Question 1

Which of the following are potential safety hazards when operating a lathe?

Accepted Answer

3.	Removing long stringy chips with bare hands and guards when turning to view the operation

Answer

2.	Wearing PPE and applying safety  standard

Answer

1.	Stopping the machine using the emergency stop and wearing barrier cream

Answer

4.	All of the above

Question 2

Which two of the following are good working practices?

Accepted Answer

. Tools and equipment should be clean and returned to designated place and documentation must be returned for safe keeping

Answer

. Storing oily rags in overall pockets and Removal of metal chips from lathe tray with bare hands

Answer

. Leaving the machine  while it is running and wearing gloves while machining.

Answer

. Wearing loose sleeved overall and leaving waste bins in gangway.

Question 3

Which of the following can be used to protect a finished diameter when using a work carrier while turning between center

Accepted Answer

Brass and tin  sheet

Answer

Cloth and paper

Answer

Sand paper and cardboard

Answer

Cloth and Brass

Question 4

What are the effects of clamping the workpiece in a chuck or work holding device

Accepted Answer

To be held securely while revolving at the same time as being cut

Answer

To crush or damage the work

Answer

To enable the work to rotate at high speeds

Answer

To be able to leave the machine running unattended

Question 5

Over tightening the workpiece in the chuck hard jaws can cause?

Accepted Answer

Indentations or distortion to the work piece

Answer

Good surface finish

Answer

Accurate dimensions

Answer

The ability to run at higher speeds

Question 6

Backlash in machine slides and screws is a result of ?

Accepted Answer

The wear between a lead screw and drive nut

Answer

Using the wrong spindle speeds

Answer

Not using coolant

Answer

Selecting the wrong federate

Question 7

How can backlash be overcome?

Accepted Answer

By applying the turning pressure in one direction only

Answer

By reducing the depth of cut

Answer

By taking more trial cuts

Answer

By increasing the feed rate

Question 8

When taking roughing cuts, what is the effect on tool life?

Accepted Answer

High pressure and temperatures are put on the cutter causing the cutting edge to break down

Answer

. Low pressure and minimal heat generation is put on the cutter giving good surface finish

Answer

The tool leaves a better surface finish and has minimal tool wear .

Answer

All of the above

Question 9

What is the name given to the type of tool that would be used for general turning and facing?

Accepted Answer

Right hand knife edge tool

Answer

Chamfer tool

Answer

Forming tool

Answer

Undercut tool

Question 10

Which of the following statements best describes a root cause for excessive tool wear when machining a hard material?

Accepted Answer

The RPM is set too high

Answer

The depth of cut is too shallow and must be increased

Answer

The cutting tool is defective and must be replaced

Answer

The feed is set slightly below the recommended feed rate

Question 11

How is feed rate designated on a lathe machine?

Accepted Answer

Inches per revolution

Answer

Inches per minute

Answer

Feet per revolution

Answer

Feet per second

Question 12

What is the term used for the type of material that does not require cutting fluid to be used?

Accepted Answer

Self lubricating

Answer

High tensile
3. Low

Answer

Low carbon

Answer

Abrasive

Question 13

Which of these are most common signs of tool wear and imminent failure?

Accepted Answer

A burning smell,  metal chips becomes blue and vibrating hand wheel

Answer

Chips are uniform in color and size

Answer

Clean edge  and no smoke

Answer

Chips are uniform in color and size

Question 14

A small pip was left on the end of a workpiece during a facing operation. The root cause for this is?

Accepted Answer

The tool is set below center height

Answer

The end relief of the tool is too large

Answer

The tool is incorrectly ground

Answer

The tool is set on center height

Question 15

If the top rake and side rake are ground too steep on a turning tool, what effect could this have on tool life?

Accepted Answer

The cutting edge becomes weakened

Answer

The cutting edge has greater strength

Answer

Nothing happened

Answer

Greater lasting tool life

Question 16

If you encounter a problem that you cannot resolve what should you do?

