Interview Questions.

Question 1. What Are Different Methods Of Dimensioning?

Answer :

There are two techniques of dimensioning:

Unidirectional machine: All the dimensions are positioned in a single route most effective. These are commonly placed from left to proper whether written on a horizontal/vertical/inclined dimension.
Aligned machine: The dimensions are placed perpendicular to the size line. On a horizontal dimension, it's far horizontal whilst on a vertical measurement, it's miles in the vertical direction.
Aligned device of dimensioning is more not unusual.

Question 2. Name The Principal Planes Of Projection.

Answer :

The most important planes of projection are 3:

P.—Vertical plane for a front view
P.—Horizontal plane for the top view of the object.
P.—Profile aircraft for left or right facet view of an item.
NOTE: All those planes (HP, VP and PP) are at proper angles to each different.

Drawing and Painting Interview Questions
Question three. What Is A ? Why Are Sectional Views Used In Drawing?

Answer :

Sectional view: The object is cut by using a vertical plane to peer the internal invisible information inside the the front view.

The item is cut by means of a horizontal plane to see the inner invisible info inside the pinnacle view.

Sectional views are:

Front proper half of in segment
Total the front in section
Total pinnacle in section
All the sectional views are meant to look and understand the inner invisible information of the object. It will assist within the proper manufacturing in addition to in restore and servicing of the object.

Question 4. What Do You Understand By The V.T. And H.T. Of A Section Plane?

Answer :

V.T. Of a segment plane: It is a line inside the vertical plane where the slicing plane is meeting in addition to perpendicular to the vertical aircraft.

H.T. Of a phase plane: It is a line within the horizontal plane in which the cutting plane is assembly as well as perpendicular to the horizontal aircraft.

5. Give the realistic applications of intersection of surfaces or interpenetration of solids.

Practical programs of Intersection of surfaces: Manufacture of tables, chairs, set up of aircon ducts, in the creation of boilers, furnaces, chimneys.

Practical applications of interpenetration of solids: Connecting pipe to a cylinder, creating a tee joint in a pipe line, arm of someone going into the principle body.

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Question 5. What Is Difference Between A Plane And A Lamina?

Answer :

Plane is a two dimensional figure with confined/ limitless two dimensions.
Lamina is also a two dimensional parent with restricted two dimensions. For instance a sheet of paper is a lamina.
Machine layout Interview Questions
Question 6. What Is Meant By Conventions In Drawings?

Answer :

There are fashionable symbols as in keeping with countrywide or global codes. There are general symbols for forms of traces, styles of letters, kinds of substances, types of sections, sorts of joints utilized in enterprise as well as daily lifestyles. These conventions make the look at easy, easy and convenient.

Question 7. What Is The Principle Of Development Of Surfaces?

Answer :

The unfolding of an object on a flat surface is the principle of improvement. It is utilized in sheet metallic work for the manufacture of funnels, boilers, chimneys and fixtures of numerous types.

Machine studying Interview Questions
Question 8. Why The Drawing Is Called The Language Of Engineers?

Answer :

It is due to the fact drawing facilitates in conveying one’s thoughts in an easy, convenient and briskly manner. It additionally makes study easy because it makes use of worldwide standard conventions and symbols.

Question nine. What Is The Necessity Of Dimension A Drawing?

Answer :

It will give the general size as well as sizes exceptional parts of the item. The dimensioning is necessary for   the manufacture of the object within the enterprise.

Unigraphics NX Interview Questions
Question 10. What Is The Trace Of A Line?

Answer :

Trace of a line is the point where line meets the plane on extending the line.
If the road is willing to H.P., it'll have a H.T., (horizontal trace).
If the road is inclined to V.P., it'll have a V.T., (Vertical trace).
If the road lies in a horizontal aircraft, it's going to have a horizontal hint as a line itself.
If the road lies in a vertical aircraft, it's going to have a vertical hint as a line itself.
Question 11. Define Representative Fraction (r.F.)?

Answer :

It is a ratio of length taken on drawing sheet to the real length of the item.
R.F. < 1 for big objects like airplane, ship, tree, lathe etc.
R.F. = 1 for objects in common use. May be a book, shoe, pencil, pen, cell phone, remote etc.
R.F.>1 for small size gadgets like a wrist watch, pencil cell, thread needle, button etc.
Physical Design Engineer Interview Questions
Question 12. What Are A Single And A Double Stroke Letters?

Answer :

A letter written in a single stroke of the pencil is a unmarried stroke letter.
A letter written in  strokes of the pencil is a double stroke letter.
Drawing and Painting Interview Questions
Question 13. Why Are The Projections Of Objects Not Drawn In Second And Fourth Angle Of Projections?

Answer :

Front view and top view will overlap every other and hence there may be no clarity and it's going to all be only confusion.

Question 14. What Is A Plane?

