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engineering
introduction mechanical engineering

Questions and Answers of Introduction Mechanical Engineering

List the characteristics of special purpose machine tools.
Explain the working principle of a lathe with a neat sketch.
How do you classify a lathe? Explain briefly.
Describe the principle parts of a lathe with a neat sketch.
How a lathe is specified? Explain with a neat diagram.
List the various lathe accessories.
Differentiate between live and dead centres of a lathe.
List the various lathe tools.
What are the various lathe operation?
What is a shaper? What are its principal parts? Explain with a neat sketch.
Explain the working principal of a shaper.
How shapers are classified?
How a shaper is specified?
Describe the quick return motion mechanism for a shaper.
What is the purpose of a drilling machine ? Explain its working principle.
How drilling machines are classified?
Explain the working of following drilling machines with a neat diagram:(a) General purpose drilling machine.(b) Pillar drilling machine.(c) Bench drilling machine.(d) Redial drilling machine.
How do you specify a drilling machine?
List the various drilling operations.
What are the main functions of a milling machine?
List the various types of milling machines.
Describe the construction and working of the following :(a) General purpose milling machine.(b) Vertical milling machine.
How the size of milling machine is specified?
Describe the various milling operations.
Describe the construction and working of a centre lathe.
Describe the various taper turning methods on a lathe.
Describe various types of slotters in brief.
How a slotter is specified?
Describe the main parts of a slotting machine.
Describe the various ram drive mechanisms of a slotler.
Describe the various slotter operations.
Describe various feed movements in a slotting machine.
Expalin the difference in operation between a planer and a shaper.
Describe the principal parts of a double housing planer.
What are the advantages of a planer ?
Explain the machining process with a neat sketch.
Explain the various elements of a single point cutting tool with a neat sketch.
Explain the two systems of designating a cutting tool.
Describe the various types of chips produced during metal machining.
What is the use of chip breakers ?
If the mass within the boundary of the system remains constant, it is called a ................ system.
In a closed system, only the ................ may transfer across its boundary.
The gas confined between a piston and cylinder is a/an ................ system.
If the mass as well as the energy transfer takes place across the boundary of a system, it is called a/an ................ system.
Air compressor is a/an ................ system.
In a/an ................ system, neither mass nor energy transfer takes place across its boundary.
Thermos flask is an example of ................ system.
In a ................, mass, momentum and energy may flow.
The thermodynamic properties which do not depend on the mass of the system are called ................ properties.
Temperature is an ................ property.
The thermodynamic properties which depend on the mass of the system are called ................ properties.
Potential energy is an ................ property.
A system consisting of a single phase is called ................ system.
Water and oil mixture is a ................ system.
A thermodynamic system passing through a series of states constitutes a ................ .
A transition in which a system changes from one state to another state is called .................
If the final state is identical with the initial state, it is called a ................ .
For a reversible process, ................ is zero.
Throttling is a/an ................ process.
Heat is energy in ................ .
Internal energy is an ................ property.
Work is a ................ function.
Heat is a ................ grade energy.
work is a ................ grade energy.
The value of Universal gas constant is ................ .
The first law of thermodynamics is called the law of conservation of ........................ .
According to first law of thermodynamics, ∲δQ = ........................
The first law of thermodynamics can be verified by the ........................ experiment.
The ........................ violates the first law of thermodynamics.
Specific internal energy, du = ........................ .
For a system undergoing a cycle, ∲(δQ - δW) = ........................
For a perfect gas, Cv = R(........................).
A flow process permit the transfer of mass and ........................ across its boundary.
A nozzle converts ........................ energy into ........................ energy.
A diffuser converts ........................ energy into ........................ energy.
For a nozzle, w = 0, and q = ........................ .
A turbine converts heat energy into ........................ .
The non – flow work, W = ........................ .
Work done in a steady flow process, W = ........................ .
Internal energy of a perfect gas is ........................ .
Heat cannot flow automatically from ............... to ............... body.
Gases cannot expand automatically from ............... pressure to ............... pressure.
Heat sink is a ............... temperature reservoir.
Thermal efficiency of a heat engine = ............... .
A heat pump removes heat from a ............... temperature body.
Kelvin- Planck and Clausius statements are ............... .
It is ............... to construct a PMM2.
The Carnot cycle consist of two reversible ............... and ............... processes.
............... heat addition is not possible.
Working within the same temperature limits, no engine can be more efficient than the ............... engine.
The efficiency of any reversible engine does not depend on the nature of the ............. .
Entropy is a ........................... of the system.
For a reversible adiabatic process, entropy change is .................... zero.
For an irreversible adiabatic process, entropy change is .................. zero.
Constant volume process is called ____________.
Constant pressure process is called ____________.
In a constant volume closed system, work done = _____________.
In an isobaric process, heat transfer is equal to change in __________.
In an isothermal process, change in internal energy = ____________.
A reversible adiabatic process is called _______________.

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