List of practice Questions

What is the purpose of a fuel injection system in the combustor?
The critical mass flow rate through a converging-diverging nozzle
For a given rotational speed of a rotor of an axial flow compressor, as the fan tip radius increases, the centrifugal stress on the fan blade
Pressure gradient in the flow direction
If there is no change in static enthalpy and static pressure across a rotor, then the turbo-machine is called
In a turbojet engine, thrust specific fuel consumption ________ with increasing compressor pressure ratio and __________ with increasing turbine inlet temperature (within range of operation).
Characteristic velocity of a rocket engine is equal to
Specific impulse of a rocket
The concept of erosive burning in solid rocket propellant operation pertains to
Which one of the following is not an example of an adapted nozzle?
The laminar flame speed in a combustion chamber of a jet engine is
For isentropic flows the value of work-done factor for a turbo machine (\(\Psi\)) will be
Which of these analyses needs a stretched grid?
Numerical panel methods are applicable for
Which type of grids is the best for flow over an airfoil?
The resultant of two forces \( P \) and \( Q \) (such that \( P>Q \)) acting along the same straight line, but in opposite direction, is given by:
Mass moment of inertia of a thin rod about its one end is ________ the mass moment of inertia of the same rod about its mid-point.
The ratio of static friction to dynamic friction is always:
Which one of the following is an open pair?
The train value of a gear train is:
A porter governor is a______ governor.
Consider the following statements about theory of simple bending:
(i) Beam material is isotropic and homogeneous
(ii) Elastic modulus of beam material is more in tension than in compression
(iii) Radius of curvature is large Of these statements,
If the diameter of a shaft is subjected to torque alone is doubled, then the horse power can be increased to:
A higher value of flexural rigidity indicates:
Match list I with list II and select the correct answer using the code given: 
Shaft Arrangement