MECHANICAL INTERVIEW QUESTION PAGE 1
What is mechanical designing ???
مکینیکل انجینئرنگ کیا ہے؟ مکینیکل انجینئرنگ انجینئرنگ کی شاخ ہے جو مکینیکل سسٹم میں ڈیزائننگ ، تعمیر ، ترقی اور تیاری سے متعلق ہے۔
The part of Engineering managing the Design, Construction, and utilization of Machines.
1. Which is better stainless steel or mild steel.?
Stainless steel
2. Which instrument used to measure the current in circuit. ?
Ammeter
3. What is least count of Vernier caliper.?
0.01mm.
4. Which instrument is used to measure rotation speed of shaft.?
Tachometer.
5. Feeler gauge is used to measure b/w two parts.?
Clearance
6. How many meters in 1 kilometer.?
1000 meter
7. How many cm in 1 inch.?
2.54 CM
8. How many millimeter in 1 inch.?
25.4mm
9. Which tool is used to cutting internal thread.?
Tap
10. What happen if pump run in reverse direction.?
A-impeller lock nut open.
B-Pump not lift the liquid.
C-Both
مکینیکل انجینئرنگ کیا ہے؟ مکینیکل انجینئرنگ انجینئرنگ کی شاخ ہے جو مکینیکل سسٹم میں ڈیزائننگ ، تعمیر ، ترقی اور تیاری سے متعلق ہے۔
The part of Engineering managing the Design, Construction, and utilization of Machines.
1. Which is better stainless steel or mild steel.?
Stainless steel
2. Which instrument used to measure the current in circuit. ?
Ammeter
3. What is least count of Vernier caliper.?
0.01mm.
4. Which instrument is used to measure rotation speed of shaft.?
Tachometer.
5. Feeler gauge is used to measure b/w two parts.?
Clearance
6. How many meters in 1 kilometer.?
1000 meter
7. How many cm in 1 inch.?
2.54 CM
8. How many millimeter in 1 inch.?
25.4mm
9. Which tool is used to cutting internal thread.?
Tap
10. What happen if pump run in reverse direction.?
A-impeller lock nut open.
B-Pump not lift the liquid.
C-Both
12. What is all univrsl coupling?
This coupling is utilized to interface two shafts whose tomahawks are slanted to one another. It comprises of a couple of pivots, associated by a cross shaft.
13. Characterize pitting?
It is erosion that goes to a little opening in the metal.
14. What do you comprehend by heat treatment?
It is an activity that includes warming and cooling interaction of metals to change its properties.
15. Characterize Fluid?
A liquid is a substance that can't stay very still under the activity of any shear power.
16. What Is The Difference Between A Machine And A Mechanism ?
A component comprises of connections shaping a compelled kinematic chain. Its capacity is essentially to communicate or change movement. A machine is an instrument yet here we are worried about powers to be communicated and it is utilized to adjust mechanical work.
17. What is Pump ?
Convert mechanical energy to the liquid.
18. What is a turbine?
The turbine does the inverse.
19. What is the contrast between the turbine and the siphon?
Imoves stream energy of liquid to the mechanical energy.
20. What is the distinction machine and motor?
Motor proselytes heat energy to Mechanical Energy however machine changes all types of energy over to mechanical energy aside from heat energy.
17. What is Pump ?
Siphon is a gadget which moves mechanical energy to the liquid.
18. What is a turbine?
The turbine does the inverse.
19. What is the contrast between the turbine and the siphon?
It moves the stream energy of the liquid to mechanical energy.
20. What is the contrast among machine and motor?
Motor followers heat energy to Mechanical Energy in any case machine changes a wide scope of energy over to mechanical energy next to warm energy.
21. What is torque?
Torque is the force that causes rotation. It is a measure with how much force is acting on an object making it rotate.
22. Full form of CNC & VMC
CNC Computer Numerical Control.
VMC: Vertical Machining Centre,
23. What is the distinction among line and cylinder?
Line: Pipes are estimated and sold with Inner Diameter. Line are use to ship liquids like gase. Oil. water.v
Cylinder. Cylinders are assessed and sold with Outer Diameter.
24. strokes or 2 strokes?
Regarding force and force delivered 2 phase motors are more effective than 4 cycle motors. as it creates similar force as that by 4 phase motors (if their size are same) fifty-fifty a period.
25. What will happen if we use diesel in petrol engine?
If we put diesel in petrol engine, it will ignite negligibly, it will choke engines combustion chambers and leave smoky exhausts.
