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. 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 mainly deals with
a. solid dynamics
b. liquid dynamics
c. gas dynamics
d. solid and liquid dynamics
Q. An air preheater is installed ___________
a. between the economiser and chimney
b. before the superheater
c. before the economiser
d. none of the mentioned
Q. What is the function of a flywheel?
a. to convert reciprocating motion of the piston into rotary motion
b. to prevent fluctuation of speed
c. to keep the engine speed uniform at all load conditions
d. to convert rotary motion of the crankshaft into to and fro motion of the valve rod
Q. Which of the following is a water tube boiler?
a. lancashire boiler
b. cochran boiler
c. babcock & wilcox boiler
d. locomotive boiler