Designing :: Design Engineer Job Interview Questions and Answers

Design Engineering Frequently Asked Questions in various Design Engineer job interviews by interviewer. The set of questions are here to ensures that you offer a perfect answer posed to you. So get preparation for your new job interview

1 Tell me what is mechanism?
2 Tell me what is Hess law?
3 Tell me what does a pump develop?
4 Please explain what do you understand by the concept of a 6 stroke engine?
5 Tell me the difference between projectile motion and rocket motion?
6 Tell me why re-heater is used in gas turbine?
7 Tell me what is the percentage of carbon present in pig iron?
8 Tell me what is GD&T and Who introduced the concept of GD&T?
9 Tell me if you are provided a bottle then how will you increase its strength?
10 Tell me the second law of thermodynamics?
11 Tell me what is the alloy of tin and lead?
12 Tell us what is a uniformly distributed load?
13 Tell me which conducts heat faster steel copper or brass?
14 Tell me what is an ortographic drawing?
15 Explain me is it the stress that, produces strain or strain produces stress?
16 Tell me what are the points in the stress strain curve for steel?
17 Explain Newton's three laws of Motion?
18 Explain me what is a bearing? What are the different types of bearings?
19 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?
20 What is the types of sensors?
21 Explain how many types of suspensions are used in automobiles?
22 Tell me why is stress considered important in a shaft?
23 Tell me what is the need of GD&T?
24 As you know air is a bad conductor of heat and the sun is always emitting steadily. Why is it hotter in the summer?
25 Explain me what are the differences between pneumatics and hydraulics?
26 Tell me how does iron ore turn into steel?
27 Tell me what is a Newtonian fluid?
28 Explain the laws of thermodynamics and its importance of in Mechanical Engineering?
29 Explain what are the advantage and disadvantage of using LPG in a car?
30 Tell me why should a chain drive be used over a belt or rope driven drive? State pro`s and con`s?
31 Tell me how can two different types of fuel engines with the same capacity have different outputs?
32 Tell me cooling is an essential aspect to address in engine design. What are the effects of overcooling?
33 Tell me what is the difference between shear center flexural center of twist and elastic center?
34 Tell me why would you use hydraulics rather than pneumatics?
35 Tell me what is the mechanical advantage of a double pulley?
36 Tell me what is representative elementary volume?
37 Explain what is isometric drawing?
38 Tell me what is enthalpy?
39 Explain me what is gear ratio?
40 Tell me what is ferrite?
41 Tell me what is meant by gear ratio?
42 Tell me which instrument measures speed in a car?
43 Tell me one unit of BTU is how many Joules?
44 Do you know what is PS?
45 Tell me what is a process flow diagram?
46 Tell us why do heavy vehicles use diesel engine?
47 Explain me what are the assumptions made in simple theory of bending?
48 Explain me what are the different types of springs and explain them briefly?
49 Tell me what product design encompasses?
50 What is Otto cycle?
51 Explain me how pipe flanges are electrically insulated?
52 Tell me what does angular momentum mean?
53 Tell me what is extrued aluminum?
54 Tell me what causes white smoke in two stroke locomotive engines?
55 Explain me what is the difference between projectile motion and a rocket motion?
56 Tell me why is the back wheel of a tractor bigger than the front wheel?
57 Explain me what kind of materials should be used for shafts manufacturing?
58 Tell me why diesel engine is known as high torque and petrol engine as high speed engine?
59 Explain me what is a time and motion theory?
60 Tell me which is the hardest material on earth?
61 Explain me what is the difference between torque and power?
62 Explain what minerals are used in the manufacture of cars?
63 Tell me what is a cotter joint?
64 Explain me what is a positive displacement pump?
65 Tell me how is martensite structure formed in steel?
66 Tell me what are the advantages of gear drive?
67 Why are manhole covers usually elliptical?
68 Explain me what is a micron?
69 Tell me what is DTSI? Why it is used in motor bikes?
70 What is the formula of heat loss in a pipe?
71 Tell me what are the advantages of DTSI over normal engines?
72 Name different types of fits?
73 Explain me what is ductile-brittle transition temperature?
74 Explain why are LNG pipes curved?
75 Explain me what kinds of pipes are used for steam lines?
76 Tell me what are the benefits of GD & T?
77 Tell me between steel, copper and brass, which conduct faster heat?
78 What is the difference between pipe and a tube?
79 Tell me what do you understand by the Hooke`s Coupling what are its purposes?
80 Explain me what is a Process Flow Diagram?
81 Tell me what does Green field project mean?
82 Tell me what are jigs and fixture?
83 Do you know what kind of pipes are used for steam lines?
84 Tell me where pneumatic system is used?
85 Tell me what is the ratio of specific heat of air?
86 Do you know what is torque?
87 Tell me what is annealing?
88 Explain me what does 8.8 mark on the bolt signify?
89 Do you know why gas containers are mostly cylindrical in shape?
90 Tell me why gas containers are mostly in a cylindrical shape?
91 Tell me what is the role of nitrogen in welding?
92 How do you deal with stress as Design Engineer?
93 Tell me what does F.O.F. stand for in piping design?

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