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Semester Final Exam

Total questions: 74

Worksheet time: 37mins

Name
Class
Date
1.

A good area safety practice is writing _______________ on hot metal before leaving it unattended.

a)

HOT

b)

COLD

c)

SAFE

d)

WET

2.

A loud snap or pop as a torch flame is extinguished is called? _______________

a)

backfire

b)

flashback

c)

blowout

d)

flare-up

3.

A metal edge can be just as ______________________ as the tools that cut it.

a)

dangerous

b)

useful

c)

heavy

d)

expensive

4.

Accidents are most likely for employees in the age group _______________ why? _________________________________.

a)

16-25; less experience, more risk-taking behavior

b)

26-35; most physically active age group

c)

36-45; highest job satisfaction

d)

46-55; most experienced workers

5.

Always have the instructor’s _______________ before operating and machinery.

a)

permission

b)

tools

c)

schedule

d)

notes

6.

Always wear __________________________ protections when working with power tools or other noisy machinery.

a)

hearing

b)

eye

c)

hand

d)

foot

7.

Always wear your __________________________ whenever you’re in the shop.

a)

safety glasses

b)

sandals

c)

earrings

d)

baseball cap

8.

An oxy-fuel cutting torch should be checked for leaks when?

a)

before use

b)

after use

c)

during storage

d)

while cutting

9.

Because of its instability, the acetylene gas used in oxy-fuel cutting system must remain at pressures less than _______________ psi when in its gaseous form.

a)

15

b)

30

c)

50

d)

100

10.

Because of the liquid acetone inside an acetylene cylinder, acetylene cylinders must always be used in a (n) __________________________ position.

a)

upright

b)

horizontal

c)

inverted

d)

tilted

11.

Before a pipe can be welded to a fitting or connection, its edge usually must be __________________________.

a)

beveled

b)

painted

c)

threaded

d)

capped

12.

Before cutting with the torch or welding with the arc welder, the most important thing you need to do to make a good cut or good weld is:

a)

Ensure the equipment is properly set up and adjusted

b)

Wear comfortable clothes

c)

Work as quickly as possible

d)

Use any available tool

13.

Before performing oxy-fuel cutting on a cleaned container, fill the container with an inert gas or __ and position the container to displace as much air as possible from inside the container.

a)

Water

b)

Oil

c)

Sand

d)

Steam

14.

Corrosion of metals occurs when they are exposed to ________.

a)

Air

b)

Light

c)

Sound

d)

Magnet

15.

Definition of fabrication: ________, ________, and ________.

a)

Make, Create, Construct

b)

Design, Analyze, Test

c)

Plan, Organize, Execute

d)

Invent, Discover, Explore

16.

Gas pockets, inclusions, or a void in the metal is called what? ________

a)

Porosity

b)

Ductility

c)

Malleability

d)

Hardness

17.

Grinding wheels that are used improperly or are poorly selected can cause injury due to ________.

a)

Shatter and/or Break

b)

Rusting

c)

Melting

d)

Electrical Shock

18.

How far should an exhaust hood be located from the source of the welding fumes?

a)

4 to 6 inches

b)

10 to 12 inches

c)

1 to 2 feet

d)

18 to 24 inches

19.

If an acetylene cylinder is tipped over, stand the cylinder upright and wait at least ________ before using it.

a)

30 min

b)

5 min

c)

10 min

d)

1 hour

20.

Matches and gas filled lighters should not be carried while operating a torch or an arc welder why?

a)

matches will ignite and Lighters will explode

b)

matches will cool down and lighters will freeze

c)

matches will melt and lighters will leak

d)

matches will get wet and lighters will rust

21.

Most work site fire are caused or started by?

a)

Torch or Oxy-fuel system

b)

Electrical short circuit

c)

Water leakage

d)

Manual handling error

22.

Name 3 tips for the torch? ________, ________, and ________.

a)

Cutting, Welding, Heating

b)

Soldering, Melting, Cooling

c)

Painting, Sanding, Polishing

d)

Drilling, Grinding, Sawing

23.

Name 4 steps to master in the process of becoming a welder in order.

a)

Flat, Horizontal, Vertical, Overhead

b)

Arc, MIG, TIG, Flux

c)

Cutting, Grinding, Polishing, Painting

d)

Welding, Soldering, Brazing, Forging

24.

