7.2 Flashcards
After using tools exposed in corrosive areas, what shall be done ?
Cleaned
What can tools be cleaned with ?
Stiff brush
Rag
Cleaning fluids
( after cleaned, apply lubricant to prevent corrosion )
What shall metal covered benches and wooden benches be cleaned with ?
Metal - oil rag
Wood - stiff brush
What shall vices be wiped over frequently with ?
Oily rag
When lubricating a grinders bearings, what must you take into consideration ?>
That oil or grease don’t come into contact with the grinding wheel.
Where must precision measuring interments be stored ?
In their own dedicated protective case.
Where should reamers be stored ?
In own case or grooved tray
Whats used in tool boxes to hold tools in place and make it easily visible if there is one missing ?
Shadow board
What must be recorded for tools used for measuring ?
Service history
Calibration details
What must you ensure is present when working with toxic materials ?
Local exhaust ventilation ( LEV )
What must two sealants do before disposal ?
Cure properly
Whats a dimension ?
Measurement
Whats a tolerance ?
Amount a dimension can vary
Whats a unilateral tolerance ?
Only has a tolerance in one direction
Whats a bilateral tolerance ?
Has tolerance in both directions ( can be + and - )
Whats clearance ?
Space between mating parts
( can be referred to as a loose or tight fit )
Whats a clearance fit ?
Fit that allows for sliding or rotating between the parts.
Whats an interference fit ?
When dimensions of two parts overlap.
Whats an allowance ?
Minimum clearance space between two parts .
What should the calibration label on a tool show ?
Date of last test
When next inspection is due
Authorised persons signature or stamp
What does an inventory control register specify ?
The tools that need periodic calibration
Where can the calibration of a tool be done ?
In house or
Sent to testing company
When are sensitive instruments calibrated ?
Before each use
( still require periodic calibration )
With tools which hold calibration well, when should there periodic calibration be ?
Annually
Whats a torque wrenches tolerance ?
+/- 5%
How can you ensure a torque wrench is correctly adjusted ?
Use a torque analyser to check
How is pressure gauges and transmitters calibrated ?
Hydraulic pumps.
How can you recalibrate a micrometer ?
Insert precision bold between anvil and spindle.
What angle should torque wrench be placed onto analyser ?
90 degrees