26 Surface plate is made of which metal?
Answer: - Cast Iron
27 What is Universal Bevel?
Answer: -Universal bevel is an indirect angle measurement or marking tool.
28 What type of instrument is a micrometer?
Answer: - Micro-measuring machine
29 How the tool performs cutting on the Shaper Machine!
Answer: - By Forward Stroke.
30 What type of tool is used on shaper machine?
Answer: - Single Point Cutting Tool
31 In which motion does the rocker arm of the shaper machine move?
Answer: - Oscillating Motion
32 What is the standard ratio of return stock from cutting in shaper machine?
Answer: - 3: 2
33 What is the use of a rotary table in a slotter?
Answer: - Rotary table helps in making circular contour surface.
34 When and who built the planning machine?
Answer: - Richard Roberts in 1817
35 When and who built the Slotting Machine?
Answer: In 1800, Brain Mark did it.
36 What is the trip dog in planer machine?
Answer: - Used to set the length of the stock of the table.
37 To whom is the size of the blender machine expressed?
Answer: - From the maximum length of the stroke.
38 What stroke does the tool cut in a planning machine?
Answer: In the return stroke (Backward Stroke)
39 What is a filler gauge?
Answer: - Filler gauge is used to check the difference between two matching parts.
40 What is the use of Ring Gauge?
Answer: - Ring gauge is used to check the external measurement of the job.
41 What is Snap Gauge?
Answer: - Snap gauge is used to check the length, width, thickness or diameter of a job.
42 By which are the parts produced in mass production measured?
Answer: - by gauge
43 What is meant by ferrous metal?
Answer: - The metal in which iron particles are found is called ferrous metal.
44 How many types of steel are there?
Answer: - Two types 1: - Plane Steel 2: - Alloy Steel
45 What is the melting property of a metal?
Answer: - Smelting
46 Which is the most rough iron?
Answer: - Ping Iron
47 Name the metal that conducts electricity and does not rust?
Answer: - Duralumin alloy.
48 What is the procedure for annealing method?
Answer: - In this method, the steel is heated to a temperature of more than 700 ° C for some time, it is cooled in a furnace or in a quenched or in sand or in the ashes of the dung. Which makes it soft.
49 What is normalizing method?
Answer: - In this method, the metal is heated to upper critical temperature and left to cool slowly in the stagnant air.
50 What does running fit mean?
Answer: - In this, the mail part is slightly smaller than the female part, due to which the mail part is fit by sliding in the female part.
51 What does driving fit mean?
Answer: - The mail part is somewhat larger or equal to the email part. The female part is fitted by rotating it.
52 What is the assembly of mating parts called?
Answer: - says fit
53 What type of lubricant is Greece?
Answer: - Semi-solid
54 What is Broaching?
Answer: - Branching is a mechanical process in which the external or internal surface can be cut into various shapes by a multi-toothed tool.
55 What is the sandwich jig used for?
Answer: - Sandwich jig is used for thin and soft jobs.
56 Grinding of holes is done by which wheel?
Answer: - Mounting Wheel
57 How many inches are there in a yard?
Answer: - 36 inches
58 How many types of methods of measurement are there?
Answer: - Three types 1 = Direct measurement 2 = Indirect measurement 3 = Comparative measurement
59 How many inches are there in a meter?
Answer: - 39.37 inches
60 One inch is equal to how many millimeters?
Answer: - equal to 25.4 millimeters
61 How many Thau are there in an inch?
Answer: - 1000 Thau
62 Which bangles are on the British Micrometre spindle?
Answer: - 40 Bangles per inch (40 Thread Per Inch)
63 MKS of measurement What does the M.K.S. system mean?
Answer: - M.K.S. Meaning of
M = meter (to measure length)
K = kilogram (for weighing)
S = seconds (for time)
64 How many colors are available in Carbide Tool?
Answer: - In three colors: - Red, Yellow, Blue.
65 What does tapping mean?
Answer: - The process of removing the thread inside a clue by tap is called taping.
66 What is the tool called round hole in any job?
Answer: - Drill
67 How many degrees is the point angle of a standard drill?
Answer: - 118 degrees
68 What does the pitch of a hacks blade mean?
Answer: The distance between one tooth to another is called bile.
69 Where is the size of the file?
Answer: - Point is taken from solder.
70 Who is called Bank / Vice (Vice)?
Answer: - The instrument used to hold any workpiece in the workshop is called the bank / vice.
71 Where is the size of the voice / bank taken?
Answer: - The size of any voice is taken by the length of its joe plate.
73 Which type of bangles are cut on the spindle of the bench vice.
Answer: - Square Threads
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