Name 6 different kinds of weaves.

a)

Square, Circle, J, C, 8, Zig-Zag

b)

Square, Triangle, Hexagon, Spiral, Loop, Wave

c)

Flat, Round, Twisted, Braided, Knotted, Woven

d)

Circle, Square, Rectangle, Oval, Diamond, Star

25.

Name the 4 rods that you use in the shop?

a)

6010, 6011, 6013, 7018

b)

6010, 6011, 6013, 7024

c)

6010, 6011, 6013, 6012

d)

6010, 6011, 6013, 6014

26.

On the acetylene regulator what PSI of pressure can you put the regulator for a 3/8 plate?

a)

3-5

b)

6-8

c)

10-12

d)

1-2

27.

On the oxygen regulator what PSI of pressure can you put the regulator for a 3/8 plate?

a)

25-30

b)

10-15

c)

40-45

d)

60-65

28.

Report ________ accidents to the instructor.

a)

All

b)

No

c)

Few

d)

Some

29.

The first thing to be done at any jobsite before work begins is to ________.

a)

Check for hazards

b)

Start working immediately

c)

Ignore safety protocols

d)

Wait for instructions

30.

The potential for electric shock ________ when the skin is damp.

a)

Increases

b)

Decreases

c)

Remains the same

d)

Disappears

31.

The regulators used on fuel gas cylinders are often painted red and they always have ________ on all connections.

a)

Left hand threads

b)

Right hand threads

c)

No threads

d)

Double threads

32.

The regulators used on oxygen cylinders are often painted green and always have ________ on all connections.

a)

Right hand threads

b)

Left hand threads

c)

No threads

d)

Reverse threads

33.

The risk of flash burns can be reduced by wearing what?

a)

Proper tinted lenses

b)

Cotton gloves

c)

Leather boots

d)

Woolen scarf

34.

The safety attachment on the torch handle that allows the gas to flow only in one direction is called a?

a)

Check valve

b)

Pressure regulator

c)

Flashback arrestor

d)

Flow meter

35.

The safety fuse plugs on the top and bottom of an acetylene cylinder are designed to do what?

a)

Melt, to release the gas to prevent the cylinder from exploding during a fire

b)

Increase the pressure inside the cylinder

c)

Seal the cylinder permanently

d)

Cool the cylinder during use

36.

The safety items on the torch that won’t let the fire go into the cylinder is called?

a)

Flashback Arrestor

b)

Pressure Regulator

c)

Nozzle Tip

d)

Gas Hose

37.

To avoid injury from dirt that may be lodged in the valve and regulator seat of a gas cylinder, always stand ________ of the valve when opening the valve to clear the regulator seat.

a)

to the side

b)

in front

c)

behind

d)

on top

38.

To prevent fume hazards there must be at least ________ cubic feet of air for each welder.

a)

10,000

b)

5,000

c)

15,000

d)

20,000

39.

Welders need to have a ________ attitude when performing welding.

a)

Can-Do

b)

Careless

c)

Negative

d)

Indifferent

40.

Welding can be ________ and safe.

a)

Fun

b)

Dangerous

c)

Boring

d)

Impossible

41.

Welding can be done where ________, ________, and ________.

a)

Under water, Open air, and space

b)

Only in open air, closed rooms, and factories

c)

On land, in tunnels, and in deserts

d)

In laboratories, offices, and classrooms

42.

What are the names of the two fabrics you can use in the welding shop besides leather? Why?

a)

Cotton and Wool. Why? Resist sparks.

b)

Polyester and Silk. Why? They melt easily.

c)

Nylon and Rayon. Why? They catch fire quickly.

d)

Acrylic and Spandex. Why? They are synthetic.

43.

What are the two codes you can get a certification on?

a)

D9.1, D1.1

b)

D2.1, D3.1

c)

A5.2, B4.3

d)

C6.4, E7.5

44.

What are the yellow safety caps on the oxygen and acetylene called?

a)

Clam shells

b)

Ring Guards

c)

Valve Covers

d)

Safety Shields

e)

End Caps

45.

What are two common types of accidents?

a)

Personal and Physical

b)

Chemical and Biological

c)

Natural and Man-made

d)

Mechanical and Electrical

46.

What color are the acetylene cylinder, regulator, and hoses?

a)

Red

b)

Blue

c)

Green

d)

Yellow

47.

What color are the oxygen cylinder, regulator, and hoses?

a)

Green

b)

Blue

c)

Red

d)

Yellow

48.

What do the first 2 or 3 numbers on the rod indicate?

a)

PSI

b)

Length in inches

c)

Temperature

d)

Serial number

49.

