Engineering Mechanics In actual machines, mechanical advantage is _________ velocity ratio. Less than Equal to None of these Greater than Less than Equal to None of these Greater than ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A machine having an efficiency less than 50%, is known as Non-reversible machine Ideal machine Neither reversible nor non-reversible machine Reversible machine Non-reversible machine Ideal machine Neither reversible nor non-reversible machine Reversible machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by 2P sinθ/2 2P tanθ/2 2P cotθ/2 2P cosθ/2 2P sinθ/2 2P tanθ/2 2P cotθ/2 2P cosθ/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics An ideal machine is one whose efficiency is 1 Between 70 and 80% Between 60 and 70 % Between 80 and 90% 1 Between 70 and 80% Between 60 and 70 % Between 80 and 90% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body. Change None of these Does not change Changes periodically Change None of these Does not change Changes periodically ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span 2.5 cm 4.0 cm 5.0 cm 3.0 cm 2.5 cm 4.0 cm 5.0 cm 3.0 cm ANSWER DOWNLOAD EXAMIANS APP
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