Answer :

It is a  dimensional parent which has region most effective which include a triangle, square, trapezium, circle, (object of negligible thickness which include sheet of paper, thin plastic sheet).

Question 15. What Is Angle Of Inclination Of Section Lines?

Answer :

The angle is 450 to the reference line xy. All the segment lines are parallel and equidistant.

Sheet Metal Interview Questions
Question sixteen. Describe Free Hand Sketching.

Answer :

It is fast, smooth and handy approach of drawing an item.

Question 17. What Is Meant By Scale In Drawing?

Answer :

Depending on the size of the object, the size taken on drawing (sheet) may be equal or distinctive.
Size on drawing can be = or < or > the actual length.
If size on drawing = the real size, it's miles a FULL SCALE, represented as 1:1
If size on drawing < the actual size, it is a REDUCED SCALE, represented as 1:4
If size on drawing > the real length, it's far a ENLARGED SCALE, represented as 3:1
Piping Design Engineer Interview Questions
Question 18. What Are Applications Of Scales?

Answer :

Scales may be used for the subsequent purposes:

To draw an object on a complete, decreased and enlarged scale.
To degree distances.
To mark dimensions at the drawing.
Machine layout Interview Questions
Question 19. What Are Different Types Of Scales?

Answer :

Different sorts of scales are:

Plain scale: In which, you'll measure positive devices and its one 10th cost. For instance a scale in cm and mm is a plain scale, m and dm is another simple scale.

Diagonal scale: In which, one could degree positive units, its one tenth price in addition to its a centesimal fee. For instance a scale in m, dm and cm is a diagonal scale, dm, and cm and mm is any other diagonal scale.

Comparative or Corresponding scale: These are two special scales having equal R.F. However extraordinary devices. These may be placed facet through side or positioned over one and every other.

For instance: in miles and kilometres.

These scales may be simple scales or diagonal scales.

Vernier scales: It is a scale that's extraordinarily accurate for dimension. It makes use of a Vernier calliper. Vernier calliper is an instrument to degree a size very exactly. Normally its least matter is 1/a hundred of the dimensions unit. Say a scale is in cm, then a Vernier can degree very accurately up to one/a hundred of a cm i.E. 2.12 cm.

Question 20. What Are The Requirements For The Construction Of A Scale?

Answer :

(i) Maximum distance to be measured

(ii) R.F.( consultant fraction) of the size

Units of scale i.E. Mm, cm, m, km

Question 21. Write The Procedure For The Construction Of A Scale.?

Answer :

Note down the devices to be measured i.E. Km, m, cm——
Find the R.F. Of the dimensions.
Find the length, L, of the scale
 L= (R.F.) x actual distance to be measured

Draw a line and mark zero, 1, 2, three, 4—— at identical distances at the proper facet of 0.

Sub-divide 1 primary component into 10 parts on the left facet of 0.

Mention virtually the devices and sub gadgets underneath the size built.

 Example: Construct a scale having 2cm = 1 m to reveal m and dm and it should be lengthy sufficient to degree a distance of 10 m.

Units are m and dm.

F. = 2/one hundred=1/50

L = (1/50) x 10 x 100=20 cm

Draw a line of 20 cm duration. Divide it into 10 equal components to symbolize 1 m each.

Mark 0 after the first division and then wide variety it 1, 2, 3, ——as much as 9 on the right side of zero.

Divide the first element into ten identical divisions to represent 1 decimetre each.

Mark ten points on the left facet of zero.

Represent complete meters at the right facet and centimeters on the left facet of 0 to symbolize any required length say 5m 7 dm.

Question 22. Which Are The Types Of Projections Done In Engineering Drawing?

Answer :

Orthographic projections are finished on HP, VP and PP planes. Since projections are done on a aircraft, those projections are 2 dimensional.

Question 23. Discuss Some Key Features About The Projection Of Points?

Answer :

Distance of the front view is continually from the HP.
Distance of the pinnacle view is constantly from the VP.
If distance above HP, the front view is above xy and vice versa.

If distance is in the front of VP, pinnacle view is underneath xy and vice versa.

Question 24. How Are The Projections Of A Point Marked For Its Front View And Top View?

Answer :

Front view is marked by way of a small alphabet with a dash. The front view of point H might be h’.
Top view is marked with the aid of a small alphabet without a sprint. The front view of point H could be h.
Point as such is written by means of a capital alphabet.

Machine gaining knowledge of Interview Questions
Question 25. Define A Line In General. Also Define It From The Drawing Point Of View?

Answer :

A line is the shortest distance between two factors.
A line in drawing can be defined in a number of methods.
It is defined through the vicinity of its two ends with respect to the most important planes of projections and its real period.

Location of its  ends with respect to the principal planes and the gap between their projectors.

One cease is defined with admire to the main planes of projections and its inclination given with one of the essential plane at the side of proper length.

