1. In FEA of a fluid mechanics problem, we need to find .
Correct : C. pressure distribution
2. Crack propagation problems come under category.
Correct : C. transient problems
3. In penalty approach, rigid support is considered as a spring having stiffness.
Correct : D. infinite
4. How many nodes are there in a tetrahedron element?
Correct : B. 4
5. How many nodes are there in a hexahedron element?
Correct : C. 8
6. How many nodes are there in a tetrahedron with curved sides element?
Correct : C. 10
7. If the size of the elements is small, the final solution is expected to be accurate.
Correct : A. more
8. In truss analysis, the reactions can be found by using the equation .
Correct : B. R=KQ-F
9. CAD/CAM is the relationship between
Correct : C. design and manufacturing
10. Which two disciplines are tied by a common database?
Correct : B. CAD and CAM
11. The term that is used for geometric modelling like solid modelling, wire frame modelling
and drafting is known as
Correct : A. software package
12. The software that is used to control the computer’s work flow, organize its data and
perform housekeeping functions is known as
Correct : A. operating software
13. During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0
the type of tool motion will be
Correct : A. circular Interpolation – clockwise
14. n an NC machining operation, the tool has to be moved from point (5, 4) to point (7, 2) along
a circular path with centre at (5, 2). Before starting the operation, the tool is at (5, 4). The G and N codes for this motion are
Correct : B. N010 GO2 X7.0 Y2.0 I5.0 J2.0
15. The tool of an NC machine has to move along a circular arc from (5, 5) to (10, 10) while performing an operation. The centre of the arc is at (10, 5). Which one of the following NC tool path command performs the above mentioned operation?
Correct : A. N010 GO2 X10 Y10 X5 Y5 R5
16. Match the following: NC code Definition
P. M05 1. Absolute coordinate system Q. G01 2. Dwell R. G04 3. Spindle stop S. G09 4. Linear interpolation
Correct : C. P-3, Q-4, R-2, S-1
17. In a CNC program block, N02 GO2 G91 X40 Z40……, GO2 and G91 refer to
Correct : C. circular interpolation in clockwise direction and incremental dimension
18. Numerical control
Correct : C. is a method for controlling by means of set of instructions
19. Computer will perform the data processing functions in
Correct : B. CNC
20. Control loop unit of M.C.U is always
Correct : A. a hardware unit
21. The repeatability of NC machine depends on
Correct : B. mechanical errors
22. Rotation about Z-axis is called………….
Correct : C. c-axis
23. Rotation of spindle is designated by one of the following axis:
Correct : D. none of the mentioned
24. he linking of computer with a communication system is called………..
Correct : A. networking
25. The process of putting data into a storage location is called
Correct : B. writing
26. The process of copying data from a memory location is called
Correct : A. reading
27. CNC machining centres do not include operations like
Correct : C. welding
28. Feed is measured in units of
Correct : A. length/revolution
29. he depth that the tool is plunged into the surface is called as
Correct : B. depth of cut
30. In CNC systems multiple microprocessors and programmable logic controllers work
Correct : A. in parallel
31. Which of the following is not the advantage of CNC machines?
Correct : D. Improved strength of the components
32. In how many ways CNC machine tool systems can be classified?
Correct : B. 3
33. Point-to-point systems are used for
Correct : A. reaming
34. In part programming, interpolation is used for obtaining trajectory.
Correct : A. helicoidal
35. For CNC machining skilled part programmers are needed.
Correct : A. True
36. An absolute NC system is one in which all position coordinates are referred to one fixed
origin called the zero point.
Correct : A. True
37. In , the coordinates are mentioned in the program with respect to one
reference point
Correct : B. Absolute System
38. ……… is a group of words or coded instruction for the NC/CNC system to execute a
particular movement.
Correct : D. Block
39. Each coded instruction in a set of instructions is called as……
Correct : A. Words
40. In , the coordinates are mentioned in the program with respect to one
Previous point.
Correct : A. Incremental System
41. G00 Preparatory code is used for
Correct : B. Rapid Travel Positioning
42. In a CNC program block, N05 GO1 G91 G33 X20 Z-40……, G33 refer to
Correct : C. Thread Cutting
43. In CNC Program M03 is refer to……
Correct : A. Spindle ON in Clockwise rotation
44. In CNC Program M98 is refer to……
Correct : B. Call Sub-Program
45. In a CNC program block, N05 GO1 G91 G33 X20 Z-40 K5……, K refer to
Correct : B. Pitch
46. A CNC Lathe is usually a machine tool with Z axes is…..
Correct : D. Line Joining Chuck centre & tail stock centre
47. B rotational axis is rotation about Axis.
Correct : A. X
48. Secondary Linear Axes U,V & W are ……… to X,Y & Z-axis.
Correct : B. Parallel
49. ……… are also called as parametric subroutines
Correct : B. Macro
50. In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed in
m/min, V is
Correct : A. = 𝜋𝐷𝑁/1000
51. Incremental dimension in circular interpolation in X-axis is denoted by
Correct : B. I
52. Repetitive CNC machine operations conveniently performing and execute with one
command instead of programming of series of individual move called …..
