List of top Dairy Technology Questions on Heat Transfer and Unit Operations

The resultant of two forces with a magnitude of \( \frac{a}{4} \) acting at right angle is :
If 10 W/m\(^2\) heat flux is conducted across a wall of 2 cm thickness having a temperature gradient of 4 °C. What is the thermal conductivity of the wall ?
Critical thickness of insulation for spheres is given by which of the following relationship ?
Which of the following metals is having the highest value of thermal conductivity ?
Calculate the power required for homogenizer if flow rate is 10,000 lph and homogenizing pressure is 250 bar.
Which of the following metals is generally used for fabricating homogenizer value ?
Cycle where heat is supplied at constant volume and rejected at constant pressure is called as :
The efficiency of a Carnot engine using an ideal gas as the working substance is given by which of the following equation ?
The internal energy of an ideal gas is a function of which of the following ?
The conductive heat transfer is guided by which of the following laws ?
Diffusion of water molecules within solid food follows which of the following laws ?
In which of the following materials the resistance decreases with increase in temperature ?
A Mollier chart is a plot between which of the following options ?
Power consumption of a refrigerating machine is determined in terms of which of the following units ?
Which of the following statement is correct for a hermetic type of compressor ?
Which of the following device maintains constant level of refrigerant in the evaporator by supplying quantity of liquid refrigerant required to take the load in the evaporator ?
The difference between the temperature of water entering the cooling tower and temperature of water leaving the cooling tower is known as :
Which of the following type of a condenser is the shell and tube type condenser ?
Which of the following are the most important parts of a centrifugal pump ?
Diffuser is a part of which of the following types of pump ?
Which of the following two statements are not true for Positive-Displacement Pumps ?
(A) Positive-displacement pumps demonstrate high discharge pressures and low flow rates
(B) The output flow is proportional to pump speed.
(C) Such pump cannot be used for metering applications
(D) Relief valve must not be provided to handle Very high head pressures
Choose the correct answer from the options given below :
Which of the following refrigerant is also called as Freon 22 ?
Choose the correct sequence to denote the refrigeration cycle in a domestic refrigerator.
(A) Evaporator
(B) Compressor
(C) Condenser
(D) Expansion device
Choose the correct answer from the options given below :
Which of the following does not work on the principle of Bernoulli’s equation ?
Which of the following principle states that the intensity of pressure at any point in a liquid at rest is same in all directions ?