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ANSWERS-POOL QUESTION ANSWERS BOILING CLASS NOTES

 POOL BOILING QUESTION ANSWERS CLASS NOTES  Pool boiling phase conversion while fluid is at rest. It is common in day today life. There are empirical correlations to find the heat transfer during pool boiling. Boiling a heat transfer process in which liquid changes to vapor at the saturation temperature. In this, there is latent heat…

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REFRIGERATION & AIR CONDITIONING -QUESTION BANK

REFRIGERATION & AIR CONDITIONING -QUESTION BANK Short questions increase the understanding and clarity to a greater depth. It enables to apply the fundamentals in real life. Searching answers makes oneself confident. REFRIGERATION Thermodynamic properties of a refrigerant?  Transport properties of a refrigerant?  Chemical properties of a refrigerant? Physical properties of a refrigerant? Toxic properties of…

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CRITICAL SPEED QUESTION ANSWERS CLASS NOTES

CRITICAL SPEED QUESTION ANSWERS CLASS NOTES   Critical speed is the rotational speed which is equal to the numerical value of the natural frequency of vibration. Then rotational speed and natural frequency are in resonance. At this speed, a rotating shaft becomes dynamically unstable with large lateral amplitudes of vibration due to resonance. Critical speed…

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COOLING LOADS QUESTION ANSWERS CLASS NOTES

COOLING LOADS QUESTION  ANSWERS CLASS NOTES Heat loads determine the capacity of a refrigeration plant for a certain application. These heat loads consist of sensible and latent heat loads. Sensible heat is due to difference of temperature. Latent heat is due to change of state. Fig. Cooling Load Calculations  Q1. What are Sensible heat loads? Give…

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REFRIGERANTS SHORT QUESTION ANSWERS CLASS NOTES

REFRIGERANTS SHORT QUESTION  ANSWERS CLASS NOTES Refrigerant is a working substance in refrigeration. There are many types of refrigerants. Each is for a certain specific purpose. Refrigerants ammonia, R-134a and air are in common use. Their selection depends upon many factors. It should have least ozone depletion and Global warming potential. An azeotrope forms from…

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SHORT QUESTION ANSWERS-PSYCHROMETRY CLASS NOTES FOR MECHANICAL ENGINEERING

PSYCHROMETRY SHORT QUESTION ANSWERS CLASS NOTES FOR MECHANICAL ENGINEERING Question answers are helpful in understanding the psychrometry. This also increases clarity. It is useful in design of air conditioning equipment. This also help in overcoming practical difficulties. Q1. Define dry bulb temperature, wet bulb temperature and dew point temperature. Dry bulb temperature, tdb It is temperature…

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SHORT QUESTION ANSWERS- AIR CONDITIONING CLASS NOTES

     QUESTION ANSWERS ON AIR  CONDITIONING CLASS NOTES Question answers on air conditioning make it easier to understand. Knowledge increases to handle difficult situations. Air conditioning is of two types. These are comfort and industrial air conditioning.   Comfort is for living beings. Industrial air conditioning increases production with improved quality. Fans are used…

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HEAT EXCHANGERS QUESTION ANSWERS CLASS NOTES

HEAT EXCHANGERS QUESTION ANSWERS  CLASS NOTES Most common method of heat transfer is through the use of heat exchangers. There are many types of heat exchangers. Finned tube heat exchangers are most common. Q. Explain multi-pass heat exchangers? When are these used? These heat exchangers are of three types. 1. Firstly multi-pass shell heat exchanger…

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INTERVIEW SHORT QUESTION ANSWERS-RADIATION CLASS NOTES

  INTERVIEW SHORT QUESTION ANSWERS- RADIATION CLASS NOTES Short question answers are extremely helpful in better understanding of radiation. These also improve the depth of knowledge and clarity. Thus, one can apply the fundamentals in design of radiation equipment. Fig. Absorption, Reflection & Transmission of Radiations incident on a Grey Body Q. Define Absorptivity, Reflectivity,…

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SIMPLE STRESSES-STRAIN SHORT QUESTION ANSWERSCLASS NOTES

SIMPLE STRESSES-STRAINS SHORT QUESTION ANSWERS CLASS NOTES   Simple stresses & strains include tensile and compressive. There is simple shear stress & strain. All failure take place to simple stresses. Question answers on stresses increase depth of knowledge. It helps to have clear idea about deformation. Further it is helpful in the design of components. 2….