Latest Mechanical Interview Questions

Latest Mechanical Interview Questions

          1.     What is the inclination of helix teeth with gear axis?

          2.     Explain an involute curve?

          3.     What do you understand by Tolerance, and explain forms? 

          4.     What is the procedure of calculating clearance?

          5.     Define “Dimension”?

         6.     What is surface finish?

         7.     What is major difference between Interference clearance and Transition    

               Clearance?        

        8.     Explain 5 terminology of Spur Gear?

        9.     What do you understand by Gear Ratio?

       10.     Draw the symbol of “Circularity & Cylindricity  and  differentiate 

             between them?

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                  Difference between Petrol Engine VS Diesel Engine

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Difference between Petrol Engine VS Diesel Engine

Difference between Petrol Engine VS Diesel Engine

Petrol Engine

            1.      Petrol engine takes a suitable mixture of Petrol and Air during suction stroke.

            2.      The compression ratio is approximately 6 to 10.

            3.      It is easy to start a petrol engine, since it has low compression ratio.

            4.      Petrol engine have more over heating problem due to low thermal efficiency.

            5.      Maintenance cost of petrol engine is less.

            6.      Running cost of petrol engine is high because of high fuel cost.

            7.      Petrol engine requires spark plug to ignite the mixture of fuel.

            8.      Such engines are usually light duty vehicles.

            9.      Generally, Petrol engines are high speed engines.

          10.    It’s based on Otto cycle.

Diesel Engine

1.      A diesel engine takes only air during the suction stroke.

2.      The compression ratio of diesel engine is approximately 14 to 25.

3.      Starting of diesel engine is difficult due to high compression ratio.

4.      These engines have less over heating problem as compared to Petrol engine.

5.      Maintenance cost is high, compared to petrol engine.

6.      Running cost of diesel engines is less due to cheaper fuel.

7.      A fuel injector injects fuel in spray or fine atomise form, at temperature about 600 *C.

8.      These engines are generally employed with heavy duty engines.

9.      These engines are low speed engines as compared to petrol engines.

10. Diesel engine is based on Diesel cycle.

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10 Frequently Asked AutoCAD Questions

10 Frequently Asked AutoCAD Questions

     1.     Explain all circle method with example?

     2.      Explain use of hatching and gradient command in AutoCAD?

    3.      Lengthen command in AutoCAD? Explain it.

    4.     What is Function key for Ortho, Snap and Osnap.

    5.      How to change style to Isometric what is the shortcut key?

    6.     What is the difference between Divide and Measure?

   7.     Short keys of following commands (any 10)

 1.     Construction line       2.Hatch      3.Dimension style 

4. Chamfer                   5.Rectangle   6.Spline

7. Properties                  8.boundry       9.Array 

  

10. Region                   11.Orhto       12.lengthen

    8.      Define any two

i.                    How to change the color of Background for graphic area. ?

ii.                  Short key to on/off command line. ?

iii.                How to change the size of dimension text. ?

    9.       What is the difference between Polyline & Line.?

   10.          What is the Difference between Block and Wblock?.  

    

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                     Mechanical Engg. Interview Questions

                     Auto CAD Important Interview Questions

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10 Equations that Changed the World

           10 Equations that Changed the World

We always remain so curious about new technologies and innovations. After 19^th century we saw rapid development in Technology, new discoveries/ development in Electronic media, Aerospace, Automobile sector and many more.

Have you ever imagine what was the role of some mathematics equations in this development of human being? Our Mathematics books are filled with so many important equations, but most of them change our life.

Some of them are:-

            

      7.     Newton’s Law of motion

 8.     Calculus

 9.     Bernoulli’s Theorem   

10.    Wave Equation

11.     The square root of minus 1

12.     Information Theory

13.     Trigonometry equations

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Mechanical Engg. Interview Questions 

Mechanical Engg. Industrial Test Paper

AutoCAD Interview Queastions

Mechanical Engg. Interview Questions

Mechanical Engg. Interview Questions -2017

1.    Write types of threads?

2.     In Acme thread angle is ______?

3.     In Metric thread angle is _______?

4.     Mention types of callipers and their names?

5.     Define “Speed”?

6.    Sine Bar works on principle of _______?

7.    What is difference between Jigs and Fixtures?

8.     What is stiffness?

9.     “HSS” stands for _______?

