Manual Part programming Third Year Mechanical Engineering
Q. 1
Plane stress is example of 2-D element
True✅
False
Q.2
The bulk of program is reduced using G-codes for repeated commands and are called as ______________
answer choices
Modal cycles
Preparatory cycles
Variable cycles
Canned cycles✅
Q.3
The miscellaneous function words consist of ___________ digits.
A)1-D, 2-E, 3-B, 4-C, 5-A,
B)1-D, 2-E, 3-B, 4-C, 5-A
C)1-E, 2-D, 3-B, 4-C, 5-A
answer choices
One
Two✅
Three
Four
Q.4
Miscellaneous command for coolant off in CNC is
answer choices
M 09✅
M 10
M 11
M 08
Q.5
The preparatory code for “Cancellation of cutter offset compensation” is
answer choices
G 40✅
G 41
G 42
None of these
Q.6
In CNC programming statement about absolute programming is declared by
answer choices
G 90✅
G 91
G 92
G 96
Q.7
G91 preparatory code is used for
answer choices
Absolute presetting
Absolute programming
Incremental programming✅
Metric unit setting
Q.8
NC machines used for drilling, boring, reaming, tapping is
answer choices
Contouring type
Straight cut
Point-to-point✅
None of the above
Q.9
G03 code in part programming is used for
answer choices
Linear movement
Rapid movement
Interpolation clockwise
Interpolation anticlockwise✅
Q.10
In the Word Address Format (WAF) for part programming, letter F used as
answer choices
Preparatory function
Miscellaneous function
Feed Rate✅
Tool change
Q.10
M98 code is used in part programming
answer choices
Spindle off
Coolant off
Call Subprogram✅
End of program
Q.11
Listing of relative cutter and work piece positions in manual part programming
answer choices
Manuscript
Programming✅
Automation
None
Q.12
Miscellaneous command for coolant on in CNC is
answer choices
M09
M10
M11
M08✅
Q.13
APT stands for
answer choices
Automatically programmed tool✅
Auto power tool
Automaticaly punched tape
All
Q.14
G71 preparatory code is used for
answer choices
Absolute presetting
Absolute coordinate setting
Metric unit setting
None of these
Q.15
Common language developed for computer assisted part programming is
answer choices
WAF✅
MDI
APT
All of above
Q16
Milling operation is an example
answer choices
Contouring NC✅
Point to point NC
straight cut
All of above
Q17 In turning operation Z-axis refers to
answer choices
Spindle axis✅
Depth of cut
Plane designation
None of these
Q18 The preparatory code for plane change in CNC is
G 71
G 70
G 17✅
None of these
Q.19 Miscellaneous command program stop in CNC is
M09
M10
M11
M00✅
Tooling for CNC Machine...
Q. 1
The equipment used to determine the tool offset is called as_______
Tool holder
Tool magazine
Tool presetter✅
Chuck
Q. 2
In CNC machine tools, the change of tools between tool magazine and spindle is accomplished by
Robot
AGV
ATC✅
Conveyor
Q. 3
In case of complex jobs on machining centres, the machine utilization is prominently improved by using _____________
Multiple Pallets✅
ATC
Tool Magazine
AGV
Q. 4
Multiple pallets are used in CNC machine tools, basically for ____________
Increasing the cost of machine
Ease of handling the job
Increasing machine utilization✅
All of these
Q. 5
The part of CNC machine tool where multiple tools are stored is called as
Tool magazine✅
Spindle
Tool store
Tool-room
Q. 6
The equipment used for the measurement of tool-offsets is called as
Vernier
Micrometer
CMM
Tool presetter✅
Q. 7
Tool and fixture design is a task under
CAD
CAM✅
CAE
None of these
Q. 8
Which type of tool magazines are generally used to handle around 200 tools
in CNC machines
Drum type
Chain type✅
Turret type
Both a) and b)
Q. 9
The Tool is held in the CNC milling machine in
Adapter✅
Modular
Pallets
Magazines
Q. 10
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
Computer Numerical Control System
Direct Numerical Control System
Machining Centre System
Adaptive Control System✅
Q. 11
Which machine tool reduces the number of set-ups in machining operation, time spent in setting machine tools and transportation between sections of machines?
Computer Numerical Control machine toolDirect Numerical Control machine tool
Adaptive Control Systems
Machining centre✅Q. 12
Tool holders are used for clamping/ hold tool purpose
True✅
False
Q. 13
Tool Holders have following properties
variety of operations
get high accuracy
Flexibility
All✅
Q. 14
Adaptor which is allow to join or allow function together for non fitting comoponents
True✅
False
Q. 15
In tool magazine we can not store the tools
Tru
false✅
Q. 16
Drum type tool magazine store lot of tools
True
False✅
Q. 17 Chain type tool magazine is used when variety of tools are required
True✅
False
Q. 18 For tool turret need not required tool change arm
True✅
False
CNC DNC Technology MCQ
Q.1
In CNC machine tools _____________ is used.
