Question 1

The process of copying data from a memory location is called

Accepted Answer

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

Question 2

Which machine's spindle is used to horizontal work?

Accepted Answer

A) UMC 
B) VMC 
C) HMC 
D) DNC

Question 3

In 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

Accepted Answer

A) N010 GO3 X7.0 Y2.0 I5.0 J2.0 
B) N010 GO2 X7.0 Y2.0 I5.0 J2.0 
C) N010 GO1 X7.0 Y2.0 I5.0 J2.0 
D) N010 GOO X7.0 Y2.0 I5.0 J2.0

Question 4

Which of the following code will give point to point movement?

Accepted Answer

A) G00 
B) G01 
C) G56 
D) G94

Question 5

Secondary Linear Axes U,V & W are ……… to X,Y & Z-axis.

Accepted Answer

A) Perpendicular 
B) Parallel 
C) Rotational 
D) All of the above

Question 6

Automatic tool change in CNC Machine code

Accepted Answer

A) M05 
B) M06 
C) M07 
D) M09

Question 7

The distance of a given tool tip from the surface of workpiece is known as…..

Accepted Answer

A) Tool length 
B) Tool length offset H 
C) Cutter radius 
D) Compensation

Question 8

CAD/CAM is the relationship between

Accepted Answer

A) science and engineering 
B) manufacturing and marketing 
C) design and manufacturing 
D) design and marketing

Question 9

he linking of computer with a communication system is called………..

Accepted Answer

A) networking 
B) pairing 
C) interlocking 
D) assembling

Question 10

The term that is used for geometric modelling like solid modelling, wire frame modelling and drafting is known as

Accepted Answer

A) software package 
B) operating system 
C) application software 
D) none of the mentioned

Question 11

During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 the type of tool motion will be

Accepted Answer

A) circular Interpolation - clockwise 
B) circular Interpolation - counter clockwise 
C) linear Interpolation 
D) rapid feed

Question 12

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

Accepted Answer

A) Computer Numerical Control System 
B) Direct Numerical Control System 
C) Machining Center System 
D) Adaptive Control System

Question 13

In a CNC program block, N02 GO2 G91 X40 Z40……, GO2 and G91 refer to

Accepted Answer

A) circular interpolation in counter clockwise direction and incremental dimension 
B) circular interpolation in counter clockwise direction and absolute dimension 
C) circular interpolation in clockwise direction and incremental dimension 
D) circular interpolation in clockwise direction and absolute dimension

Question 14

...........is a group of words or coded instruction for the NC/CNC system to execute a particular movement.

Accepted Answer

A) Sequence 
B) Address 
C) Code 
D) Block

Question 15

In a CNC program block, N05 GO1 G91 G33 X20 Z-40……, G33 refer to

Accepted Answer

A) Peck Drilling 
B) Counter Boring 
C) Thread Cutting 
D) Grooving

Question 16

Rotation about Z-axis is called………….

Accepted Answer

A) a-axis 
B) b-axis 
C) c-axis 
D) none of the mentioned

Question 17

In a CNC program block, N05 GO1 G91 G33 X20 Z-40 K5……, K refer to

Accepted Answer

A) Depth of cut 
B) Pitch 
C) Multiple Threading Cycle 
D) Feed

Question 18

In CNC programming …….. is commonly used canned cycle for Stock removal cycle

Accepted Answer

A) G71 
B) G72 
C) G73 
D) G74

Question 19

In CNC Program M03 is refer to……

Accepted Answer

A) Spindle ON in Clockwise rotation 
B) Spindle ON in Counter Clockwise rotation 
C) Spindle OFF in Clockwise rotation 
D) Spindle OFF in Counter Clockwise rotation

Question 20

Incremental dimension in circular interpolation in X-axis is denoted by

Accepted Answer

A) J 
B) I 
C) K 
D) None of the above

Exam 4: Computer-Aided Design (CAD)