Question 26. Define The Trace Of A Line. What Are Various Types Of The Trace Of A Line?

Answer :

Trace of a line is a factor in which the road meets if produced the HP or VP.

Types of trace of a line:

Horizontal hint (H.T.) When the line while produced meets sooner or later to HP.
Vertical trace (V.T.) When the line whilst produced meets sooner or later to VP.
NOTE: When a line lies in a aircraft (HP or VP) its hint is a line and it's miles the road itself.

Question 27. What Are The Various Methods To Find The True Length And True Inclinations Of A Line When Its Projections Are Given?

Answer :

Various strategies to find the real period and dispositions are:

Rotation method
Trapezoidal approach
Auxiliary aircraft approach
Unigraphics NX Interview Questions
Question 28. What Are The Positions Of A Line With Respect To Hp And Vp?

Answer :

Line parallel to each HP and VP
 Line inclined to one aircraft and parallel to the opposite plane
Line willing to each HP and VP
Write a few critical observations regarding projections of a instantly line.

Projection on a aircraft will be the authentic duration to which plane line is parallel.
Projection on a plane to which it's miles willing can be less than the proper length. If the road is inclined to HP, its pinnacle view on HP can be shorter than the genuine length.
Projection could be a point at the aircraft to which line is perpendicular.
Question 29. What Is The Most Important Type Of Problems On The Projections Of A Straight Line?

Answer :

There are two fundamental sorts of troubles on the projections of a immediately line:

The projections of a line are given. Find the genuine length and its true dispositions with HP and VP.
The proper duration and its authentic tendencies with HP and VP are given. Draw its projections.
Question 30. Define Engineering Drawing. Why Drawing Is Called Universal Language Of Engineers?

Answer :

Engineering drawing is a graphical language of an engineer to convey one’s thoughts maximum efficaciously, effortlessly, comfortably and with high pace.
So Engineering drawing is a place to begin of all engineering branches which includes Mechanical, Production, Civil, Electrical, Electronics, Computer technology, Chemical etc. 
It is spoken, read, and written in its personal manner. Engineering drawing has its very own grammar in terms of projections, traditional representations, varieties of lines, abbreviations, symbols and numerous geometric buildings.
Question 31. Name Different Drawing Instruments.?

Answer :

Drawing board, drawing sheet, mini-drafter, scale, pencil and sand paper block, cello-tape, eraser and compass.

Question 32. What Are The Standard Sizes Of Drawing Sheets According To I.S.I. And Which Is Suitable For Drawing Work?

Answer :

The fashionable length of sheets according to I.S.I. Are:

A0 (1189 X 841),
A1 (841 X 594), 
A2 (594 X 420), 
A3 (420 X 297), 
A4 (297 X 210) and 
A5 (210 X 148).
Drawing sheet of size 594 X 420 i.E. A2 length is commonly used by engineering college students as it is very handy and easy for drawing work in class.

Question 33. What Are The Ways Of Sharpening A Pencil For Good And Accurate Work And Which Type Of Pencil Is More Suitable For Drawing Work?

Answer :

There are two approaches of polishing a pencil: 

A small piece of sand paper of 0 grade, pasted upon a piece of wooden. 
Sharpener.
Physical Design Engineer Interview Questions
Question 34. Why Cello-tape Is Used Instead Of Drawing Pins, Nowadays?

Answer :

Nowadays, cello tapes are used in location of drawing pins for its practical convenience because the drafter, may be moved effortlessly over the tape and the drafting board is spoiled with the aid of using drawing pins.

Question 35. What Is Layout Of Drawing Sheet?

Answer :

(i) Leave the following margins

1cm on top

1cm on bottom

1cm on proper 

3cm on left

(i) Make a name block(rectangle) of length sixty five mm high and 185 mm width on the right bottom aspect for name block, components list

Question 36. Why Is The Layout Of Sheet Is Necessary?

Answer :

Layout of the drawing at the drawing sheet is important in an effort to make its studying smooth and fast. The name blocks, parts list and so on will provide all the required records.

Sheet Metal Interview Questions
Question 37. List Out The Contents Of Title Block.

Answer :

The identify block must include the subsequent statistics:

Name of the group
Title of drawing
Name, Branch, segment and Roll no. Of the student
Type of scale used
Drawing number
Type of image for the technique of projection
Question 38. What Do You Mean By Convention/ Code?

Answer :

The illustration of any count number by means of a few fashionable signal or symbol on the drawing is called convention or code. The conventions make the drawing simple and easy to attract.

Question 39. What Do You Understand By Thickness Of Lines?

Answer :

There are three awesome thickness of lines used in engineering drawing. These lines are particular as thick, medium and skinny traces. The line particular as thick is normally 3 instances thicker and the road distinctive as medium is 2 times thicker than a skinny line.