mod 1.0

Question 1

safeguarding any machine part that may cause injury

Answer 1

machine safety

Question 2

machine accidents is cause by? (4)

Answer 2

-unwated contact with the machine
-something flying with the machine
-machine malfunction
-workpiece movement

Question 3

effects of machine related accidents (4)

Answer 3

-can result to severe injuries
-loss of trained employees
-loss in productivity
-damage equipment

Question 4

where mechanical hazards occur? (3)

Answer 4

-point of operation
-other moving parts
-power transmission

Question 5

that point where work is performed on the material, such as cutting, shaping, boring, or forming.

Answer 5

point of operation

Question 6

all components of the mechanical system that transmit energy to the part of the machine performing the work.

Answer 6

power transmission apparatus

Question 7

these components include flywheels, pulleys, belts, connecting rods, couplings, cams, spindles, chains, cranks, and gears.

Answer 7

power transmission apparatus

Question 8

turning around on an axis or center

Answer 8

rotating

Question 9

the back and forth movements of a machine part

Answer 9

reciprocating

Question 10

continuous straight line motion of a machine element in either direction

Answer 10

traversing

Question 11

in-running nip ponts draw objects in and the effect is —————?

Answer 11

crushing or shearing injury

Question 12

between rotating part and tangentially moving part

Answer 12

pinch points

Question 13

cutting hazards from rotating parts (3)

Answer 13

-caught by
-flying particles
-sparks

Question 14

during the back-and-forth or up-and-down motion, a worker can be struck by a moving part of caught between a moving and a stationary part. these are normally referred to as ——————————–?

Answer 14

pinch points or caught-between hazards

Question 15

this motion is hazardous due to continuous straight line action and in-running nip points.

Answer 15

traversing motion

Question 16

methods o machine safeguarding (guards) -3

Answer 16

-fixed
-interlocked
-adjustable

Question 17

2 types of adjustable

Answer 17

-manually adjustable
-self-adjusting

Question 18

methods of machine safeguarding (devices) -4

Answer 18

-presence sensing device
-pullback device
-restraint device
-safety control devices

Question 19

3 type of safety control devices

Answer 19

-tripwire cable
-two-hand control
-emergency stop button

Question 20

are barriers that prevent entry of an individual’s hands or other body parts into a hazard area.

Answer 20

guards

Question 21

this type of guard is attached to a fixed surface and encloses the hazard.

Answer 21

fixed barrier guard

Question 22

when in place, it prevents anyone from going over, around, under, or through it to the hazard. the principal advantage of the fixed enclosing guard is that it always prevents access to the hazard area.

Answer 22

fixed barrier guard

Question 23

this type prevents machine motion until the guard is moved into place.

Answer 23

movable guards with interlocking switches

Question 24

this type This type of guard can be positioned to accommodate a variety
of operations or work and when properly adjusted provides
adequate protection from the hazard at the point of operation.

Answer 24

adjustable guard

Question 25

Provides a barrier which moves according to
the size of the stock entering the danger area.

Answer 25

self-adjusting guard

Question 26

Requirements for Machine Guards
Safeguards must meet these minimum general requirements: -6

Answer 26

•Prevent employee contact with hazardous moving parts
•Secured and durable
•Prevent falling materials into moving parts
•Create no new hazards
•Must not interfere with worker productivity
•Should allow for proper and safe lubrication

Question 27

Any mechanical or electrical devices designed to
protect a worker’s hands or other body parts from
coming into contact with a hazardous motion of a
machine.

Answer 27

safety devices

Question 28

are cable and wristlet systems tha t
attached to an operator’s hands and to the machine’s moving
slide or ram, or to a fixed object away from the point of
operation. They are usually used on machines having
reciprocating motions.

Answer 28

pullbacks and restraint devices

Question 29

are operator controls that require an
operator to hold both controls down during the hazardous
portion of the machine’s stroke.

Answer 29

two-hand control

Question 30

These are designed, constructed, and arranged to create a
sensing field, area, or plane that will detect in its field the
presence of an opaque object.

Answer 30

presence sensing devices

Question 31

Provides some protection from flying
particles, splashing cutting oils or coolants

Answer 31

protective shields

Question 32

The standard for the control of hazardous
energy sources which covers maintenance
of machines in which the unexpected start
up of machines or release of stored
energy could cause injury to employees.

Answer 32

lock-out / tag-out system or loto

Question 33

the uncontrolled current
and voltage in electrical circuits

Answer 33

electrical

Question 34

exposed crushing or
cutting parts of equipment or loose
parts

Answer 34

mechanical

Question 35

such as steam or due to
chemical reaction

Answer 35

thermal

Question 36

stored energy that may be
due to gravity, hydraulics, pneumatics,
vacuum or springs

Answer 36

potential

Question 37

A device that utilizes a positive means such as a lock
either key or combination type, to hold an energy isolating
device in the safe position and prevents the energizing of a
equipment

Answer 37

lockout devices

Question 38

nIncluded are blank flanges

Answer 38

lockout devices

Question 39

nA warning device, such as a tag and a means of attachment

Answer 39

tagout devices

Question 40

nCan be securely fastened to an energy isolating device in
accordance with an established procedure to indicate that
the energy isolating device and the equipment being
controlled can not be operated until the tag is removed

Answer 40

tagout devices

Question 41

sequence of lockout -6

Answer 41

-notify
-identify
-deactivate
-application
-dissipated
-verify

Question 42

removal of lockout -4

Answer 42

-ensure
-check
-notify
-remove