Mechanical engineer interviews questions

Please click  on the link and enjoy this awesome page -  Bearings Classification -  Applications of Roller Bearings -  Advantages and disadvantages of the plain bearing -  Function of a Bearing -  Antifriction Bearings

Please click  on the link and enjoy this awesome page -  Air conditioning Units or AHU TR

Please click  on the link and enjoy this awesome page -  The basic types of mechanical agitators

Please click  on the link and enjoy this awesome page -  Latent Heat & Sensible Heat -  Steam boilers and steam pipes -  Temperature -  Ideal gas law -  Charles's Law -  STP-Standard Temperature and Pressure

Please click  on the link and enjoy this awesome page -  Pump condition based maintenance -  Pump predictive maintenance -  Preventive Maintenance of pump -  Pump maintenance

Please click  on the link and enjoy this awesome page - Pokayoke -  Autonomous maintenance -  MTTF -  Predictive maintenance, Preventive and Proactive maintenance -  methods to improve Pipeline Reliability

Thermic Fluid Heater:- Please click  on the link and enjoy this awesome page  - Thermopac -   Expansion/De-aeration Tank of Thermopac

Vacuum pump:- Please click  on the link and enjoy this awesome page - Working Principal Mechanical Booster -  Working Principle Dry Screw Vacuum pump -  Function of Mechanical vacuum Booster pump -  Mechanical Boosters-Replace steam Ejector

Cooling tower:- Please click  on the link and enjoy this awesome page  -  L/G ratio of cooling tower. Significance of  L/G ratio -  Problems in Cooling Water Systems -  Glossary of Cooling Tower Terms -  Natural Draft Cooling Towers

Mechanical Engineering:- Please click  on the link and enjoy this awesome page - basics of  Air compressor Please click  on the link and enjoy this awesome page -  pump Please click  on the link and enjoy this awesome page -   chiller Please click  on the link and enjoy this awesome page -  cooling tower Please click  on the link and enjoy this awesome page -  Thermic fluid heater Please click  on the link and enjoy this awesome page -  Boiler Please click  on the link and enjoy this awesome page -   Reactor Please click  on the link and enjoy this awesome page -  Agitator Please click  on the link and enjoy this awesome page - Lubricants Please click  on the link and enjoy this awesome page -  HVAC Please click  on the link and enjoy this awesome page -  AHU Please click  on the link and enjoy this awesome page - Vapour compression cycle Please click...

Please click  on the link and enjoy this awesome page -  Basics of Water Treatment process -  What is pitting ? How it is caused ? How to prevent pitting corrosion? -  the formation of Scale? -  How hard water is formed in nature? -  cause of hardness in natural waters -  What Is Hard Water? -  Scale and deposit formation

Please click  on the link and enjoy this awesome page -  What is compressor? What is function of compressors? -  Basic concept of centrifugal compressor -  Air Compressor Leak Test Method -  Air Compressor Volumetric Efficiency -  Air Compressor Isothermal Efficiency -  Capacity Assessment Method of Air Compressor -  Isothermal compression in air compressor - What should be the Bumping Clearance? - Why cooling is required in compressors? -  How to measure clearance volume in reciprocating compressors? -  Why clearance volume required between piston and cylinder? -  Materials used for construction of compressor. -  How to Adjust the Bumping Clearance? -  How to Check Bumping Clearance in reciprocating compressors? -  What is Bumping Clearance? -  How to rectify Piston to Head Clearance in reciprocating compressors? -  Significance of Bumping Clearance in reciprocating air compressor. -...

Please click  on the link and enjoy this awesome page - What are loss in a boiler and how to measure and control it? - What are parameters to be checked/controlled in softening plant    while regeneration? - Why dry saturated steam is preferred over wet or super heated  steam for process in industry? - Boiler basic - Evaporation ratio of boiler - Enthalpy - How boiler rated capacity is specified? - Why fire tube boilers are not designed and used for high pressure  and higher capacity requirements - evaporation ratio for Coal fired boiler - evaporation ratio for oil fired boiler - evaporation ratio for Natural Gas fired boiler - Blowdown pressure setting of boiler safety valve - Boiler system schematic - Deaeration process - Stoichiometric ratio and fuel combustion - Rules of Thumb-Boiler - Energy conservation opportunities in steam system

-  Please click  on the link and enjoy this awesome page  -  chiller basic - Vapor Compression Refrigeration - Thermostatic Expansion valve - What is flash chamber?  its significance in vapor compression refrigeration system -  Alternative Refrigerants for Vapour Compression System -  Performance Assessment of Refrigeration Plants (TR)

Please click on the link and enjoy this awesome page - CENTRIFUGAL PUMPS - Centrifugal pump cavitation - Drive shaft alignment-Soft foot - maintenance of pump - Jaw Misalignment - Pump Shaft alignment - Pump Cavitation - Centrifugal pump operation - Delivery pipe of pump - Suction pipe of pump - Pump correct installation benefits - what is the function of pump? - Net Positive Suction Head Required, NPSHR, Net Positive Suction Head Available, NPSHA - Pump Head - Impellers are used for slurry pump applications - Material of Shaft - System Curve and pump curve - Pump system Characteristics - Specific Speed of pump - NPSH Calculation - Vapor Pressure - Cavitation - Capacity (Flow rate) of pump - Pump Head Terminology - Why cavitation will occur in Centrifugal Pumps and not in displacement pumps? - Pump basic - Pump troubleshooting guide

ISO 2372 (10816) Standards provide guidance for evaluating vibration severity in machines operating in the 10 to 200Hz (600 to 12,000 RPM) frequency range. Examples of these types of machines are small, direct-coupled, electric motors and pumps, production motors, medium motors,  generators, steam and gas turbines, turbo-compressors, turbo-pumps and fans. Some of these machines can be coupled rigidly or flexibly, or connected though gears. The axis of the rotating shaft may be horizontal, vertical or inclined at any angle. Use the chart below combined with additional factors described in this manual to judge the overall vibration severity of your equipment. Class l Individual parts of engines and machines, integrally connected with the complete machine in its normal operating condition. (Production electrical motors of up to 20 HP (15 kW) are typical examples of machines in this category.) Class ll Medium-sized machines typically,...