A. directly as load
B. inversely as square of load
C. inversely as cube of load
D. inversely as fourth power of load
E. none of the above
Related Mcqs:
- 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. ZN/p
B. p/ZN
C. Z/pN
D. N/Zp
E. Zp/N - Ball bearing type screws are found in following application_____________________?
A. screw jack
B. aeroplane engines
C. crane
D. steering mechanism
E. bench vice - The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is___________________?
A. 0.01 micron
B. 0.1 micron
C. 1 micron
D. 10 microns
E. 25 microns - Oil in journal bearing should be applied at the point where load is________________?
A. nil or lightest
B. maximum
C. average
D. any one of the above
E. unpredictable - The fatigue life of a part can be improved by_____________________?
A. electroplating
B. polishing
C. coating
D. shot peening
E. heat treating - The endurance limit of a material with finished surface in comparison to rough surface is_________________?
A. more
B. less
C. same
D. more or less depending on quantum of load
E. unpredictable - Which is correct statement ?
A. a member made of steel will generally be more rigid than a member of equal load-carrying ability made of cast iron
B. a member made of cast iron will generally be. more rigid than a member of equal load carrying ability made of steel
C. both will be equally rigid
D. which one is rigid will depend on several other factors
E. none of the above - If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation_______________?
A. 102 d
B. 124 d
C. 138 d
D. 151 d
E. 168 d - When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at_______________?
A. shank
B. head
C. in the middle
D. at the thread
E. anywhere in the bolt - If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to___________________?
A. 0.2
B. 0.25
C. 0.50
D. 0.6
E. 0.75
