Fluid Mechanics Test Questions


Q.  Property of a fluid by which its own molecules are attracted is called___________________?

a. adhesion
b. cohesion
c. viscosity
d. compressibility
e. surface tension


ANSWER: See Answer
 
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MCQs:  Unit of thermal conductivity in S.I. units is__________________?
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MCQs:  Heat transfer in liquid and gases takes place by_____________________?
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MCQs:  Heat flowing from one side to other depends directly on ___________________? Pick up the wrong case?
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MCQs:  Which of the following is the case of heat transfer by radiation ___________________?
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MCQs:  Which of the following is a case of steady state heat transfer ___________________?
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MCQs:  Thermal conductivity of water in general with rise in temperature ____________________?
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MCQs:  Temperature of steam at around 540°C can be measured by ____________________?
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MCQs:  Metals are good conductors of heat because________________?
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MCQs:  Cork is a good insulator because it has___________________?
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MCQs:  Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of__________________?
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MCQs:  Thermal conductivity of air with rise in temperature__________________?
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MCQs:  Total heat is the heat required to__________________?
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MCQs:  Thermal conductivity of water at 20°C is of the order of_____________________?
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MCQs:  The time constant of a thermocouple is_______________?
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MCQs:  In heat transfer, conductance equals conductivity (kcal/hr/sqm/°C/cm) divided by ________________?
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MCQs:  Which of the following is expected to have highest thermal conductivity_______________?
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MCQs:  Thermal conductivity of a material may be defined as the________________?
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MCQs:  Heat is transferred by all three modes of transfer, viz, conduction, convection and radiation in _________________?
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MCQs:  The ratio of heat flow Q1/Q2 from two walls of same thickness having their thermal conductivities as ATj – 2K2 will be ________________?
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MCQs:  Thermal diffusivity of a substance is ____________________?
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