Millwright Level 1-4 >> Millwright Alberta
Finals Actual Exam Solved Combined
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1. Radial brakes are classed as? - ANSWER Internal and external
2. Brakes are classed as? - ANSWER Radial and axial
3. Small Square jaw clutches must be engaged at? - ANSWER 10 rpm or less
4. The clutch with the slowest engagement time is the? - ANSWER Manually
activated clutch
5. Over running clutches are designed to? - ANSWER Lock up in one
direction
6. What best describes a Centrifugal lockup coupling? - ANSWER Fluid
coupling with an internal clutch
7. The style of clutch to use where no slipping can be tolerated is the? - ANSWER
Positive contact
,8. What is achieved in a speed reducing gear set - ANSWER Lower the rpm
and have more torque
9. What is the point of a speed increasing gear set? - ANSWER Increase the
speed of the driven and lower the torque
10. What is mechanical advantage in gears? - ANSWER Mechanical
advantage is when the speed is reduced and the torque is increased, this acts like
a longer lever arm
11. What is an overhung gear? - ANSWER An overhung gear has bearing
support only at one side, commonly used on beveled and hypoid gears
12. What is a pinion? - ANSWER A pinion is the smallest gear with the least
amount of teeth on a gear drive
13. Explain how straddle mounted gears are mounted - ANSWER Straddle
mounted gears are mounted between two bearings, much stronger and less shaft
deflection than overhung gears
14. What are internal gears? - ANSWER Internal gears have teeth on the
inside of the diameter of the gear
15. What is a compound gear train? - ANSWER Compound gear trains have
three or more shafts and four or more gears
,16. What is end play - ANSWER End play is when the gear or shaft is allowed
to move axially
17. What is pre-loading a bearing - ANSWER Pre-loading is giving the bearing
less than zero axial clearance, commonly used with tapered bearings
18. How does gear wear happen? - ANSWER Lack of lubrications, abrasives
in the gear train, incorrect tooth contact or extended heavy loads
19. What is the Addendum - ANSWER The addendum is the radial distance
from the pitch circle to the top land of the teeth
20. What is the dedendum? - ANSWER The dedendum is the radial distance
from the pitch circle to the bottom land of the tooth
21. What is whole depth - ANSWER While depth is the total height of the
whole tooth
22. What is gear clearance - ANSWER The space between the bottom land of
one gear and the top land of the meshing gear
What does the term "start" mean - ANSWER Describes the number of
thread starts on a worm gear box
What is contact pattern? - ANSWER Contact pattern refers to the pattern of
areas of the tooth that are in contact when the gears are meshed together
, What is backlash? - ANSWER Backlash is the clearance between the gear
teeth at the pitch line, about half way up the pitch line
What is the Helix angle? - ANSWER It's the angle of the tooth from my he
shaft axis of the gear
What is the pressure angle - ANSWER The pressure angle is the angle
between the line of action
What is a mitre gear - ANSWER Mitre gears are bevel gears, their shafts
must intersect at 90 degrees
What can light weight gears be made of? - ANSWER Zinc based,magnesium
based and copper based alloys
When using torque arms ensure that.. - ANSWER It is as close as possible to
a right angle
Detachable chain has a maximum speed of? - ANSWER 350 feet per minute
A silent chain has a code of SC412, the 12 signifies the? - ANSWER width
A double single strand sprocket is described by? - ANSWER two single chains
can be used by this sprocket
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