The following are pneumatic tools, except *

1 point

A. air hammer, impact wrenches, air jacks

B. air hose, air rackets, air jacks

C. air hammer, air racket and air hoses

D. power saw, disk grinder, socket

Hydraulic tools include: *

1 point

A. car lifts, floor jacks, impact wrenches, air hammers

B. car lifts, portable cranes, air rackets and air jacks

C. car lifts, floor jacks, portable cranes and hydraulic presses

D. floor jacks, hydraulic presses, air hammers, rackets

When using a grinding wheel, *

1 point

A. always wear safety goggles

B. never adjust the tool when it is working

C. never touch the wheel when it is rotating

D. use apron

Electrician A says it is all right to perform activity without permission from the teacher because he knows the procedure. Electrician B says you should seek permission from the teacher before performing any activity. Who is right? *

1 point

Electrician A

B. Electrician B

C. neither A or B

D. both A and B

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