This set of Food Processing Unit Operations Objective Questions & Answers focuses on “Heat Transfer Applications – Thermal Properties of Food”. 1. Specific Heat (kJ/kg K) of apple is ________ a) 1.88 b) 1.67 c) 1.76 d) 1.42 2. The specific heat of a material can be determined by ______________ a) calorimetry b) manometers c) … Read more
This set of Food Processing Unit Operations Multiple Choice Questions & Answers (MCQs) focuses on “Heat Transfer Applications – Plate Heat Exchangers”. 1. What is the purpose of the portholes on the plates of plate heat exchangers? a) To have a even flow of the fluid throughout the plate b) To drain the excess liquid … Read more
This set of Food Processing Unit Operations Multiple Choice Questions & Answers (MCQs) focuses on “Heat Transfer Applications – Batch Heat Exchangers”. 1. What is heat economizing? a) The total cost of the heat exchanger and its maintenance cost b) Interchange heat among the hot and cold fluids to conserve heat energy. c) The capital … Read more
This set of Food Processing Unit Operations Interview Questions and Answers for freshers focuses on “Heat Transfer Applications – Continuous Flow Heat Exchangers”. 1. What type of heat exchanger used in oil refineries? a) Shell and tube Heat exchanger b) Plate heat exchanger c) Finned tube heat exchanger d) Plate fin heat exchanger 2. Air … Read more
This set of Food Processing Unit Operations Multiple Choice Questions & Answers (MCQs) focuses on “Heat Radiation”. 1. Which is the fastest mode of heat transfer? a) Conduction b) Convection c) Radiation d) Both conduction and convection 2. Which law governs the thermal radiation? a) Fourier’s law b) Pascal law c) Newton law d) Stefan-Boltzmann … Read more
This set of Food Processing Unit Operations Multiple Choice Questions & Answers (MCQs) focuses on “Heat Convection”. 1. Which of the following example explain convection? a) The heat from a hot liquid makes the cup itself hot b) Walking on the beach on a hot summer day will warm the feet c) A metal spoon … Read more
This set of Food Processing Unit Operations Multiple Choice Questions & Answers (MCQs) focuses on “Heat Conduction”. 1. Ice has __________ thermal conductivity than water. a) lower b) higher c) same d) very lower 2. Which material has highest thermal conductivity? a) Diamond b) Copper c) Silver d) Bronze 3. Which of the following is … Read more
This set of Food Processing Unit Operations Question Paper focuses on “Power for Agitation”. 1. Which unit operation involves the mechanically induced establishment of a flow pattern in a liquid mixture? a) Sedimentation b) Agitation c) Mixing d) Crystallization 2. The figure given below is a 3 bladed device, used to produce Agitation in liquids. … Read more
This set of Food Processing Unit Operations Multiple Choice Questions & Answers (MCQs) focuses on “Fluid Flow Applications – Pumps and Fans”. 1. In a __________ pump, the fluid is drawn into pump and is then forced through outlet. a) positive displacement b) jet c) airlift d) propeller pumps 2. In _________pumps, the energy of … Read more
This set of Food Processing Unit Operations Questions and Answers for Freshers focuses on “Pressure Measurement in a Fluid”. 1. Manometer is used for measuring __________ a) pressure b) speed c) Fathometer d) density 2. Which instrument is used to measure medium pressure? a) Bourdon tube pressure gauges b) Barometric sensor c) Piezoelectric pressure sensor … Read more