answer choices
Lead screw
Recirculating ball screw✅
Rack and pinion
None of the these
Q. 2
In NC/ CNC systems, lead time is ______________
answer choices
increased considerabl
reduced considerably✅
not affected at all
increased/decreased dependingupon the product
Q. 3
In CNC systems, Non-Value-adding time is ______________
answer choices
Reduced considerably✅
Increased considerably
Not affected at all
Depends totally on operator
Q. 4
FANUC is the name of
answer choices
CNC tool
CNC controller✅
CNC job holding device
None of these
Q. 5
The predefined sequence of movement of machine parts in CNC, stored in MCU is called as
answer choices
Machine cycles
Operation cycles
Canned cycles✅
None of these
Q. 6
The system that uses a single high capacity computer to control a number of CNC machines is called as
answer choices
CNC
NC
DNC✅
SNC
Q. 7
In CNC programming, the codes for angular dimensions around x,y,z axes are
answer choices
U,V,W✅
I,J,K
L,M,N
A,B,C
Q. 8
The rotary motion axes, in CNC, around x,y,z are indicated by ____________
answer choices
U,V,W✅
I,J,K
L,M,
A,B,C
Q. 9
According to ISO machine tool axes definition for CNC lathe machine ‘+Z’ axis is defined when tool goes away from the work piece.
answer choices
True✅
False
Q. 10
In CNC system computer must have......
answer choices
storage of data
data processing
both✅
none of these
Q. 11
CNC Controllers is a brain of CNC system...
answer choices
True✅
False
Q. 12
Which is not the type of CNC controllers
answer choices
hybrid CNC controller
straight CNC controller
oblique CNC controller✅
Q. 13
Training in the use of CNC’s is available through the use of 'virtual software’.
answer choices
True✅
false
Q. 14
which one is not a Components of DNC....
answer choices
central computer
Bulk memory
telecommunication lines
CAPP✅
Q. 15
what are the types of DNC..........
answer choices
Behind the tape reader system
DNC with special MCU
both✅
none of these
Q. 16
what is the main objective of Adaptive control system
answer choices
to reduce process machining time✅
to increase lead time
to increase WIP
to reduce CAPP
Fundamentals of NC System MCQ
Q. 1
A Comparator is required in
answer choices
open loop system✅
closed loop system
Both
None of these
Q.2
The device used in NC machine tools to read a program on punched tape is called as
answer choices
Program scanner
Program reader
Punched tape reader✅
None of these
Q. 3
In case of closed loop control system ___________ is used.
answer choices
DC Servo motors✅
Stepper motors
Hydraulic actuator
None of these
Q. 4
DC Servo motors are used as drive motors in
answer choices
Open loop control
Close loop control✅
Both
None of the above
Q. 5
A convex drilling machine is
answer choices
Point to point NC
Straight cut NC
Contour cut NC✅
All
Q. 6
In NC systems, developments, MIT stands for
answer choices
Michigan Institute of Technology
Massachusetts Institute of Technology✅
Morocco Institute of Technology
Manipal Institute of Technology
Q. 7
In NC machine tool, the motions and machine operations are controlled by
answer choices
Number characters
Alpha-numeric characters✅
Alphabets only
None of these
Q. 8
AGV is highly recommended for use in
answer choices
FMS✅
Jobbing industry
SSI
Service industry
Q.9
More job variety can be well accommodated in case of
answer choices
Rigid automation
Flexible automation✅
Continuous flow process
None of these
Q. 10
The device used to read a program in NC systems is called as____________
answer choices
Scanner
Flexowriter
Punched tape reader✅
Collator
Q. 11
A flexible manufacturing system may contain __________
answer choices
Automated m/c tool
Automated material handling system
Computer interface
All of these✅
Q.12
The device used in NC machine tools to read a program on punched tape is called as____________
answer choices
program scanner
Program reader
Punched tape reader✅
None of these
Q. 13
Mechanical Engineering CAD/CAM/CAE Subject All Chapter MCQ
The width of tape used to punch NC-program is _______________
answer choices
1 cm
2 cm
1 inch✅
2 inch
Q. 14
A flexible manufacturing system may have __________
answer choices
AGV
AS/RS
Conveyors
All of these✅
Q. 15
NC system means Numerical control system
answer choices
True✅
false
Q. 16
CNC machine is not part of NC machine
answer choices
True
False✅
Q. 17
when was developed first FMS in England
answer choices
1960✅
1975
1965
1980
Q. 18
who was inventor of NC?
answer choices
John Person✅
Mark belly
Both
None of these
Q. 19
Elements of NC system.............
answer choices
Programs
MCU
processing Equipments
All✅
Q. 20
DPU and CLU are components of MCU
answer choices
Yes✅
No
Q. 21
From closed loop system we can achieve high accuracy
answer choices
True✅
False
Q. 22
For open loop system lower torque motor is used
answer choices
True✅
false
Q. 23
NC structure should be..........
