Thermal Engineering II Set 16

Mechanical Engineering

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This set of Thermal Engineering 2 Multiple Choice Questions & Answers (MCQs) focuses on Thermal Engineering II Set 16

Q1 | Compressible flow mainly deals with
Q2 | The coefficient of kinetic friction is less than the coefficient of static friction.
Q3 | Which among the following is an assumption of the compressible flow?
Q4 | What is Mach number?
Q5 | Which of the following kinetic friction is smaller?
Q6 | A cubical block rests on an inclined plane of μ = 1/√3, determine the angle of inclination when the block just slides down the inclined plane?
Q7 | A mass of 4kg rests on a horizontal plane. The plane is gradually inclined until at an angle θ= 15° with the horizontal, the mass just begins to slide. What is the coefficient of static friction between the block and the surface?
Q8 | A scooter weighs 120kg f. Brakes are applied so that wheels stop rolling and start skidding. Find the force of friction if the coefficient of friction is 0.4.
Q9 | How is friction due to air reduced?
Q10 | Friction can be increased by                        
Q11 | When moving along a curved path, he
Q12 | When a gas is pushed through a pipe, the gaseous molecules are                    by the pipe’s walls
Q13 | In fluid dynamics, the velocity of the fluid in the stagnation point is
Q14 | If the speed of sound is much                   than that of the gas, the gas density will stay constant.
Q15 | Isentropic nozzle flow states about the movement of a gas or fluid through a narrow orifice without an increase or decrease in
Q16 | To refrain from separation in subsonic nozzles, the expansion angle must not be more than            
Q17 | Gas flows through the nozzle from an area of            pressure (called the chamber) to one of            pressure
Q18 | Converging-diverging nozzle is also known as                      
Q19 | When the pressure chamber is big, the flow velocities are                    
Q20 | For a compressible, ideal gas, mass flow rate depends on parameters such as flow area, pressure, temperature, properties of the gas, and                    
Q21 | On what basis are fire and water tube boilers are classified?
Q22 | Stirling boiler is an example of which type of boiler?
Q23 | Which of these is a stationary boiler?
Q24 | Which of these is a mobile boiler?
Q25 | Are boilers defined on the basis of heat source.
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