Deepakkumar Yadav
Deepakkumar Yadav Routine Test for Measurement of D.C. Resistance of Winding Q. Explain routine test for measurement of D.C. resistance of winding. Routine test : The resistance of each winding is measured by passing direct current and temperature of the winding is recorded. Care must be taken to reduce self – inductive effects. The arrangement is shown … Read more
Safety Signs and Symbols State four safety signs and symbols used in industry. Safety signs and symbols : The requirement of safety signs are as below : It should be illustrative i.e. the person must understand its meaning easily. It should convey the instruction easily. It should be Photographically so that it is easily understood … Read more
Maintenance of Motors which Help in Energy Conservation Maintenance : Inadequate maintenance of motors can significantly increase losses and lead to unreliable operation for example, improper lubrication can cause increased friction in both the motor and associated drive transmission equipment. Resistance losses in the motor, which rise with temperature, would increase. Providing adequate ventilation and … Read more
Equipment Used for Lifting Heavy Electrical Machines During Installation Q. List out the tools required for loading and unloading the heavy equipments. Also state the use. OR State any four equipments used for lifting heavy electrical machines during installation. Flexible hoisting devices-Chain and Ropes. Pulleys, pulley system, sprockets and drums. Load handling, attachment, accessories etc. … Read more
Ages and Maintenance of Variable Load Sizing to Variable Load : Industrial motors frequently operate under varying load conditions due to process requirements. A common practice in cars where such variable-loads are found is to select a motor based on the highest anticipated load. In many instances, an alternative approach is typically less costly, more … Read more
Application Of Tariff System To Reduced Energy Bills (a) Time of use metering : The time of use metering (TOU) involves dividing the day, month and year into tariff slots. Energy used during peak load periods is charged at high rates and that used during off peak loud period charged at low rates. It affects … Read more
Common Trouble in Electrical Installation Q. List the common trouble in electrical installation. Foundation not strong. Foundation structure, nut-bolt not aligned properly. Concrete foundation if not cured for a period of time may create problems. There may not be sufficient space for foundation or around foundation to fix accessories. Sufficient space around the installation may … Read more
Silvester’s Method of Providing Artificial Respiration Q. Explain silvester’s method of providing artificial respiration. silvester’s method (Arm-lift-chest-pressure method) This method is illustrated in above Figure The patient is laid on his back. His arms are grasped above the wrists and drawn first upward and then above the head until they touch the floor. Then they are … Read more
Effect of Misalignment on the Performance of Machine Q. What happens, If leveling and alignment of two shafts of directly coupled machines are not matched? OR What is the effect of misalignment on the performance of machine ? The shaft, pulleys, couplings of driven and driving machine need proper alignment. If it is not ensured … Read more
Basic Requirements of Machine Foundation Q. State three basic requirements of machine foundation. Requirements : Foundation shall be horizontal level (check by spirit level) Foundation should be rigid to absorb vibrations. It should transmit, both static and dynamic weight of the machine to ground.