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EDF 2

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

DCEN stands for

a)

Direct Current Electric Negative

b)

Direct Current Electrode Native

c)

Direct Current Electrode Negative

d)

Direct Common Electrode Negative

2.

DCEP stands for

a)

Direct Current Electrode Plus

b)

Direct Current Electrode Positive

c)

Direct Common Electrode Positive

d)

Direct Current Electric Positive

3.

DCEP / DCEN is used in

a)

Arc welding

b)

Oxy-Acetylene Welding

c)

Plasma welding

d)

Gas welding

4.

Disadvantage of DCEP

a)

37 percent of heat is on the electrode

b)

Has good Electrode Life

c)

Used to weld thin cross sections

d)

Electrode life is short

5.

Advantage of DCEP

a)

Used to weld non metals

b)

Uses Alternating current

c)

Weld thin section

d)

Weld thick sections

6.

DCEN used in

a)

Welding thick sections

b)

Welding thin sections

c)

Welding Non metals

d)

Plasma welding

7.

A property of DCEP

a)

Low Deposition rate

b)

Better weld strength

c)

Weld non metals

d)

Better Arc cleaning

8.

66% heat is created at electrode in

a)

DCEP

b)

DCEN

c)

AC welding Unit

9.

34% heat is generated on base metal in

a)

DCEP

b)

DCEN

c)

AC Welding Unit

10.

34% heat is generated at electrode in

a)

DCEP

b)

DCEN

c)

AC welding Unit