. Trade tests; the scientific measurement of trade proficiency . PICTURE 11 16. Q. What is the relation between the pressures of the gas and airin that blow pipe?A. Air (oxygen) greater. THE PICTURE TRADE TEST METHOD 255. PICTURE 12 17. Q. What are those blow pipes used for?A. Cutting. RATING THE CANDIDATE Score Rating o to 12 inclusive N i6 to 28 inclusive A 32 to 48 inclusive J 52 to 68 inclusive E SECTION IVTHE PERFORMANCE TRADE TEST CHAPTER VI THE GENERAL NATURE OF THE PERFORM-ANCE TEST METHOD The performance test is nothing more than a standardized,practical trade job, involving the use o
. Trade tests; the scientific measurement of trade proficiency . PICTURE 11 16. Q. What is the relation between the pressures of the gas and airin that blow pipe?A. Air (oxygen) greater. THE PICTURE TRADE TEST METHOD 255. PICTURE 12 17. Q. What are those blow pipes used for?A. Cutting. RATING THE CANDIDATE Score Rating o to 12 inclusive N i6 to 28 inclusive A 32 to 48 inclusive J 52 to 68 inclusive E SECTION IVTHE PERFORMANCE TRADE TEST CHAPTER VI THE GENERAL NATURE OF THE PERFORM-ANCE TEST METHOD The performance test is nothing more than a standardized,practical trade job, involving the use of blue prints, materialand tools characteristic of the trade. The word performance ishere used in an arbitrary but definite way. It means the carry-ing out, with the help of tools and equipment, of certain proc-esses of the trade. Strictly speaking, the oral and picturetests are just as much performances as an actual operation ofthe trade. In one case the performance is largely mental — theanswer being oral; in the other case the performance is largelymanual — the operation of the hand. It will, however, for thepurpose of presentation, be convenient to limit the use of theword performance exclusively to actual
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