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You Are On Multi Choice Question Bank SET 1461

73051. A bolt of M 24 x 2 means that





73052. In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)





73053. In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle.




73054. While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as





73055. When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is





73056. In a journal bearing, the load on the bearing is __________ to the axis of the journal.



73057. An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called





73058. When the frictional force helps to apply the brake, then the brake is said to be self-energizing brake.



73059. Multiple threads are used to secure





73060. The fatigue limit of a material is greatly decreased by poor surface conditions.



73061. The value of Lewis form factor used in design of gears is





73062. The maximum bending stress in a curved beam having symmetrical section always occur at the





73063. In radial bearings, the load acts __________ to the axis of rotation.



73064. In a marine flange coupling, the pitch circle diameter of bolts is taken as





73065. When compared to the rod of the same diameter and material, a wire rope





73066. According to Indian standards, total number of fundamental deviations are





73067. In the calculation of induced shear stress in helical springs, the Wahl's stress factor is used to take care of





73068. In case of thick cylinders, the tangential stress across the thickness of cylinder is





73069. The cam follower generally used in automobile engines is





73070. A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ . The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be





73071. The malleable material should be plastic but is not essential to be so strong.



73072. The temperature at which the new grains are formed in the metal is known as





73073. Deep groove ball bearings are used for





73074. The shear modulus of resilience is proportional to





73075. In a sawn nut, a slot is cut about half way through the nut and a small screw is tightened between the nut and the bolt in order to produce more friction.



73076. In a butt welded joint, the size of weld is __________ the throat of weld.





73077. Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?





73078. Which of the following cotter joint will be used to connect strap end of a connecting rod ?





73079. When the screw in a mechanical screw jack rotates, the load kept on the top of it moves





73080. Which of the following bearing is preferred for oscillating conditions?





73081. In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders normal to the teeth, is called





73082. The longitudinal joint in boilers is used to get the required





73083. The Lewis equation for gear tooth with involute profile predicts the static load capacity of cantilever beam of uniform strength.



73084. A basic shaft is one whose





73085. When the effort is in between the fulcrum and load, the lever is said to be of third type.



73086. Which of the following statement is wrong for a connecting rod ?





73087. The most important dimension in the design of a nut is





73088. Factor of safety for fatigue loading is the ratio of




73089. The shafts of larger diameter are usually forged and turned to size in a lathe.



73090. When the pulley or other mating piece is required to slide along the shaft, a __________ sunk key is used.




73091. In a flange coupling, the bolts are subjected to





73092. The radial distance from the top of a tooth to the bottom of a tooth is called clearance



73093. A key made from a cylindrical disc having segmental cross-section, is known as





73094. The helix angle for double helical gears may be made up to





73095. The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the pitch curve.



73096. A fast and loose pulley drive is used when





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