Related Questions

In a partial journal bearing, the angle of contact of the bearing with the journal is
A 120°
B 180°
C 270°
D 360°
In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing
A Remains constant at all speeds
B Is minimum at zero speed and increases monotonically with increase in speed
C Is maximum at zero speed and decreases monotonically with increase in speed
D Becomes minimum at an optimum speed and then increases with further increase in speed
In a journal bearing, the load on the bearing is __________ to the axis of the journal.
A Parallel
B Perpendicular
C Both A and B
D None of these
Pharmacists recently conducted a study with respect to the reasons their customers purchased eye drops to soothe eye dryness. Dry eyes were more frequently experienced by customers who wore contact lenses than by custorners who did not wear contact lenses. The pharmacists concluded that wearing contact lenses, by itself, can cause contact wearers to have dry eyes.
A An inherited condition can cause both weak eyesight and dry eyes
B Physical exertion causes dry eyes in many people who wear contact lenses.
C Most people who have dry eyes do not wear contact lenses.
D Most people who wear contact lenses do not have dry eyes.
If p = bearing pressure on projected bearing area, Z = absolute viscosity of lubricant and N = speed of journal, then the bearing characteristic number is given by
A $$\frac{{{\text{ZN}}}}{{\text{p}}}$$
B $$\frac{{\text{p}}}{{{\text{ZN}}}}$$
C $$\frac{{\text{Z}}}{{{\text{pN}}}}$$
D $$\frac{{\text{N}}}{{{\text{Zp}}}}$$
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a
A Short bearing
B Long bearing
C Medium bearing
D Square bearing
In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing.
A Thick film
B Thin film
C Either A or B
D None of these
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called
A Hydrostatic lubricated bearing
B Hydrodynamic lubricated bearing
C Boundary lubricated bearing
D Zero film bearing
Which of the following is a type of cash receipt journal + cash payment journal?
A Bank statement
B Statement of cash flow
C Cash book
D Cash documents
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.
A Partially
B Fully
C Either A or B
D None of these

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