portable power and air tools

Question 1

GFCI stands for what

Answer 1

ground fault circuit interrupter

Question 2

what three kind of protection does a GFCI provide

Answer 2

overload
overcurrent
ground fault protection

Question 3

electric impact wrench requires how many volts

Answer 3

110v

Question 4

common drives for impact wrenches

Answer 4

square 1/2 and 3/8 drives

Question 5

what is not designed for impact tools

Answer 5

sockets
swivels
extensions

Question 6

3 common chuck capacities

Answer 6

6mm(1/4)
9mm(3/8)
12mm(1/2)

Question 7

the larger the chuck capacity equals what

Answer 7

the lower rpm and the higher the torque

Question 8

keyless chucks tend to have a higher what

Answer 8

gripping power compared to a conventional chuck

Question 9

heavy duty drills usually have what size chuck capacity

Answer 9

12mm(1/2)

Question 10

right angled drills are deigned for what

Answer 10

close quarter drilling

Question 11

hammer drills are used for what

Answer 11

drilling holes in masonry
concrete
hard materials

Question 12

hammer drills bits have what on the end

Answer 12

carbide tip

Question 13

hammer drills can also be used for what

Answer 13

jack hammering
chiseling
grooving
rough concrete surface

Question 14

two portable angle grinders

Answer 14

electric
pneumatic

Question 15

what are die grinders used for

Answer 15

polishing workpieces or removing burrs

Question 16

heavy air grinders are used for what

Answer 16

rapid removal of metal

Question 17

what is he use of wire wheels

Answer 17

clean workpiece of dirt and scale (they do not move metal)

Question 18

what are buffer wheels used for

Answer 18

polishing workpieces

Question 19

buffer wheels are made of what

Answer 19

cloth and charged with a very fine abrasive

Question 20

what is the best protection against injury

Answer 20

care and good judgement

Question 21

general purpose grinding disc

Answer 21

aluminum oxide

Question 22

sanding discs are used for what

Answer 22

light finishing, deburring and chamfering

Question 23

flap wheels consist of

Answer 23

strips of coated abrasive attached to a hub

Question 24

the higher the voltage

Answer 24

the greater the power of the tool

Question 25

ANSI stand for what

Answer 25

American national standards institute

Question 26

what does ANSI recommend

Answer 26

support handles on drills with chuck capacities over 3/8 inch (10mm)

Question 27

hand and foot vibrations cause what medical problems

Answer 27

carpal tunnel syndrome tendonitis repetitive stress

Question 28

no job is so urgent that

Answer 28

you cannot do it safely

Question 29

3 mian types of portable air tools

Answer 29

rotary tools percussive tools nozzles

Question 30

die grinders can operate at what speeds

Answer 30

20,000 rpm

Question 31

angle grinders can operate at what speeds

Answer 31

7,500 rpm

Question 32

undirectional vane motors are used in what

Answer 32

air grinders and sanders

Question 33

air drills and screwdrivers can either be

Answer 33

unidirectional or bidirectional

Question 34

impacts and splines drives are

Answer 34

bidirectional

Question 35

4 basic. pneumatic drill designs

Answer 35

pistol grip in line heavy-duty drills with support handles pneumatic screwdrivers

Question 36

pistol drills are sure for

Answer 36

medium duty drilling

Question 37

in line pneumatic drills are used for

Answer 37

light duty work only

Question 38

examples of percussive tools

Answer 38

chipping hammer scaling hammer jackhammer air nailers engraving tools

Question 39

what are nibblers used for

Answer 39

cutting thin metal plate quickly and easy

Question 40

purpose of a GFCI

Answer 40

it sense a drop in current and switches off the power to the portable electric tool