10.   Types of Gears?

11.    Define “Mass”?

12.  What is difference between “Mass” & “Weight”?

13.   Sheet size of A2 paper is ________mm?

14.  Sheet size of A4 paper is ________mm?

15.     Define “Line”?

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Auto CAD Important Interview Questions

Mechanical Engineering Industrial Test Questions 2017

Auto CAD Important Interview Questions

Auto CAD Important Interview Questions 

Auto CAD is one of the most powerful software build to detailed design and shape the 2 D Drafting as well as 3 D solid modelling. Auto CAD is frequently used in various sectors of engineering like Mechanical, Civil, Electrical etc. Hence, The scope of Auto CAD is very bright.

Here are some basics questions regarding Auto Cad.

1. What are the three products of Auto desk Company?

2. Explain Relative Coordinate system & Direct Distance Entry method with example.

3. What is the use of template and how we will create it?

4. Explain under Arc command (Start, Center And Length method) and with diagram?

5. What is tolerance? Explain it?

6. Limitation of manual drafting?

7. Explain 3 D Modeling and what the three major software for 3 D solid Modeling.                             

8. In Which command we can set Degree / Min/ second?

9. Write short key of following symbol?

            1.  n           2. ~     3. `

10. Explain all circle method with example?

11. Explain use of hatching and gradient command in Auto CAD?

12. Lengthen command in Auto CAD? Explain it.

13. What is Function key for Ortho, Snap and O snap.

14. How to change style to Isometric what is the shortcut key?.

15. What is the difference between Divide and Measure?.

16. Short keys of following commands (any 10)

     i. Construction line                    
     ii. Hatch                         
     iii. Dimension style 

     iv. Chamfer                                  
     v. Rectangle                   
     vi. Spline

     vii. Properties                                
     viii. boundary                     
     ix. Array    

     x. Region                                    
     xi. Orhto                        
     xii. lengthen

17. Define any two 

      i.   How to change the color of Background for graphic area?

      ii.  Short key to on/off command line. ?

      iii. How to change the size of dimension text. ?

18.    What is the difference between Poly line & Line.?

19.     What is the Difference between Block and W block?.

Mechanical Engineering Industrial Test Questions 2017

Mechanical Engg. Industrial Test Paper 2-2017

 NOTE: - Each Question contains 2 Marks.      
Time: 10 Minutes

1.    Write 5 Parts of Lathe  Machine

1._____2.____3.____4.____5._____?

2.     Sheet size of ______paper is 420x594.

3.      20±.025 is an example of______________.

 A) Unilateral Tolerance        B) Bilateral Tolerance

4.     Write 5 Lathe machine operations 1.____2.___3.____4.___5.____?

5.     6 Inch = ________Feet?

  6. Draw Front, Top, Side views of given drawing in 1^st Angle.

 7. Draw Orthographic views of given drawing in 3^rd Angle.

8. Factor of Safety (FOS) is ratio of ________?

9. Mention two tool Materials name  
    1._______2.______.

Mechanical Engineering Industrial Test Questions 2017

Mechanical Engg. Industrial Test Paper-2017

NOTE: - Each Question contains 2 Marks.          
Time: 20 Minutes

1.    Write five workshops Machines Name. A.____B.____C._____D.____E._____

2.    Write 5 workshops measuring Instrument name.

      A.____B._____C._____D._____E.___

3.    Sketch Standard symbols of 1^st Angle & 3^rd Angle.

4.    304.8 mm = ____________Feet?

5.    1 Inch =____________mm?

6.    Least Count of Vernier Caliper is ________mm.

7.    Sheet size of A3 paper is ______mm.

8.    Least count of micrometer is ____mm?

9.     Write types of threads? 
     1.___2.___3.___4.___5.___

10.      In Acme thread angle is ____?

11.      In Metric thread angle is _____?

12.      Mention types of calipers and their names?

13.      Define “Speed”?

14.       Sine Bar works on principle of ______?

15.       Write boiler accessories 1.____2.___3.____4.____?

  16.    Write boiler Mountings 1.___2.___3.___4.____?