Manufacturing Processes II Mock Test 7

10%

Question 1 of 10

1. Beam current is in the range of _____

200 μamp to 1 amp

100 μamp to 10 amp

185 μamp to 1.5 amp

50 μamp to 0.8 amp

Question 1 of 10

Question 2 of 10

2. Wire electric discharge (ED) machining is based on the same principle as that of _____

polar EDM

hydro-dynamic EDM

non-conventional EDM

die-sink EDM

Question 2 of 10

Question 3 of 10

3. Heating to a high temperature leads to thermo-ionic emission.

False

True

Question 3 of 10

Question 4 of 10

4. Electron beam machining process can machine holes of diameters in the range of _____

100 μm to 2 mm

2 mm to 5 mm

50 μm to 100 μm

10 μm to 80 μm

Question 4 of 10

Question 5 of 10

5. Sparking gap is the distance between _____

the workpiece and the electrode wire

the electrode wire and the di-electric fluid

the workpiece and the spark plug

the workpiece and the CNC table

Question 5 of 10

Question 6 of 10

6. Using lasers, large aspect ratio in drilling can be achieved.

False

True

Question 6 of 10

Question 7 of 10

7. WEDM process can be used for cutting hard extrusion dies.

False

True

Question 7 of 10

Question 8 of 10

8. In laser beam machining, electrons are excited by _____

flash torch

cathode ray tube

flash lamps

high temperature steam

Question 8 of 10

Question 9 of 10

9. Wire-cut EDM can cut plates of thickness upto _____

300mm

500mm

100mm

50mm

Question 9 of 10

Question 10 of 10

10. Which of the following materials is not machined by the EBM process?

Plastic

Wood

Titanium

Leather

Question 10 of 10