In EDM, the cutting tool is actually:

a$.$ contacting the work

b$.$ an electrode

c$.$ non$-$consumable

d$.$ hardened to provide long tool life

The main disadvantage of wire EDM is:

a$.$ slower metal removal rates

b$.$ the wire electrode is consumable

c$.$ more operator intervention

d$.$ long setup times

In wire EDM, the wire to work distance is approximately:

a$.\mathrm{.}010$ of an inch

b$.005$ of an inch

c$.\mathrm{.}003$ of an inch

d$.\mathrm{.}001$ of an inch

Holemaking EDMs are able to drill holes with depth$-$to$-$diameter ratios of up to:

a$.10$ to $1$

b$.25$ to $1$

c$.50$ to $1$

d$.100$ to $1$

The loose$-$media abrasive process where parts are placed in a rotating chamber with the called:

a$.$ barrel finishing

b$.$ vibration finishing

c$.$ honing

d$.$ superfinishing

Electrical discharge machining processes can be used on:

a$.$ Any material that conducts electricity

b$.$ Only iron and steel $($ferrous$)$ materials

c$.$ Any material

d$.$ Metals and plastics, but not ceramics

What process is often used for cutting of punches and dies from hardened steel?

a$.$ Laser beam machining

b$.$ Wire EDM

c$.$ Vertical Milling

d$.$ Plasma arc cutting

Flame cutting works by:

a$.$ vaporizing the metal in the path of the flame

b$.$ causing metal to rapidly oxidize in the path of the flame

c$.$ causing metal to melt in the path of the flame

d$.$ wearing away the metal surface by gas abrasion