Mechanical Engineering Interview Questions And Answers for IT freshers
Introduction to Mechanical Engineering:
Mechanical engineering is the application of physical principles to the creation of useful devices, objects and machines. Mechanical engineering is deals with the applied mechanics, dynamics, thermodynamics, fluid mechanics, electricity, production technology. The branch mechanical engineering applies principles of engineering, physics and material science for the design, analysis, production, and operation of machinery, manufacturing and maintenance of mechanical systems.
In addition to these core principles, mechanical engineers use tools such as computer aided design (CAD), and product life cycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, Aircraft, watercraft, robotics, medical devices, weapons, and others.
Mechanical engineering is a professional programmer which helps students to understand the working mechanisms of heavy tools and machineries.
What is Mechanical Engineering?
What are the responsibilities of Mechanical engineer?
Mechanical engineers use many types of tools, engines, and machines. Examples include the following:
Can you define mechanism?
What is the function of thermostat in cooling system of an engine?
What is the difference between scavenging and supercharging?
What is the difference between supercharger and turbocharger?
What is extruded aluminum?
What is torque?
What happen when we put petrol in diesel engine?
Why are tyres black?
Why do heavy vehicles use diesel engine?
Define slenderness ratio?
Can you define Bauschinger effect?
Define torsional rigidity?
Difference between shear stress and bending stress?
Explain the second law of thermodynamics?
What is cotter joint?
What is the alloy of tin and lead?
Explain Otto cycle?
What is gear ratio?
What is annealing?
What is uniformly distributed load?
What are the difference between pneumatic and hydraulics?
What is enthalpy?
What are the advantages of gear drive?
What is Newtonian fluid?
What is the range of engine efficiency in case of two stroke engine?
What do you mean by CC of engine?
Why gas containers are mostly in cylindrical shape?
What are the points in the stress strain curve in steel?
What is the role of nitrogen in welding?
What kind of pipes is used in the stream lines?
What is the critical speed in turbine?
What is the difference between ferrite, austenite?
What is stellite?
What type of rubber is used in the car tyres?
What is the difference between brass and bronze?
What are the causes of failure of boiler tubes?
What are the causes of failure of superheated tubes?
What is fuel ratio?
What is the difference between isotropic and anisotropic materials?
What are orthotropic materials?
What is the relationship between COP of heating and cooling?
What is pitting? How it is caused?
Why manhole in vessels is usually elliptical in shape?
What is an orthographic drawing?
Explain the difference between AFBC, BFBC, PFBC and PCFB in regard to fluidized bed technologies?
What are thermal neutrons?
What is pitching in the suspension system?
What is the difference between pipe and tube?
What is a bearing? What are the different types of bearings?
What is the purpose of Volute casing in centrifugal pumps?
What do you understand by the concept of 6 stroke engine? Explain how it works?
Which theories of failures are used for ductile materials, and brittle materials?
What are the different values that need to be determined in order to design a cylinder for an ICE?
Which is the common element between brass and bronze?
What is the difference between basic hole and basic shaft?
What do you mean by independent suspension?
Explain the reason that why big tyres are used in rear of vehicles?
What are considerations taken into account while creating a piston head?
How can the reaction of support of a frame be evaluated?
What are the Pros and Cons of using LPG in a car?
Can you define Octane number and Cetane number?
What is the need of riser in moulding?
What are the Most Important Software’s for Mechanical Engineers?