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163+ Mechanical Engineering Interview Questions And Answers

Engineering ➔ Mechanical Engineering Job Interview Questions and Answers

Build your Mechanical Engineering knowledge by exploring Mechanical Engineering Interview Questions and Answers. And get preparation for Mechanical Engineering job by our Mechanical Engineering guide, tips, tutorial and interview questions and answers.

► What is the materials of jib and cotter joints?
► What is extrued aluminum?
► What is the mechanical advantage of a double pulley?
► What is knurling?
► What is the date of first Titan launch from Cape Canaveral?
► What is the difference between blower and fan?
► Why is over-pressurizing an Air Conditioning system bad?
► How does hydraulic clutches work?
► Why will an ice cube placed in a cup of hot rotating water spin automatically faster than the water itself?
► What is the Congressional Space Medal of Honor?
► Will a steel cable become longer if it is heated while under load?
► What is the Law of Thermodynamics?
► Is it the stress that, produces strain or strain produces stress?
► How much is 1 KN in Kg?
► How does a super charger work in a car?
► Why do the radiators in your house click when you start the heating system?
► How can I see where pipes are behind the wall?
► How are the pneumatic system and the hydraulic system similar?
► What is the difference between an electric motor and an electric generator?
► What are some examples of a periscope?
► What does Green field project mean?
► Is pipe round because it provides the least area to volume ratio?
► Who built the Trans Alaska pipelene?
► How is a submarine able to submerge and surface?
► What is railroad track ballast?
► What is a turboprop engine?
► What is the strongest pistol in the world?
► What are examples of mechanisms?
► What color are thermal oil piping lines?
► How does hydraulics work?
► Is Knowledge of properties of engineering materials is significant in pattern making why?
► What is the role of nitrogen in welding?
► What causes white smoke in two stroke locomotive engines?
► Which country has the worlds most powerful tank?
► What is the difference between hydraulic oil and engine oil?
► Can you use motor oil in a hydraulic system?
► How much water pressure will come from gravity feed tank, which is 10 metres high?
► How many BTU per Hour equals 1 Ton of Air Conditioning?
► What does angular momentum mean?
► What do you mean by the term thread size Please explain what does 0.125 Inch stand for in 0.125 Inch NPT thread?
► What is the difference between upstream and downstream in a refinery?
► What does a rolling offset look like?
► What kind of paper airplane flies the farthest?
► What is the history on the invention of paper?
► Why do you need a keyway in the construction of a wall?
► How does an equal-arm balance work?
► Where do railway steam engines carry there water?
► Why are LNG pipes curved?
► What is wet corrosion and galvanic corrosion?
► What are the advantages of diesel engines?
► Which is first stress or strain?
► How do concrete pumps work?
► What is representative elementary volume?
► Is there a metal that does not contain iron?
► How can you convert air mass to air volume?
► What type of paper when made into a paper boat floats longest?
► Do you need to be an apprentice for mechanical engineering?
► What are different types of gate valves?
► What is the Density of plastic?
► What is an ortographic drawing?
► What is the difference between “Stress and Strain”?
► How is martensite structure formed in steel?
► How do you calculate cooling energy?
► Is a diesel engines maximum rpm limited by the diesel burn rate?
► How does a modern submarine move?
► What are some mechanical laboratory apparatuses?
► How does a hammer mill work?
► When was the first space rocket built?
► Why gas containers are mostly cylindrical in shape?
► Will going from a 3 tap to a 6 tap increase water pressure?
► Can an airplane fly without a tail?
► What instrument in a car measures its speed?
► What is wrap-around?
► What is a steam turbine diaphragm?
► How does a boat measure speed?
► What are examples of a first class lever?
► What are the advantages of powder metallurgy?
► In 1983 what changed about the length of the meter?
► What is the weight of 1m3 of seawater?
► How many litres did 1 cubic meter contains?
► What is a vee used for on the Vee Block?
► What is brain of the computer?
► Where pneumatic system is used?
► What is difference between mill and mill-drill?
► How do you convert 95 feet into square feet?
► What is a Process Flow Diagram?
► Why would some industries select pneumatics over hydraulic?
► How pipe flanges are electrically insulated?
► What is a slined joint?
► Who built the first rocket that Robert Goddard invented?
► Accelerometers measure acceleration. How do you measure the moment of inertia?
► What is a mechanism?
► What is the Device that converts sound energy into mechanical energy?
► Which conducts heat faster steel copper or brass?
► Did Elevation affect weight?
► How can heat be applied to acrylic?
► How is natural gas better than LPG?
► What is 1810 stainless steel?
► What are the types of sensors and their explanation?
► What is a clock maker called?
► What is the coefficient expansion of transformer oil?
► Why is thick steel wire stronger than thin steel wire?
► What are the advantages of gear drive?
► What is a machine shop?
► What is the world is hardest metal?
► How does iron ore turn into steel?
► What is isometric drawing?
► What are the uses of windmill?
► How fast is a jet plane?
► Who invented springs?
► What is meant by payload for aircraft?
► Who invented the four-stroke engine?
► What was the spinning jenny?
► What is the formula for Heat loss in a pipe?
► Why would you use hydraulics rather than pneumatics?
► What is a positive displacement pump?
► What is enthalpy?
► What are the differences between pneumatics and hydraulics?
► What is a uniformly distributed load?
► What is the main purpose of an airspeed indicator in an aircraft?
► What is the full form of WCB in ASTM?
► Why is the suction pipe of vapor compression and refrigeration system insulated?
► What does F.O.F. stand for in piping design?
► What is the alloy of tin and lead?
► What is the gas constant R for air?
► What are the thermal conductivity properties of brass?
► What is a cotter joint?
► How does a Coal Power station produce electricity?
► How does length and initial angle affect the period in a simple pendulum?
► What is jet plane?
► What is the difference between the flight of a plane and a helicopter?
► Is shear thinning fluids and the linear viscoelastic fluids are the same?
► What is the difference between projectile motion and a rocket motion?
► What is ferrite?
► What is the difference between shear center flexural center of twist and elastic center?
► What kinds of pipes are used for steam lines?
► What is a pneumatic system?
► Where do you put the oil in a compressor?
► Does the position of a chicken egg affect the amount of weight it can withstand?
► How do you repair a hydraulic jack?
► If the black box flight recorder is never damaged during a plane crash, why not the whole airplane made out of that stuff?
► How do motion detectors work?
► How do you determine what suction pressure should be in R22 air conditioning compressors suction line?
► What are the minerals needed to make or build a car?
► Is it possible for something to explode in space like in the movies?
► What is a feasibility study?
► What is the most important, or helpful,project that you have contributed to?
► What is the most important thing you have achieved as an engineer?
► When did you decide to  become and mechanical engineer and why?
► What school did you attend in engineering?
► Do you work for many hours each day?
► What was the hardest part of obtaining your engineering degree?
► Do you receive good benefits as an engineer job?
► Does the rate increase by experience or number of years worked?
► What is the average salary rate in mechanical engineering job?
► What are your specific job requirements in mechanical engineers?
► How many mechanical engineers work with you at your place of employment?
► Is there a high demand for mechanical engineers right now?
► What are some of the projects you are currently working on in Engineering?
► Where do you work in Engineering company?
► Did you have a favorite project that you had to do while in school?
► What was the hardest class in Engineering you had to take?
► How many years did it take for you to complete school?

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