answer choices
Rigid
Tackle to large force
Tackle to thermal effect
All✅
Q. 24
In Stepper drive system, feedback and positioning system are present
answer choices
Yes
No✅
Q. 25
Which one is not a step in NC system
answer choices
Tape verification
Process Planning
Programming
Customer feedback✅
Q. 26
FMS is also called as "System 24"
answer choices
True✅
False
Q. 27
which type of FMS is specially known for making large mix product
Random FMS✅
Dedicated FMS
both
none
Q. 28
which one is controlled component in FMS
processing station
control hardware✅
material handling system
storage system
Q. 29
By using FMS system we can increase the productivity and quality of product
True✅
false
Q. 30
Sheet metal fabrication is one of the best application of FMS
Yes✅
No
Automation In Mechanical Engineering Subject MCQ
Q. 1
Which of the following statements is true in case of flexible automation?
answer choices
It reduces lead time in design
It uses ordinary GPMs
It reduces lead time in mfg. and offers inclusion of variety of products✅
All of these
Q. 2
A flexible manufacturing system may contain __________
answer choices
Automated m/c tool
Automated material handling system
Computer interface
All of these✅
Q. 3
In group technology, on part family is on collection of parts based on _______
Shape
Size
Similar processing steps
Any of these✅
Q. 4
CAPP involves use of computer in _________
answer choices
Planning the processes✅
Determine cutting conditions
Setting time standards
All of these
Q. 5
CIM comprise of------
answer choices
Only CAM
CAD and CAM
CAD/CAM and other business functions✅
CAD, CAM and CAE
Q. 6
More job variety can be well accommodated in case of
answer choices
Rigid automation
Flexible automation✅
Continuous flow process
None of these
Q.7
CIM necessitates ________________
answer choices
Unique Architecture for all mfg. firms
Unique Architecture for all mfg. and service industries
Preferably customized architecture for diff. mfg. setups✅
None of these
Q.8
‘Retrieval type’ and ‘generative type’ are the types of
answer choices
CAPP✅
GT
FMS
CNC programming
Q. 9
Which of the following is the rapid prototyping method ?
answer choices
Stereo lithography
Selective Laser Sintering
Fused Deposition Modeling
All of these✅
Q. 10
Flexible Manufacturing System (FMS) represents
answer choices
Group of part family
Arrangement of all automatic machines
Conventional machining
None of these✅
Q. 11
Purchasing of raw material, Tools, Jix and fixture will be done in ___________activity.
answer choices
CAD
MRP✅
CAE
None of these
Q. 12
Which of the following is a parts classification and codification system in group technology?
answer choices
CODE
MICLASS
OPITZ✅
All of these
Q. 13
ROBOT is example of
answer choices
Programmable automation✅
Flexible automation
Fixed automation
All above
Finite Element Method MCQ
Q. 1
Post processing consist of,
answer choices
Building geometry
check the results✅
define material properties
assign boundary conditions
Q. 2
If the accuracy of the mesh is improved using a
higher order polynomial then it is called,
answer choices
h refinement
P refinement✅
hp refinement
r refinement
Q.3
The term finite
element was introduced by,
answer choices
Hrenikoff
Courant
Clough✅
Zienkiwicz
Q. 4
If mesh density increases,
answer choices
Accuracy of results increases✅
Accuracy of results decreases
Accuracy remains usual
All of the above
Q. 5
The element equations cannot be solved without,
answer choices
Boundary conditions✅
Linear static conditions
Post processing conditions
None
Q. 6
Discretization can
be done using software mostly in industry,
answer choices
Hypermesh✅
Autocad
Fluent
Catia
Q. 7
Term AE/L represents
answer choices
Stress
Strain
stiffness✅
Stiffness matrix
Q.8
Stress analysis of
spur gear can be conveniently done using software,
answer choices
Ansys✅
Pro-E
AutoCad
Catia
Q. 9
If the no. of nodes
increases,
answer choices
Accuracy✅
decreases
Accuracy increases
Accuracy remains
same
None
Q. 10
The process of
building the structure matrix [K] from the element stiffness matrices
[K]e is called,
answer choices
assembly✅
decomposition
interpolation
extrapolation
Q. 11
In Simple elements
nodes are ,
answer choices
located at the comers of elements✅
located at
middle of elements
located at internal
none of above
Q. 12
In thermal analysis
problems the primary field variable is,
answer choices
temperature✅
heat flux
displacement
none
Q. 13
Solution phase
consist of,
answer choices
Building
geometry
check the
results
solver✅
displacing results automatically
Q. 14
what is FEM ?
answer choices
Finite Element Method✅
Free Element Mode
Final Element Method
Focused Element Mode
Q. 15
It is not the term of FEM
answer choices
domain
node
Element
Ansys✅
Q. 16
FEM is used for Discretization
answer choices
True✅
False
Q. 17
How many general steps in FEM?
answer choices
1
2
3✅
5
Ye bhi padhe :- Mechanical Engineering CAD/CAM/CAE Subject All Chapter MCQ 2