1) The bearings in a car wheel are subjected to
Radial load only
Thrust load only
Neither radial nor thrust load
Both radial and thrust load
2) The construction feature which makes tapered roller bearings unique is that races are
attachable
self-aligning
none of the above
separable
3) The advantage of the tapered roller bearing is that
each roller has a share in the total workload.
each roller can align itself perfectly between the tapered faces of the cup and cone, without guidance by the cage.
its wide contact area compels each roller to maintain accurate alignment.
all of the above
4) Which of the following is classified as antifriction bearing?
Ball bearing
Roller bearing
Needle bearing
All of the above
5) Cylindrical roller bearing applications include
transmissions
differentials
rear axle shaft
all of the above
6) An example of a non-tapered roller bearing is the
cylindrical roller bearing
needle roller bearing
both of the above
none of the above
7) A tapered roller bearing has the ability to handle
radial loads only
thrust loads only
all loads in any combination
none of the above
8) The rib ………………… the rollers in a tapered roller bearing
lubricates
turns
restraints
none of the above
9) Which of the following bearing is used for high axial thrust load?
Ball bearing
Needle bearing
Taper roller bearing
can use anyone from the above
10) A barstool is subjected to
Radial load only
Both radial and thrust load
Thrust load only
Neither radial nor thrust load
11) Loads applied parallel to the axis of the bearing are called
axial loads
concentric loads
thrust loads
central loads
12) The main function of the cage in a ball bearing is to ............
a) reduce friction
b) to maintain the distance between the ball in bearing
c) to prevent the ball from overlapping
d) both (b) and (c)
13) Different types of bearings are designed to operate at different operating speeds. Speed is specified as the maximum
RPM
metres / second
metres / minute
metres / hour
14) Which type of fit is used in the inner race with shaft while mounting a ball bearing?
precision slide
large clearance
loose running
interference
15) The speed of fluid and magnetic bearings is limited by
centrifugal force
axial force
centripetal force
radial force
16) Which one of the following parts of a ball bearing acts a barrier between the balls preventing them from bumping into each other?
Inner race
Cage
Outer race
Rolling element
17) Which one of the following parts of a ball bearing is mounted on the rotating shaft and tends to rotate the shaft?
Outer race
Inner race
Rolling element
Cage
18) Which one of the following parts of a ball bearing is mounted to the housing and is stationary?
Inner race
Rolling element
Outer race
Cage
19) What type of bearings will you recommend for use in conveyor belt rollers?
Ball bearings
Needle bearings
Roller bearings
Magnetic bearings
20) A needle bearing is a roller bearing with rollers whose length are at least times their diameter.
Two
Six
Four
Eight
21) Journal bearings are sometimes called
Flexure bearings
Friction bearings
Antifriction bearings
Jewel bearings
22) Babbitts most widely used bearing materials are
a) tin-based
b) lead-based
c) both (a) and (b)
d) Neither (a) nor (b)
23) Which of the following material is not used for making bearing?
Plastic
Nylon
Cast iron
Glass
24) What is the major difference between the radial plain bearing and thrust plain bearing?
in their design
in the shape of the shaft
in the direction of the load with the shaft axis
there is no major difference between them
25) Which of the following statement is NOT correct about anti-frictional bearing when compared with the plain bearing?
Starting friction torque is low
Ease of lubrication
Readily replaceable item as the stock item
have more capacity to withstand shock
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