This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Laminar Film Condensation”. 1. For laminar film condensation on a vertical plate, the velocity distribution at a distance δ from the top edge is given by a) p g (δ y – y/2)/σ b) p g (δ y – y 2)/σ c) … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Reynolds Analogy”. 1. Temperature and velocity profiles are identical when the dimensionless Prandtl number is a) 1 b) 2 c) 3 d) 4 2. Reynolds analogy is given by a) Nu x/ (Re x) (Pr x) = 5 St X = – … Read more
This set of Advanced Heat Transfer Questions & Answers focuses on “Symbols Of Geomertical And Thermo Physical Properties”. 1. What is the symbol used for mass? a) M b) L c) A d) V 2. What is the symbol used for length? a) W b) M c) L d) K 3. What is the symbol … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Mean Temperature Difference”. 1. Assumptions made for calculation of logarithmic mean temperature difference are (i) Constant overall heat transfer coefficient (ii) The kinetic and potential energy changes are negligible (iii) There is no conduction of heat along the tubes of heat exchanger … Read more
This set of Basic Heat Transfer Questions & Answers focuses on “Mean Value of Capacity Ratio”. 1. How many fluids remain at a constant temperature during the process of boiling and condensation? a) 1 b) 2 c) 3 d) 4 2. Identify the correct expression for effectiveness a) 4 – exponential (- NTU) b) 3 … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Classification of Heat Exchanger”. 1. Some examples of heat exchanger are (i) Condensers and evaporators in refrigeration units (ii) Evaporator of an ice plant and milk chiller of a pasteurizing plant (iii) Automobile radiators and oil coolers of heat engines Identify the … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Fouling Factor”. 1. Which one is having the highest value of fouling factor? a) Sea water b) Distilled water c) Liquid gasoline d) Clean river 2. What is the value of fouling factor for sea water? a) 0.0001-0.0002 m2 K/W b) 0.0002-0.0003 … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Pohlhausen Equation”. 1. A small thermo-couple is positioned in a thermal boundary layer near a flat plate past which water flows at 30 degree Celsius and 0.15 m/s. The plate is heated to a surface temperature of 50 degree Celsius and at … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Thermal Boundary Layer”. 1. Which field is set up when a fluid flows past a heated or cold surface? a) Energy b) Temperature c) Mass d) Time 2. The zone or thin layer wherein the temperature field exists is called the a) … Read more
This set of Heat Transfer Multiple Choice Questions & Answers (MCQs) focuses on “Condensation”. 1. Condensation refers to a change from the a) Solid to a liquid phase b) Vapor to a liquid phase c) Liquid to a solid phase d) Liquid to a vapor phase 2. Condensation process is very common in (i) Boilers … Read more
