GRADE 8 BASIC TECHNOLOGY 3RD TERM MID TERM TEST 2022/2023

     Tools in metal work operation used for marking out the required shape of of a metal from a sheet before cutting is____

• Boring tools

• Marking out tools

•     Measuring tools

• Driving tools.

     The following, except one are examples of marking out tools.

• Mortise gauge

• Odd leg caliper

• Surface table

• Foldable wooden rule

     ____ is used to check the alignment and flatness of an object.

• Surface plate

•   Surface table

•        Dot punch

•    Trammel

       _____ tool used to measure small thickness  to a high degree of accuracy.

•     Vernier caliper

•        Micrometer screw gauge

• Center square

• Inside caliper

      ______ is used to measure internal diameter

• Inside caliper

• Outside caliper

• Trammel

•    Punch.

   _____ is used to measure external diameter.

• Inside caliper

•        Outside caliper

• Trammel

•       Punch

     Identify this instrument.

 

• Micrometer screw gauge

• Vernier caliper

• Trammel

•     Caliper

Identify this instrument

• Micrometer screw gauge

•          Vernier caliper

•         Trammel

• Caliper

    The principle of operation of an electric kettle is based on

•      Heat developed in the heating element from the introduction of electrical energy.

•     High voltage causing cooling of the element.

•     High current causing an increase in kinetic energy of the element.

• None of the above.

 Gas cooker is an  appliance that convert _____ energy to ___ energy

•       Potential/kinetic

•        Chemical/electrical

•     Electrical /chemical

•    Chemical /heat.