Top 550+ Solved Thermal Engineering 2 MCQ Questions Answer
Q. Critical pressure ratio is ratios of pressures at discharge.
a. minimum
b. none of the mentioned
c. optimum
d. maximum
Q. Ratio of critical pressure to inlet pressure in known as
a. none of the mentioned
b. pressure ratio
c. critical pressure ratio
d. isoentropic pressure ratio
Q. The exit velocity in the nozzle increases as per
a. stagnation point
b. continuity equation
c. prandtl number
d. newton’s law
Q. With the increase in pressure, the exit velocity
a. decreases
b. increases
c. same
d. independent
Q. The Prandtl Number approximates
a. momentum diffusivity to thermal diffusivity
b. thermal diffusivity to momentum diffusivity
c. shear stress to thermal diffusivity
d. thermal diffusivity to kinematic viscosity
Q. Which among the following is the formula for volumetric flow rate?
a. q = v/a
b. q = av
c. q = a+v
d. q = a-v
Q. Which among the following is the formula for mass flow rate?
a. q = m/p
b. q = mp
c. q = m + p
d. q = m – p
Q. Compressible flow is a flow that deals with
a. fluid temperature
b. fluid pressure
c. fluid density
d. fluid geometry
Q. Compressible flow mainly deals with
a. solid dynamics
b. liquid dynamics
c. gas dynamics
d. solid and liquid dynamics
Q. Which among the following is an assumption of the compressible flow?
a. resistance to flow of object
b. no-slip condition
c. known mass flow rate
d. resistance to flow of heat
Q. What is Mach number?
a. speed of object * speed of sound
b. speed of object /speed of sound
c. speed of object + speed of sound
d. speed of object- speed of sound
Q. Which of the following kinetic friction is smaller?
a. limiting friction
b. static friction
c. rolling friction
d. sliding friction