This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Examples of Steady Flow Processes”. 1. What does a nozzle do? a) decreases the velocity of a fluid at the cost of its pressure gain b) increases the velocity of a fluid at the cost of its pressure drop c) increases the velocity … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Mass Balance and Energy Balance in a Simple Steady Flow Process”. 1. Equation of continuity comes from a) conservation of energy b) conservation of mass c) conservation of work d) conservation of heat 2. In a flow process, the work transfer may be … Read more
This set of Thermodynamics Questions and Answers for freshers focuses on “Specific Heat at Constant Volume and Pressure and Control Volume”. 1. The specific heat of a substance at constant volume is defined as the rate of change of ___ with respect to ___ a) specific internal energy, temperature b) work, pressure c) specific internal … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Enthalpy”. 1. The enthalpy of a substance(denoted by h), is defined as a) h=u-pv b) h=u+pv c) h=-u+pv d) h=-u-pv 2. In a constant volume process, internal energy change is equal to a) heat transferred b) work done c) zero d) none of … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Energy”. 1. Energy is a a) point function b) property of the system c) extensive property d) all of the mentioned 2. The specific energy, e=E/m is an extensive property. a) true b) false 3. (m*V*V)/2 gives the a) macroscopic kinetic energy b) … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “First Law for a Closed System”. 1. Energy has different forms which include a) heat b) work c) all of the mentioned d) none of the mentioned 2. Work input is directly proportional to heat and the constant of proportionality is called a) … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Heat Transfer”. 1. The transfer of heat between two bodies in direct contact is called a) radiation b) convection c) conduction d) none of the mentioned 2. Heat flow into a system is taken to be ____, and heat flow out of the … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Conduction, Convection and Radiation”. 1. The sun shines on a 150 m2 road surface so it is at 45°C. Below the 5cm thick asphalt(average conductivity of 0.06 W/m K), is a layer of rubbles at 15°C. Find the rate of heat transfer to … Read more
This set of Thermodynamics Interview Questions and Answers focuses on “Other types of Work Transfer-2”. 1. Find the rate of conduction heat transfer through a 1.5 cm thick board(k = 0.16 W/m K), with a temperature difference of 20°C between the two sides. a) 113 W/m2 b) 413 W/m2 c) 313 W/m2 d) 213 W/m2 … Read more
This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Other types of Work Transfer-1”. 1. The current flow, I, in amperes, is given by I=(dC)/(dτ) a) dC is the charge crossing a boundary b) time taken is dτ c) c is the charge in coulombs and t is time in seconds d) … Read more
