welding test 3

1.

1 point

In submerged arc welding the flux is applied

as a gas

in a granular form

as a paste

as a liquid

2.

1 point

cast iron is generally repaired by

submerged arc welding

shield arc welding

brazing

TIG welding

3.

1 point

Oxygen is stored in the cylinders at a pressure of

15400 kpa

12000 kpa

22500 kpa

2000 kpa

4.

1 point

Electric welding requiers

1. high voltage
2. low voltage
3. high current
4. low current

1 and 4 are correct

2 and 3 are correct

2 and 4 are correct

1 and 3 are correct

5.

1 point

procedure qualifications are

Steps taken by the welder with regard to joint preparations

Methods of non destructive testing

Approval of a welding procedure by the authority for a specific application

Tests to determine the welder's ability

6.

1 point

With straight polarity, DC welding, the negative lead is connected to the

electrode holder

metal bench

ground

work piece

7.

1 point

The type of non-destructive test that uses three types of non corrosive liquids is the:

Fluorescent penetrant test

Radiographic test

Dye penetrant test

Magnetic tets

8.

1 point

Welding electrodes, with combustible coverings, protect the arc by

forming a gaseous shield

fluxing off any impurities

forming a protective slag

consuming any oxygen

9.

1 point

straight polarity, DC welding,

is more suitable for overhead welding

concentrates most of the heat in the work

concentrates most of the heat in the electrode

should only be performed by a qualified welder

10.

1 point

welding requires

low voltage and high amperage

high voltage and high amperage

low voltage and low amperage

high amperage and low voltage

11.

1 point

The most common method of pressure vessel manufacturing is

fusion welding

riveting

brazing

pressure welding

12.

1 point

The colour of the oxygen hose in the oxyacetylene welding is:

red

orange

blue

green

13.

1 point

Acetylene is stored in cylinders at a pressure of

3250 kpa

150 kpa

1720 kpa

2200 kpa

14.

1 point

In submerged arc welding, the electrode is a ________ electrode

mineral covered

carbon

bare wire

combustible coated

15.

1 point

A pocket formed by moisture trapped in the weld is called

porosity

boxing

a plug

a blow hole

16.

1 point

A number two oxyacetylene torch uses:

Two psi of oxygen

Two psi of acetylene

Twice the amount if oxygen to acetylene

Two psi of each; acetylene and oxygen

17.

1 point

A reducing flame is

used for cutting steel

lame rich in oxygen

used solely for heating

rich in acetylene

18.

1 point

Stress created by the welding restrained parts, which are not free to shrink during cooling, is called _________ stress.

compressive

ultimate

shear

reaction

19.

1 point

Visual inspections usually begin

during fabrication

prior to fabrication

during commission

after the part is completely assembled

20.

1 point

On a welding electrode the third digit indicates

penetration

tensile strength

current

position