refrigeration system? 22. What is the hottest part of refrigerant in the refrigeration system? 23. Diagram of refrigeration? 24. Give the function o evaporator? 25. What is a magnetic valve of refrigeration system? 26. In refrigeration, why during operations is running low pressure at the suction side? 27. What is a liquid flooding in refrigeration system? 28. What are the safety devices that are fitted in a refrigeration system? 29. What is flaring tool? 815
sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email 175
There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2 288
what is studds? where it can be done? 799
in my observation NCT is used at Karnataka power transmission. why we are not used in andhra pradesh 307
how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr 2242
I have 480V Single phase and I am trying to figure how big of a transformer (KVA's) and Primary breaker size I need to provide 200 Amps at 240V for a building. 330
What kind of tools and materials are required to test water softening system of heating plant? 313
what is alternater & engine genral protection? 394
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