Before changing accessories or performing maintenance on a power tool, make sure _____.

Before changing accessories or performing maintenance on a power tool, make sure _____.
 
  a. it is turned off
  b. your hands are dry
  c. to have a clean work surface
  d. the power is disconnected

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[Ques. 2] Before changing accessories or performing maintenance on a power tool, make sure _____.
 
  a. it is turned off
  b. your hands are dry
  c. to have a clean work surface
  d. the power is disconnected

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[Ques. 3] Because concrete is heavy, doing stretching exercises before working with it will help prevent _____.
 
  a. sore arms
  b. leg cramps
  c. strains and sprains
  d. bruises

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[Ques. 4] Because concrete is heavy, doing stretching exercises before working with it will help prevent _____.
 
  a. sore arms
  b. leg cramps
  c. strains and sprains
  d. bruises

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[Ques. 5] Because concrete is heavy, doing stretching exercises before working with it will help prevent _____.
 
  a. sore arms
  b. leg cramps
  c. strains and sprains
  d. bruises