Question 1

B rotational axis is rotation about Axis.

Accepted Answer

A) X 
B) Y 
C) Z 
D) C 
A) X 
B) Y 
C) Z 
D) C A

Question 2

Feed is measured in units of

Accepted Answer

A) length/revolution 
B) degree/revolution 
C) length 
D) velocity 
A) length/revolution 
B) degree/revolution 
C) length 
D) velocity A

Question 3

In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed in m/min, V is

Accepted Answer

A) = ?DN/1000 
B) = ?D/1000 
C) = DN/1000 
D) =?DN/10 
A) = ?DN/1000 
B) = ?D/1000 
C) = DN/1000 
D) =?DN/10 A

Question 4

Which of the following code is used to return to a reference point?

Accepted Answer

A) G23 
B) G28 
C) G14 
D) G19 
A) G23 
B) G28 
C) G14 
D) G19

Question 5

For CNC machining skilled part programmers are needed.

Accepted Answer

A) True 
 B)False

Question 6

In the CNC machine which device used to hold the workpiece?

Accepted Answer

A) Automatic pallet changer 
B) Automatic work part positioner 
C) A & B both 
D) None of the above 
A) Automatic pallet changer 
B) Automatic work part positioner 
C) A & B both 
D) None of the above

Question 7

G00 Preparatory code is used for

Accepted Answer

A) Rapid Travel Execution 
B) Rapid Travel Positioning 
C) Rapid Travel sequencing 
D) Rapid clockwise interpolation 
A) Rapid Travel Execution 
B) Rapid Travel Positioning 
C) Rapid Travel sequencing 
D) Rapid clockwise interpolation

Question 8

The process of putting data into a storage location is called

Accepted Answer

A) reading 
B) writing 
C) controlling 
D) hand shaking 
A) reading 
B) writing 
C) controlling 
D) hand shaking

Question 9

Which two disciplines are tied by a common database?

Accepted Answer

A) documentation and geometric modeling 
B) CAD and CAM 
C) drafting and documentation 
D) none of the mentioned 
A) documentation and geometric modeling 
B) CAD and CAM 
C) drafting and documentation 
D) none of the mentioned

Question 10

In CNC systems multiple microprocessors and programmable logic controllers work

Accepted Answer

A) in parallel 
B) in series 
C) one after the other 
D) for 80% of the total machining time 
A) in parallel 
B) in series 
C) one after the other 
D) for 80% of the total machining time

Question 11

Which rule implement for axes Nomenclature?

Accepted Answer

A) Left-hand rule 
B) Right-Hand Rule 
C) Thumb Rule 
D) None of the above 
A) Left-hand rule 
B) Right-Hand Rule 
C) Thumb Rule 
D) None of the above

Question 12

In part programming, interpolation is used for obtaining trajectory.

Accepted Answer

A) helicoidal 
B) pentagonal 
C) triangular 
D) zig-zag 
A) helicoidal 
B) pentagonal 
C) triangular 
D) zig-zag

Question 13

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

Accepted Answer

A) (7.5, 5) 
B) (10, 5) 
C) (7.5, -5) 
D) (10, -5) 
A) (7.5, 5) 
B) (10, 5) 
C) (7.5, -5) 
D) (10, -5)

Question 14

To indicate the position of the workpiece ly & easily machine zero pint should be displaced to another point on the workpiece called…

Accepted Answer

A) Workpiece zero Point 
B) machine Zero Point 
C) Start Point 
D) Program Zero point 
A) Workpiece zero Point 
B) machine Zero Point 
C) Start Point 
D) Program Zero point

Question 15

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

Accepted Answer

A) (-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5) 
B) (0,-5), (55,-5), (55, 35), (-5, 35), (-5,-5) 
C) (5, 5), (5, 25), (45, 25), (45, 5), (5, 5) 
D) (5, 5), (45, 5), (45, 25), (5, 25), (5, 5) 
A) (-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5) 
B) (0,-5), (55,-5), (55, 35), (-5, 35), (-5,-5) 
C) (5, 5), (5, 25), (45, 25), (45, 5), (5, 5) 
D) (5, 5), (45, 5), (45, 25), (5, 25), (5, 5)