Correct : C. Canned Cycle
53. In CNC programming …….. is commonly used canned cycle for Stock removal cycle
Correct : D. G74
54. ……… is the origin of the coordinate system which is defined by manufacturer they cannot
be changed
Correct : B. machine Zero Point
55. To indicate the position of the workpiece ly & easily machine zero pint should be displaced
to another point on the workpiece called…
Correct : A. Workpiece zero Point
56. XY Plane Selection in CNC machining is done by…..
Correct : B. G17
57. The distance of a given tool tip from the surface of workpiece is known as…..
Correct : B. Tool length offset H
58. In CNC machining tool radius compensation turning the left mode ON programming contour
done by
Correct : B. G41
59. Maximum spindle speed limitation code in CNC Machine
Correct : C. G92
60. Which of the following code is used to return to a reference point?
Correct : B. G28
61. The following code will produce dwell for a specified time…
Correct : D. G04
62. Which of the following code will give point to point movement?
Correct : A. G00
63. Which rule implement for axes Nomenclature?
Correct : B. Right-Hand Rule
64. Automatic tool change in CNC Machine code
Correct : B. M06
65. Full form of MCU is…………
Correct : C. Machine control unit
66. The machine tool, in which calculation and setting of the operating conditions like depth of
cut, feed, speed are done during the machining by the control system itself, is called
Correct : D. Adaptive Control System
67. In which machine we get feedback?
Correct : C. CNC machine
68. Which machine's spindle is used to horizontal work?
Correct : C. HMC
69. What is the full form of ATC?
Correct : A. Automatic tool changer
70. In which system we get feedback?
Correct : C. Closed-loop system
71. How many maximum tools can ATC hold?
Correct : B. 80
72. In the CNC machine which device used to hold the workpiece?
Correct : C. A & B both
73. In a CAD package, mirror image of a 2D point P (5, 10) is to be obtained about a line which
passes through the origin and makes an angle of 45° counterclockwise with the X-axis. The coordinates of the transformed point will be
Correct : B. (10, 5)
74. NC contouring is an example of
Correct : A. Continuous path positioning
75. With reference to NC machines, which of the following statements is wrong
Correct : C. Digitizers may be used as interactive input devices
76. In finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right compensation, the trajectory of the cutter will be
77. The lost motion in CNC machine tool is on account of
Correct : A. Backlash in gearing
78. From following, the alternative name for RP is ________
Correct : D. All of the above
79. Input of RP data is ______
Correct : C. CAD data
80. In the ___________ process, one starts with a single block of solid material larger than the final
size of the desired object and material is removed until the desired shape is reached.
Correct : A. Subtractive process
81. __________ is one where mechanical forces or restricting forms are applied on a material so as
to form it into the desired shape
Correct : C. Formative process
82. Which of the following is not subtractive process?
Correct : B. Stereo-lithography
83. Which of the following process is not formative process?
Correct : C. Selective Laser Sintering
84. Choose the correct sequence to generate prototype
Correct : A. 3D CAD data - CAD solid model - STL file - RP prototype
85. Which of the following can not be the input of CAD solid model?
Correct : C. Tooling
86. Full form of STL is _____
Correct : C. Stereo-lithography
87. For rapid prototyping 3D CAD model should be converted into______file
Correct : C. STL
88. Process of converting STL file model in to layers is called________in RP
Correct : B. slicing
89. Support structures are required for ______
Correct : C. overhanging portions
90. The STL files translate the part geometry from a CAD system to________
Correct : C. RP machine
91. Slicing a part is easier in ______
Correct : B. STL method
92. STL file converts curved surfaces into_______
Correct : A. Polygons
93. Which of the following is not Liquid-based RP system?
Correct : B. Laminated Object Manufacturing (LOM)
94. Full form of FDM is_______
Correct : C. Fused Deposition Modelling
95. Full form of MJM is______
Correct : B. Multi Jet Modelling
96. Which of the following is not Solid-based RP system?
Correct : C. Electron Beam Melting (EBM)
97. Laminated Object Manufacturing (LOM) is developed by_______
Correct : D. Cubic Technologies
98. Which of the following is not Powder-Based RP system?
Correct : B. Solid Object Ultraviolet-Laser Printer (SOUP)
99. Which of the following RP system is not developed by 3D systems?
Correct : C. Paper Lamination Technology (PLT)
100. Which of the following is used as base material in Stereolithography (SLA) process?