BEARINGS Flashcards
A metallic or synthetic lining for a hole that reduces or prevents abrasion between components of the machine.
a. Bearing
b. Bushing
c. Gasket
d. All of the above
b. Bushing
What type of bearing must be recommended to tighten the belt tension of a bucket elevator?
a. Pillow block bearing
b. Flange bearing
c. Take-up Unit bearing
d. All of the above
c. Take-up Unit bearing
For hanger bearing of a screw conveyor, what type of bearing is recommended?
a. Ball bearing
b. Thrust bearing
c. Tapered bearing
d. Journal bearing
e. None of the above
d. Journal bearing
A type of bearing excellent for heavy radial load and moderate thrust load.
a. Tapered roller bearing
b. Spherical roller bearing
c. Ball bearing
d. None of the above
b. Spherical roller bearing
Which of the following statements is true?
a. Ball bearing operates at a higher speed limit than roller bearing.
b. Roller bearing operates at a higher speed limit than ball bearing.
c. Ball bearing operates at the same speed limit with roller bearing.
d. None of the above
a. Ball bearing operates at a higher speed limit than roller bearing.
A type of bearing with roller length at least 4 times than its diameter and is suitable for heavy load, oscillating and low speed.
a. Cylindrical roller bearing
b. Needle bearing
c. Tapered roller bearing
d. None of the above
b. Needle bearing
A machine element used to keep castellated nut from loosening.
a. Roller pin
b. Spring
c. Cotter pin
d. None of the above
c. Cotter pin
A type of bearing used to restrain endwise motion of a turning shaft or to withstand an axial load.
a. Ball bearing
b. Thrust bearing
c. Roller bearing
d. None of the above
b. Thrust bearing
The bearings used for disk plow bottom are ___.
a. tapered roller bearing
b. spherical roller bearing
c. ball bearing
d. None of the above
a. tapered roller bearing
A type of bearing suitable for heavy radial load and free from axial load.
a. Ball bearing
b. Tapered bearing
c. Cylindrical roller bearing
d. None of the above
c. Cylindrical roller bearing
A type of bearing suitable for both radial and thrust loads.
a. Ball bearing
b. Cylindrical roller bearing
c. Needle bearing
d. None of the above
a. Ball bearing
When high viscosity oil is used in the transmission box of a puddling-type tiller is high, there will be ___ in the system.
a. more heat from liquid friction produce
b. more mechanical friction will occur
c. no friction
d. None of the above
a. more heat from liquid friction produce
When low viscosity oil is used in the transmission box of a puddling type tiller, there will be ___ in the system.
a. more heat produced from liquid friction produce
b. more mechanical friction
c. no friction
d. None of the above
b. more mechanical friction
If the shaft rpm in a transmission box is increase, the coefficient of friction of fluid will ______ .
a. remains the same
b. decrease
c. increase
d. None of the above
c. increase
When designing an axle of a rice thresher, low friction can be attained by making the components to _____ with each other.
a. roll
b. slide
c. skid
d. None of the above
a. roll
The higher the viscosity of a fluid, the ____ is the energy is required to slide the surfaces at a given speed and gap.
a. lesser
b. greater
c. None of the above
b. greater
Lubricants viscosity basically ____ with the increase in temperature.
a. Increases
b. decreases
c. do not change
d. None of the above
b. decreases
It is a measure of an oil viscosity-temperature behavior.
a. Oil Index
b. Viscosity Index
c. V/T Index
d. None of the above
b. Viscosity Index
Viscosity index of SAE 10W-30 oil.
a. 100 V.I.
b. 120 V.I.
c. 140 V.I.
d. None of the above
c. 140 V.I.
Viscosity Index of SAE 10W oil.
a. 100 V.I.
b. 120 V.I.
c. 140 V.I.
d. None of the above
a. 100 V.I.
Multi-grade oils have ___ VI than single grade oil, i.e. the viscosity changes less with temperature.
a. lower
b. middle
c. higher
d. None of the above
c. higher
Basically, oil viscosity ____ with pressure.
a. increases dramatically
b. decreases dramatically
c. do not change
d. None of the above
a. increases dramatically