Question 16

With reference to NC machines, which of the following statements is wrong

Accepted Answer

A) Both closed-loop and open-loop control systems are used 
B) Paper tapes, floppy tapes and cassettes are used for data storage 
C) Digitizers may be used as interactive input devices 
D) Post processor is an item of hardware 
A) Both closed-loop and open-loop control systems are used 
B) Paper tapes, floppy tapes and cassettes are used for data storage 
C) Digitizers may be used as interactive input devices 
D) Post processor is an item of hardware

Question 17

A CNC Lathe is usually a machine tool with Z axes is…..

Accepted Answer

A) Line Joining origin and vertical movement 
B) Line perpendicular to Y axis 
C) Both A & B 
D) Line Joining Chuck centre & tail stock centre 
A) Line Joining origin and vertical movement 
B) Line perpendicular to Y axis 
C) Both A & B 
D) Line Joining Chuck centre & tail stock centre

Question 18

In how many ways CNC machine tool systems can be classified?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 19

Repetitive CNC machine operations conveniently performing and execute with one command instead of programming of series of individual move called …..

Accepted Answer

A) Common Cycle 
B) Incremental Programming 
C) Canned Cycle 
D) None of the above 
A) Common Cycle 
B) Incremental Programming 
C) Canned Cycle 
D) None of the above

Question 20

The lost motion in CNC machine tool is on account of

Accepted Answer

A) Backlash in gearing 
B) Wind-up of drive shafts 
C) Deflection of machine tool members 
D) All the above 
A) Backlash in gearing 
B) Wind-up of drive shafts 
C) Deflection of machine tool members 
D) All the above

B rotational axis is rotation about Axis.

Feed is measured in units of

In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed in m/min, V is

Which of the following code is used to return to a reference point?

For CNC machining skilled part programmers are needed.

In the CNC machine which device used to hold the workpiece?

G00 Preparatory code is used for

The process of putting data into a storage location is called

Which two disciplines are tied by a common database?

In CNC systems multiple microprocessors and programmable logic controllers work

Which rule implement for axes Nomenclature?

In part programming, interpolation is used for obtaining trajectory.

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

To indicate the position of the workpiece ly & easily machine zero pint should be displaced to another point on the workpiece called…

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

With reference to NC machines, which of the following statements is wrong

A CNC Lathe is usually a machine tool with Z axes is…..

In how many ways CNC machine tool systems can be classified?

Repetitive CNC machine operations conveniently performing and execute with one command instead of programming of series of individual move called …..

The lost motion in CNC machine tool is on account of

Computer Graphics

Geometric Modeling

Finite Element Analysis (FEA)

Advanced Manufacturing Method

Robotics and Automation

Filters

Exam 4: Computer-Aided Design (CAD)

B rotational axis is rotation about Axis.

Feed is measured in units of

In the lathe it is the peripheral speed of the work piece cutting speed of tool is expressed in m/min, V is

Which of the following code is used to return to a reference point?

For CNC machining skilled part programmers are needed.

In the CNC machine which device used to hold the workpiece?

G00 Preparatory code is used for

The process of putting data into a storage location is called

Which two disciplines are tied by a common database?

In CNC systems multiple microprocessors and programmable logic controllers work

Which rule implement for axes Nomenclature?

In part programming, interpolation is used for obtaining trajectory.

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

To indicate the position of the workpiece ly & easily machine zero pint should be displaced to another point on the workpiece called…

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

With reference to NC machines, which of the following statements is wrong

A CNC Lathe is usually a machine tool with Z axes is…..

In how many ways CNC machine tool systems can be classified?

Repetitive CNC machine operations conveniently performing and execute with one command instead of programming of series of individual move called …..

The lost motion in CNC machine tool is on account of

Computer Graphics

Geometric Modeling

Finite Element Analysis (FEA)

Advanced Manufacturing Method

Robotics and Automation

Filters