mechanical-engineering-machine-design Related Question Answers

76. The cross-section of the arm of a bell crank lever is





77. The rocker arms in internal combustion engines are of first type levers.



78. In a crossed belt drive, the shafts are arranged parallel and rotate in the same directions.



79. In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as





80. Idler pulley is used for





81. The bell crank levers used in railway signalling arrangement are of third type levers.



82. When spring index increases, the value of Wahl's stress factor





83. A shaft is subjected to a maximum bending stress of 80 N/mm2 and maximum shearing stress equal to 30 N/mm2 at a particular section. If the yield point in tension of the material is 280 N/mm2 and the maximum shear stress theory of failure is used, then the factor of safety obtained will be





84. The longitudinal stress is __________ of the circumferential stress.





85. The expression 0.175 - 0.841/T is the Lewis form factor for





86. A screw will be self locking, if





87. The maximum shear stress theory is used for





88. The elasticity is the property of a material which enables it to





89. The surface finish factor for a mirror polished material is





90. For low and moderate speed engines, the cam follower should move with





91. When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)





92. If a bearing is designated by the number 305, it means that the bearing is of





93. Tapered roller bearings can take





94. In order to remove internal stresses produced by hardening the steel, the process usually adopted is





95. A pressure vessel is said to be a thin shell, if the ratio of wall thickness to its diameter is equal to 1/10.



96. A bolt of uniform strength can be developed by





97. The ratio of endurance limit in shear to the endurance limit in flexure is





98. The lower deviation is the algebraic difference between the





99. When plates are fastened by a rivet, the holes in the plates should be made by punching and reaming.



100. When carbon in the cast iron is principally in the form of graphite, the cast iron will be of





Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use | Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions