Manufacturing Processes II Mock Test 8

10%

Question 1 of 10

1. Which of the following materials is not used for electrode wires?

Steel

Molybdenum

Brass

Graphite

Question 1 of 10

Question 2 of 10

2. Weld bead quality and the penetration are functions of _____

shroud gas velocity

material of the component

wavelength of the laser beam

power

Question 2 of 10

Question 3 of 10

3. Large scale wire cut EDM machines can handle workpieces weighing upto _____ pounds.

1000

600

10000

100

Question 3 of 10

Question 4 of 10

4. How many of the following process parameters can affect the welding process?
• Power pulses
• Wavelength
• Gap
• Joint geometries

Question 4 of 10

Question 5 of 10

5. The function of independent programming of the U & V axes in wire cut EDM machines is for _______

fullerene shaped workpieces

workpieces having a different shape on the top and bottom

workpieces having intricate shapes

hexagonal workpieces

Question 5 of 10

Question 6 of 10

6. Selection of the wire is based on how many factors?

Question 6 of 10

Question 7 of 10

7. The hot plasma vapour emerging from the keyhole may ionize _____

shielding gas

workpiece material

lasing material

shroud gas

Question 7 of 10

Question 8 of 10

8. In wire cut EDM, machine movement is accomplished with precision lead screws with recirculating ball bearings.

False

True

Question 8 of 10

Question 9 of 10

9. When it is not possible to have the flushing nozzles close to the top or bottom of the workpiece _____ machines may require constant adjustment of the top and bottom flush.

splash flush

stock flush

submerged type

rigid flush

Question 9 of 10

Question 10 of 10

10. Gas heating produced by gas lasers is controlled by _____

circulating the gas mixture

a blow of cool air

adjusting the wavelength of the laser

coolant

Question 10 of 10