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93+ Design Engineer Interview Questions And Answers

Designing ➔ Design Engineering Job Interview Questions and Answers

Design Engineer interview preparation guide for freshers and experienced professionals. Explore these number of Design Engineering frequently asked questions(FAQs) extracted from many job interviews

★ Tell me what does F.O.F. stand for in piping design?
★ How do you deal with stress as Design Engineer?
★ Tell me what is the role of nitrogen in welding?
★ Tell me why gas containers are mostly in a cylindrical shape?
★ Do you know why gas containers are mostly cylindrical in shape?
★ Explain me what does 8.8 mark on the bolt signify?
★ Tell me what is annealing?
★ Do you know what is torque?
★ Tell me what is the ratio of specific heat of air?
★ Tell me where pneumatic system is used?
★ Tell me what are jigs and fixture?
★ Do you know what kind of pipes are used for steam lines?
★ Tell me what does Green field project mean?
★ Explain me what is a Process Flow Diagram?
★ Tell me what do you understand by the Hooke`s Coupling what are its purposes?
★ What is the difference between pipe and a tube?
★ Tell me between steel, copper and brass, which conduct faster heat?
★ Tell me what are the benefits of GD & T?
★ Explain me what kinds of pipes are used for steam lines?
★ Explain why are LNG pipes curved?
★ Explain me what is ductile-brittle transition temperature?
★ Name different types of fits?
★ Tell me what are the advantages of DTSI over normal engines?
★ What is the formula of heat loss in a pipe?
★ Tell me what is DTSI? Why it is used in motor bikes?
★ Explain me what is a micron?
★ Why are manhole covers usually elliptical?
★ Tell me what are the advantages of gear drive?
★ Tell me how is martensite structure formed in steel?
★ Explain me what is a positive displacement pump?
★ Tell me what is a cotter joint?
★ Explain me what kind of materials should be used for shafts manufacturing?
★ Explain what minerals are used in the manufacture of cars?
★ Explain me what is a time and motion theory?
★ Explain me what is the difference between torque and power?
★ Tell me which is the hardest material on earth?
★ Tell me why diesel engine is known as high torque and petrol engine as high speed engine?
★ Tell me why is the back wheel of a tractor bigger than the front wheel?
★ Explain me what is the difference between projectile motion and a rocket motion?
★ Explain me what are the differences between pneumatics and hydraulics?
★ Explain me how pipe flanges are electrically insulated?
★ Tell me what causes white smoke in two stroke locomotive engines?
★ Tell me what is extrued aluminum?
★ Tell me what does angular momentum mean?
★ What is Otto cycle?
★ Tell me what product design encompasses?
★ Explain me what are the different types of springs and explain them briefly?
★ Explain me what are the assumptions made in simple theory of bending?
★ Tell us why do heavy vehicles use diesel engine?
★ Please explain what do you understand by the concept of a 6 stroke engine?
★ Tell me what is a process flow diagram?
★ Do you know what is PS?
★ Tell me one unit of BTU is how many Joules?
★ Tell me which instrument measures speed in a car?
★ Tell me what is meant by gear ratio?
★ Tell me what is ferrite?
★ Explain me what is gear ratio?
★ Tell me what is enthalpy?
★ Explain what is isometric drawing?
★ Tell me what is representative elementary volume?
★ Tell me what is the mechanical advantage of a double pulley?
★ Tell me why would you use hydraulics rather than pneumatics?
★ Tell me what is the difference between shear center flexural center of twist and elastic center?
★ Tell me cooling is an essential aspect to address in engine design. What are the effects of overcooling?
★ Tell me how can two different types of fuel engines with the same capacity have different outputs?
★ Tell me why should a chain drive be used over a belt or rope driven drive? State pro`s and con`s?
★ Explain what are the advantage and disadvantage of using LPG in a car?
★ Explain the laws of thermodynamics and its importance of in Mechanical Engineering?
★ Tell me what is a Newtonian fluid?
★ Tell me how does iron ore turn into steel?
★ As you know air is a bad conductor of heat and the sun is always emitting steadily. Why is it hotter in the summer?
★ Tell me what is the need of GD&T?
★ Tell me why is stress considered important in a shaft?
★ Explain how many types of suspensions are used in automobiles?
★ What is the types of sensors?
★ Tell me who invented the four stroke engine? According to you which one is more efficient, four stroke engine or a two stroke engine and why?
★ Explain me what is a bearing? What are the different types of bearings?
★ Explain Newton's three laws of Motion?
★ Tell me what are the points in the stress strain curve for steel?
★ Explain me is it the stress that, produces strain or strain produces stress?
★ Tell me what is an ortographic drawing?
★ Tell me which conducts heat faster steel copper or brass?
★ Tell us what is a uniformly distributed load?
★ Tell me what is the alloy of tin and lead?
★ Tell me the second law of thermodynamics?
★ Tell me if you are provided a bottle then how will you increase its strength?
★ Tell me what is GD&T and Who introduced the concept of GD&T?
★ Tell me what is the percentage of carbon present in pig iron?
★ Tell me why re-heater is used in gas turbine?
★ Tell me the difference between projectile motion and rocket motion?
★ Tell me what does a pump develop?
★ Tell me what is Hess law?
★ Tell me what is mechanism?

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