Carry out mechanical cutting optional

What is the importance of selecting the appropriate tool/mahine for the job?

• For efficiency and to save on material

• To show that you are aware of you job to be done

• To prove to the supervisor that you know your tool/machine

• Better able to master your job

State TWO (2) activities that can be performed by mechanical cutting tools..

• Ripping, seaming

• Sawing, shearing

• brazing,drilling

• cutting, molding

What is the purpose of the lubricant in mechanical cutting operations?

• soothing, the blades

• warn up cutting tool blades

• help blades to move freely

• cooling cutting tools blades

What is Tolerance?

• The exact timing

• An allowable limit, the normal value

• Given time to tolerate a thing

• Time value

What factor should be consider if you are to use the material in the most economical way? Let say that Quiz is in the form of A, B, C, D, and E.

• Job specification instruction

• Correct machine to be selected for cutting correct measuring equipment

• Correct holding equipment

• A B,,and C

• None of the above

List the basic ingredients in concrete...

• Cement

• sand

• crush stone

• water

• All of the above

When casting a concrete floor, which tool is used to level off the concrete to he top of the screeds?

• Cordline

• Level

• Straight edge or strike off

• A plumber's rule

Why should concrete be placed as close as possible to its final?

• Prevent seperation of the ingredient

• Nearer to work area

• Easier to handle

• To keep all the ingredients to the final

Explain why it is necessary for the work or sub grade to be wet before placing concrete.

• For concrete to hold onto sub grade

• for the mixture to remain soupy

• So that the work is done in due time

• For easier access of concrete onto work

Why is the water/cement ratio very important when mixing concrete? Let say that Quiz is in the form of A, B, C, D and E.

• The quality of cement paste determine the quality of the concrete

• Too much water will weaken the concrete

• The more water the better the mix

• A and B

• C only