ISE 3600 Final Exam Questions &
Answers
What are the 3 different types of limits to which vibration data should be compared? -
ANSWERS-Exposure limit = Maximum possible exposure allowed for whole body vibration,
beyond which help is impaired
- Fatigue limit = Decreased proficiency boundary. Performance known to be adversely affected
- Reduced comfort boundary = Used to assess comfort of people traveling in airplanes, boats,
buses, automobiles
What are the main parameters that describe vibration exposures? - ANSWERSmagnitude of
acceleration, vibration frequency(ies), directionality, duration of exposure.
How can vibration exposure be controlled? - ANSWERS1. source: tool selection/speed, tool
balancing and maintainance (min vibration level)
2. path: limit exposure time, rotate personnel, rest periods, min weight (reduce force and
therefore transmissibility of vib)
3. receiver: isolate vibration, damping apparel (gloves), adapt posture, reduce contact areas,
etc.
What was learned from the study of vibration exposure while operating lift trucks on a
shipping/receiving dock? - ANSWERS1. Slowing down the lift trucks by 2 mph can have a
measurable effect on shock forces experienced by the
operation. 2. There were sizeable differences across the two docks
suggesting that dock plates should be routinely eval, short term more shockful ones should be
avoided. 3. Adding an additional mat on top of the one that is
already there had little effect. 4. The new shock absorbing truck had the largest effect in
reducing both the tibial shock and the ground reaction force measures
, What are the main principles that should guide the design or selection of handtools used in a
job? - ANSWERS-Maintain straight wrists
-Avoid tissue compression
-Avoid repetitive finger action
-Design for safety
-Pinch points
-Handle stops
-Sharp edges and corners
-Brakes for power tools
-Placement for power tools
-Predict misuse
-Consider hand size range and left hand users
-Consider tool weight
What is the value of a tool balancer or something like the Equipois that you saw at COHAM? -
ANSWERSTake stress of joints and so you don't have to bend or twist to pick up tools
What does a lift table do for a person? What does a turn table do for a person? - ANSWERSlift
table brings work to height of less bending.
turn table: turn to work on things, reach things to pick
What is the value of a conveyor system like the dyestuff-it machine? - ANSWERSjust drag box
onto it instead of lifting it down, it has a step stool so less high lifting reaches. reduces demand
on back and shoulder muscles
Bent handled pliers - ANSWERScan keep wrist posture straight depending on task.
Answers
What are the 3 different types of limits to which vibration data should be compared? -
ANSWERS-Exposure limit = Maximum possible exposure allowed for whole body vibration,
beyond which help is impaired
- Fatigue limit = Decreased proficiency boundary. Performance known to be adversely affected
- Reduced comfort boundary = Used to assess comfort of people traveling in airplanes, boats,
buses, automobiles
What are the main parameters that describe vibration exposures? - ANSWERSmagnitude of
acceleration, vibration frequency(ies), directionality, duration of exposure.
How can vibration exposure be controlled? - ANSWERS1. source: tool selection/speed, tool
balancing and maintainance (min vibration level)
2. path: limit exposure time, rotate personnel, rest periods, min weight (reduce force and
therefore transmissibility of vib)
3. receiver: isolate vibration, damping apparel (gloves), adapt posture, reduce contact areas,
etc.
What was learned from the study of vibration exposure while operating lift trucks on a
shipping/receiving dock? - ANSWERS1. Slowing down the lift trucks by 2 mph can have a
measurable effect on shock forces experienced by the
operation. 2. There were sizeable differences across the two docks
suggesting that dock plates should be routinely eval, short term more shockful ones should be
avoided. 3. Adding an additional mat on top of the one that is
already there had little effect. 4. The new shock absorbing truck had the largest effect in
reducing both the tibial shock and the ground reaction force measures
, What are the main principles that should guide the design or selection of handtools used in a
job? - ANSWERS-Maintain straight wrists
-Avoid tissue compression
-Avoid repetitive finger action
-Design for safety
-Pinch points
-Handle stops
-Sharp edges and corners
-Brakes for power tools
-Placement for power tools
-Predict misuse
-Consider hand size range and left hand users
-Consider tool weight
What is the value of a tool balancer or something like the Equipois that you saw at COHAM? -
ANSWERSTake stress of joints and so you don't have to bend or twist to pick up tools
What does a lift table do for a person? What does a turn table do for a person? - ANSWERSlift
table brings work to height of less bending.
turn table: turn to work on things, reach things to pick
What is the value of a conveyor system like the dyestuff-it machine? - ANSWERSjust drag box
onto it instead of lifting it down, it has a step stool so less high lifting reaches. reduces demand
on back and shoulder muscles
Bent handled pliers - ANSWERScan keep wrist posture straight depending on task.
