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You Are On Multi Choice Question Bank SET 1458

72901. Lewis equation in gears is used to find the





72902. In order to determine the stresses in a thin cylinder due to an internal pressure, it is assumed that





72903. All stresses produced in a belt are





72904. An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by





72905. The ratio of driving tensions in V-belt drives is __________ flat belt drives.





72906. A shaft is designed on the basis of rigidity and stiffness.



72907. Which of the following spring is used in mechanical wrist watch?





72908. In helical bevel gearing, the axes of shafts are __________ and the teeth are curved.



72909. Which of the following has threads at both ends?





72910. The ratio of the ultimate stress to the design stress is known as





72911. According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by





72912. The cam follower extensively used in air-craft engines is





72913. The minor diameter of a screw thread is also known as outside or nominal diameter.



72914. A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is





72915. The radial stress across the thickness of a thick cylinder is maximum at the inner surface and zero at the outer surface.



72916. The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.




72917. The resilience of a bolt may be increased by





72918. In worm, gears, pitch lead angle is





72919. The effective stress in wire ropes during normal working is equal to the stress due to





72920. When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a





72921. A connecting rod should be





72922. According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be





72923. When two non-parallel or intersecting but coplaner shafts are connected by gears, the arrangement is known as bevel gearing.



72924. According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as





72925. Victory Medal is the highest military award of?





72926. Mao-Ise Tung died in?





72927. In designing a connecting rod, it is considered like __________ for buckling about Y-axis.





72928. A steel containing __________ 0.8% carbon is known as hypo-eutectoid steel.




72929. When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the





72930. Which one of the following loading is considered for the design of axles?





72931. The shear stress in a beam varies from zero at the outer fibres to a maximum at the neutral surface.



72932. A basic hole is one whose





72933. In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.





72934. A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as hollow saddle key.



72935. In levers, leverage is the ratio of





72936. The diameter of washer is generally taken bigger than the nut size.



72937. The element nickel is a?





72938. If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?





72939. What is the literary meaning of Karate?





72940. In block brakes, the ratio of shoe width to wheel diameter is taken between





72941. Oldham coupling is used to transmit power between two parallel shafts which are slightly offset.



72942. A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is





72943. When a machine member is subjected to torsion, the torsional shear stress set up in the member is





72944. Pitch point of a cam is





72945. When two parallel and coplaner shafts are connected by gears having teeth parallel to the axis of the shaft, the arrangement is known as spiral gearing.



72946. A screw is specified by its





72947. The wear load should be __________ the dynamic load.




72948. The value of which of the following foreign currencies is maximum in terms of rupees?





72949. Antifriction bearings are





72950. Stress concentration factor is defined as the ratio of





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