Accepted Answer

Seek advice from the appropriate competent person

Answer

Act on your own initiative and carry on regardless

Answer

Research it on the internet

Answer

Consult a non competent person for help

Question 17

Which part of Lathe Machine indicates the Carriage?

Accepted Answer

N

Answer

C

Answer

D

Answer

A

Question 18

Which part of Lathe Machine indicates Tailstock?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 19

Upon completion of work activities, which of these  are good practices?

Accepted Answer

Tools and equipment should be cleaned and returned to the designated place and
all documentation should be returned to a designated place for safekeeping

Answer

Machines left switched on ready for the next person and should be isolated after use

Answer

All documentation should be discarded and any broken or damage tools should be left for next person to carry on using

Answer

All of the above

Question 20

Which part of the Lathe machine indicates main safety features

Accepted Answer

D&L

Answer

L&B

Answer

L& C

Answer

D&B

Question 21

Which of the following type of personal protective equipment (PPE) is best for Milling operations?

Accepted Answer

Safety glasses with side shields

Answer

Ear plugs

Answer

Heat resistant gloves

Answer

Back support vest

Question 22

A system of tolerance is best described as?

Accepted Answer

The acceptable amount of deviation allowed from a given dimension

Answer

The minimum stock allowance for reaming holes

Answer

The number of scrap parts allowed

Answer

The distance from a given datum face

Question 23

Which part of Lathe Machine indicates the Headstock?

Accepted Answer

E

Answer

B

Answer

A

Answer

C

Question 24

Using the photo which letter indicates the working table?

Accepted Answer

C

Answer

E

Answer

A

Answer

B

Question 25

Which of the tools below would you use to cut a slot using a milling machine?

Accepted Answer

D

Answer

A

Answer

C

Answer

B

Question 26

Which part of Lathe Machine indicates the Coolant pipe ?

Accepted Answer

C

Answer

L

Answer

A

Answer

B

Question 27

Using the photo above which letter indicates the Knee?

Accepted Answer

A

Answer

B

Answer

D

Answer

C

Question 28

Which of the following do you need before you can safely operate a milling machine?

Accepted Answer

Suitable training, a well-maintained machine, an engineering drawing and correct PPE

Answer

Suitable training, an iPad, an engineering drawing and correct PPE

Answer

Suitable training, a well-maintained machine, a sketch and correct PPE

Answer

Suitable training, a well-maintained machine, an engineering drawing and gloves

Question 29

Which of the tool shown is used for  Knurling operation?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 30

If you have to mill a slot 20mm long and the tolerance is +/- 0.1mm what is the maximum length of slot allowed?

Accepted Answer

20.1mm

Answer

20.01mm

Answer

20mm

Answer

20.11mm

Question 31

Which of the following steps should not be carried out when lifting?

Accepted Answer

Lift with arms only and keeping the back hunched

Answer

Keep the back straight

Answer

Keep the arms straight

Answer

None of the above

Question 32

The Engineering drawing has symbol shown opposite, represents which type of projection?

Accepted Answer

1st Angle projection

Answer

3rd angle projection

Answer

Isometric projection

Answer

4th angle projection

Question 33

The Engineering drawing has symbol shown the opposite, represents which type of projection?

Accepted Answer

3rd angle projection

Answer

1st Angle projection

Answer

4th angle projection

Answer

5th angle projection

Question 34

Why is it important to use a fixed common reference point for dimensioning on drawings and sketches?

Accepted Answer

To eliminate accumulative errors

Answer

To accommodate tight tolerances

Answer

To avoid mis-interpretation

Answer

To give clarity and perspective to the sketch

Question 35

Which of the following materials do not require cutting fluid to be used?

Accepted Answer

Nylon and Cast iron

Answer

Brass  and Tin

Answer

Bronze and Aluminum

Answer

Stainless  and Mild steel

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