Kingsbury type bearings are designed to accommodate:
a) axial and radial loads.
b) high speed and heavy loads.
c) high axial loads and small radial loads.
d) back to back mounting.
high speed and heavy loads
The last two digits of ISO standard bearing code are used to indicate:
a) the service rating.
b) the outside diameter.
c) the bore diameter.
d) the width.
bore diameter
Rubbing or lip seals on antifriction bearings are used to:
a) keep the spacing between the rolling elements.
b) keep lubricants and debris outside the bearing.
c) keep lubricants inside the bearing.
d) none of the items listed.
keep lubricants inside the bearing.
Pick the angular contact bearing by the bearing code.
a) 5208
b) 6208
c) 7208
d) 8208
7208
Bearings having the marking C3 have:2
a) a clearance greater than standard.
b) a clearance lesser than standard.
c) oil grooves and holes at 120 degrees.
d) all of the items listed.
a clearance greater than standard.
True or False In the bearing code, balls have a five digit code.
false
The withdrawal sleeve is secured in the bearing using:
a) the nut on the sleeve.
b) the lockwasher.
c) the nut on the shaft.
d) the hydraulic nut.
but on the shaft
The use of direct or indirect hydraulic fluid pressure, for bearing removal, can be applied by:
a) forcing oil beneath the inner ring.
b) using a puller.
c) using a hydraulic nut.
d) all of the items listed.
all of the items listed.
A 22208 bearing has:
a) a tapered bore.
b) two rows of rolling elements.
c) one row of rolling elements.
d) shields and seals on both sides.
two rows of rolling elements.
For general usage, bearing housings are packed with grease to a minimum quantity of:
a) 1/4 housing.
b) 1/3 housing.
c) 2/3 housing.
halfway up the lowest rolling element.
1/3 housing.
What will be the result of adding shims between the cover and housing?
a) bearing preload will be reduced or axial float will be increased
b) bearing preload will be increased or axial float will be decreased
c) bearing preload will be increased or axial float will be increased
d) bearing preload will be reduced and axial float will be reduced
bearing preload will be reduced or axial float will be increased
An 18” level requires shims of 12 mils (0.012”) to bring it to level when it is placed on a 14” wide mill fixture. What shimming will be required to bring the fixture level?
a) 0.009”
b) 0.014”
c) 0.012”
d) 0.036”
0.012”
A good rule of thumb for a bearing installed clearance is ___________ of initial clearance.
a) 10%
b) 30%
c) 40%
d) 50%
50%
What is the minimum length of the bent leg on a foundation anchor?
a) twenty five times the diameter
b) deep enough to remain secure
c) four times the diameter
d) four times the depth it will be set into the foundation
four times the diameter
For what reason would a plumb bob be suspended into a pail of oil?
a) to provide circuitry for ohmmeter or electrical contact indicators
b) to ensure grounding in the case of a lightning strike or electrical fault condition
c) to minimize the effects of draughts and vibration on the line
d) to upset Gordon
to minimize the effects of draughts and vibration on the line
Select the most suitable tools for completing a rough alignment procedure.
a) dial indicator and vernier caliper
b) straightedge and feeler gauges
c) laser alignment set
d) dial indicator and feeler gauges
straightedge and feeler gauges
Which anchor is best suited for the edge of a concrete foundation?
a) expansion bolt
b) fixed
c) drop-in
d) adhesive
adhesive
Which of these is a correct ratio of a 3-4-5 triangle?
a) 12-16-18
b) 9-12-15
c) 6-8-12
d) 27-36-47
9-12-15
What is the recommended range of minus elevation measurement for grouting machinery?
a) 3mm – 5mm
b) 1/2” – 3/4”
c) 1/2” – 1”
d) 3/4” – 1-1/2”
3/4” – 1-1/2”
A master precision level has a sensitivity of:
a) 5 microinches per foot per division.
b) 0.0001 inches per foot per division.
c) 0.0005 inches per foot per division.
d) 0.001 inches per foot per division.
0.0005 inches per foot per division.
A 12 inch master precision level requires 0.008” (8 mils) of shims under one end to bring it level when it is placed on a machine tool bed that is 8 feet long. What shimming is required to level the bed?
a) 0.002”
b) 0.064”
c) 0.012”
d) 0.024”
0.064”
The mechanics or machinists level has a graduated sensitivity of:
a) 0.0005” per foot.
b) 0.001” per foot.
c) 0.005” per foot.
d) 0.010” per foot.
0.001” per foot.
Moisture insensitivity, corrosion, impact and chemical resistance are properties of:
a) Polymeric grout.
b) Cementitious grout.
c) Thermosetting grout.
d) Portland cement.
Polymeric grout.
Grout forms a connection between bed or soleplates and foundations, and:
a) transfers compression loads to the machine.
b) maintains precise alignment.
c) will not accommodate vibration.
d) all items listed.
maintains precise alignment.
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