What does AC stand for?

a)

Alternating Current

b)

Air Conditioner

c)

Active Circuit

d)

Analog Converter

50.

What does DC stand for?

a)

Direct Current

b)

Dynamic Circuit

c)

Digital Converter

d)

Dual Channel

51.

What does PSI stand for?

a)

Pounds per Square Inch

b)

Pressure Standard Index

c)

Power Supply Indicator

d)

Potential Signal Input

52.

What does the 1F, 2F, 3F and 4F mean?

a)

Position

b)

Force

c)

Frequency

d)

Friction

53.

What is another color used with the acetylene?

a)

Black

b)

Red

c)

Blue

d)

Green

54.

What is MSDS and its purpose?

a)

material safety data sheet. Tells you the potential hazards the product contains.

b)

medical safety data sheet. Provides information about first aid procedures.

c)

mechanical safety data sheet. Describes machine maintenance steps.

d)

material storage data sheet. Lists storage requirements for chemicals.

55.

What is PPE and why do you need it?

a)

Personal Protective Equipment. Extra protection for your body.

b)

Personal Performance Evaluation. A test for athletes.

c)

Public Policy Enforcement. Rules for government officials.

d)

Primary Power Equipment. Machines used in factories.

56.

What is the coating on the rod called?

a)

Flux

b)

Electrode

c)

Slag

d)

Core

57.

What is the code for Sheet Metal Code? _____________________________

a)

D9.1

b)

A36

c)

B31.3

d)

C45.2

58.

What is the code for Structural Steel?

a)

D1.1

b)

A36

c)

E7018

d)

ASTM A992

59.

What is the most effective hearing protection is provided by _____________________________

a)

Ear muffs

b)

Cotton balls

c)

Earphones

d)

Headbands

60.

What is the thickness of a D1.1 plate?

a)

3/8 and 1/2

b)

1/4 and 5/16

c)

5/8 and 3/4

d)

7/8 and 1

61.

What is the thickness of a D9.1 plate?

a)

3ga. Or 1/4

b)

5ga. Or 3/16

c)

10ga. Or 1/8

d)

1/2

62.

What is the tool on the arc welder that holds the rod called?

a)

Electrode Holder

b)

Welding Clamp

c)

Ground Cable

d)

Torch

63.

What is the tool used to mark on the metal surface called?

a)

Soap stone

b)

Chisel

c)

Hammer

d)

File

64.

What is the tool used to turn on the torch called?

a)

Striker or friction lighter

b)

Hammer

c)

Screwdriver

d)

Pliers

65.

What kind of test is done for the structural steel code? _____________________________ and _____________________________

a)

Micro etch and Break test

b)

Tensile and Impact test

c)

Bend and Hardness test

d)

Fatigue and Creep test

66.

What kind of test is done to Sheet metal code?

a)

Visual

b)

Ultrasonic

c)

Magnetic Particle

d)

Radiographic

67.

What should be done to all equipment to help insure against electrical shock before you do any maintenance?

a)

Unplug

b)

Increase voltage

c)

Spray with water

d)

Cover with plastic

68.

What two fabrics you shouldn’t use in the shop? ___________ and ____________ Why not? ___________________________.

a)

polyester and silk. When it melts it sticks to your skin.

b)

cotton and wool. They are too absorbent.

c)

denim and linen. They are too heavy.

d)

nylon and leather. They are too expensive.

69.

What type of material should be placed on the inside and outside of the shaded lens?

a)

clear or plastic lense

b)

metal sheet

c)

wooden board

d)

rubber pad

70.

When a cutting job is completed and the oxy-fuel equipment is no longer needed, the first step in shutting down the oxy-fuel cutting equipment is to what?

a)

turn off the fuel

b)

turn off the oxygen first

c)

disconnect the hoses

d)

remove the regulators

71.

When welding, wear high-top safety boots at least ____________ inches tall.

a)

8 inches

b)

4 inches

c)

6 inches

d)

10 inches

72.

Where do you mark an empty cylinder?

a)

on the shoulders

b)

on the base

c)

on the valve

d)

on the body

73.

Why should a fan or vacuum be placed in the welding area?

a)

to blow out or suck out the fumes

b)

to cool down the welding machine

c)

to increase the brightness in the area

d)

to reduce the noise level

74.

75. Your ____________________________ are the most important tool in your tool box.

a)

safety glasses

b)

work boots

c)

gloves

d)

hard hat