Power Engineering Class 4B Book 1 Lubrication and
Bearings Questions With Complete Solutions
A anti-friction bearing
a) is constructed with white metal alloy
b) Wears to a smooth, low-friction surface
c) Has rolling friction
d) is a sleeve bearing
e) Tapered rollers Correct Answers c
A collar type bearing
a) Can support more load than the mitchell thrust bearing
b) Is an anti friction type bearing
c) is used with steam turbines only
d) Has boundary lubrication Correct Answers d
a common cause of anti friction failure is
a) high RPM service
b) extreme cold temperature cracking
c) drive motor overload
d) shaft misalignment Correct Answers d
A form of lubrication that requires continual motion of a shaft or
surface
a) Fluid film lubrication
b) Forced lubrication
c) Continuous lubrication
, d) Boundary lubrication Correct Answers a
A groove that is cut in the top half in the lining of a shell bearing
should not extend closer to the ends than
a) 3 mm
b) 10 mm
c) 1.25 cm
d) 1.7 cm Correct Answers c
A journal bearing
a) controls thrust movement
b) does not require lubrication
c) require cooling water
d) supports a shaft Correct Answers d
A large journal bearing which is running hotter than normal can
be cooled by
a) direct application of cool water
b) loosening the bearing caps
c) Decreasing the viscosity of the oil by cooling it
d) pumping additional grease into it Correct Answers b
A material that is commonly used as a solid lubricant is
a) Tallow
b) Lime
c) Molybdenum Disulphide
d) Sodium Carbonate Correct Answers c
Bearings Questions With Complete Solutions
A anti-friction bearing
a) is constructed with white metal alloy
b) Wears to a smooth, low-friction surface
c) Has rolling friction
d) is a sleeve bearing
e) Tapered rollers Correct Answers c
A collar type bearing
a) Can support more load than the mitchell thrust bearing
b) Is an anti friction type bearing
c) is used with steam turbines only
d) Has boundary lubrication Correct Answers d
a common cause of anti friction failure is
a) high RPM service
b) extreme cold temperature cracking
c) drive motor overload
d) shaft misalignment Correct Answers d
A form of lubrication that requires continual motion of a shaft or
surface
a) Fluid film lubrication
b) Forced lubrication
c) Continuous lubrication
, d) Boundary lubrication Correct Answers a
A groove that is cut in the top half in the lining of a shell bearing
should not extend closer to the ends than
a) 3 mm
b) 10 mm
c) 1.25 cm
d) 1.7 cm Correct Answers c
A journal bearing
a) controls thrust movement
b) does not require lubrication
c) require cooling water
d) supports a shaft Correct Answers d
A large journal bearing which is running hotter than normal can
be cooled by
a) direct application of cool water
b) loosening the bearing caps
c) Decreasing the viscosity of the oil by cooling it
d) pumping additional grease into it Correct Answers b
A material that is commonly used as a solid lubricant is
a) Tallow
b) Lime
c) Molybdenum Disulphide
d) Sodium Carbonate Correct Answers c
