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Soalan Objektif EDM

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.

What type of axis is used in EDM die sinker?

a)

X, Y, Z

b)

A, B, C

c)

X, Y, Z, W

d)

All of the above

2.

The main axis in EDM wire cut for wire movement is:

a)

X only

b)

Z only

c)

X and Y

d)

X, Y, and Z

3.

Movement on the Z axis is usually used for:

a)

Controlling electrode movement

b)

Controlling wire tension

c)

Shaping the work profile

d)

Cooling the material

4.

What is the use of U and V axes in EDM wire cut?

a)

Forming concave surfaces

b)

Controlling cutting angles

c)

Holding the workpiece

d)

Reducing electrical energy

5.

In EDM die sinker, the movement of the electrode is controlled by:

a)

X axis only

b)

Z axis only

c)

X, Y, and Z axes

d)

A and B axes

6.

The W axis in EDM wire cut is usually used for:

a)

Additional precision for wire

b)

Aligning the electrical system

c)

Balancing the electrode work

d)

Ensuring the workpiece does not move

7.

What is the main feature of EDM wire cut compared to EDM die sinker in terms of axes?

a)

EDM wire cut does not require additional axes

b)

EDM wire cut has U and V axes

c)

EDM die sinker is more precise on the Y axis

d)

EDM wire cut uses only X and Z axes

8.

The X and Y axes in EDM wire cut are used for:

a)

Linear movement of the workpiece

b)

Cutting complex profiles

c)

Manually moving the electrode

d)

Controlling electrical power

9.

In EDM wire cut, which axis ensures precise angle cutting?

a)

X and Y

b)

U and V

c)

Z and W

d)

X only

10.

Additional axis systems like U and V are used in EDM wire cut to:

a)

Form flat surfaces

b)

Control complex geometries

c)

Increase electrical current

d)

Heat the workpiece

11.

What is the common electrode material used in EDM die sinker?

a)

Graphite

b)

Copper

c)

Tungsten

d)

All of the above

12.

Tooling for EDM die sinker is designed based on:

a)

Workpiece requirements

b)

Machine capacity

c)

Desired precision

d)

All of the above

13.

What is the main function of a jig in EDM wire cut?

a)

Controlling electrical current

b)

Holding the workpiece steadily

c)

Automatically moving the wire

d)

Protecting the workpiece from sparks

14.

What is the main advantage of using graphite electrodes in EDM die sinker?

a)

Low cost

b)

High heat resistance

c)

Easy machining

d)

All of the above

15.

What is an important feature of wire in EDM wire cut?

a)

Heat resistance

b)

High electrical conductivity

c)

Uniform diameter

d)

All of the above

16.

What is the name of the component that ensures the EDM wire is always taut?

a)

Wire holder

b)

Wire winder

c)

Wire tensioner

d)
17.

What is the name of the component that ensures the EDM wire is always taut?

a)

Wire holder

b)

Wire winder

c)

Wire tensioner

d)

Wire connector

18.

Tooling in EDM wire cut is designed to:

a)

Withstand high pressure

b)

Stabilize wire cutting

c)

Prevent workpiece vibration

d)

All of the above

19.

EDM die sinker electrodes are typically used for:

a)

Forming deep profiles

b)

Cutting workpieces

c)

Holding workpieces

d)

Conducting electric energy

20.

EDM wire is usually made from:

a)

Aluminum

b)

Copper

c)

Nickel

d)

Carbon

21.

What is the purpose of dielectric fluid in EDM?

a)

Cooling the workpiece

b)

Conducting electricity uniformly

c)

Removing workpiece debris

d)

All of the above

22.

In EDM die sinker, how is the electrode aligned with the axis?

a)

Using a manual system

b)

Using an automatic system

c)

Depending on the type of tooling

d)

All of the above

23.

What distinguishes EDM wire cut tooling from EDM die sinker?

a)

EDM wire cut uses wire as an electrode

b)

EDM die sinker requires complex jigs

c)

EDM wire cut is faster than EDM die sinker

d)

All of the above

24.

The accuracy of the axis in EDM wire cut is influenced by:

a)

Wire size

b)

Wire tension

c)

Movement of U and V axes

d)

All of the above

25.

In EDM die sinker, good tooling will:

a)

Produce a smooth surface

b)

Reduce electrode wear

c)

Increase cutting efficiency

d)

All of the above

26.

The combination of X, Y, Z axes in EDM die sinker is used for:

a)

Forming 3D profiles

b)

Stabilizing the workpiece

c)

Reducing heat effects

d)

Extending tooling life

27.

In EDM wire cut, which tool maintains the position of the wire?

a)

Guide roller

b)

Tool holder

c)

Wire feeder

d)

Clamping jig

28.

The additional U and V axes in EDM wire cut require:

a)

Precision in tooling

b)

Special wire

c)

Computer system support

d)

All of the above

29.

Inaccurate tooling in EDM wire cut can cause:

a)

Uneven cutting

b)

Loss of workpiece

c)

Wire damage

d)

All of the above

30.

What is the suitable workpiece material for EDM wire cut?

a)

Conductive materials only

b)

Non-conductive materials

c)

All types of metals

d)

Only soft metals

31.

The axis system in EDM die sinker is designed to:

a)

Adjust the movement of the electrode

b)

Hold the workpiece accurately

c)

Ensure the electrode moves parallel

d)

All of the above