Engineering Mechanics The static friction Always acts in a direction, opposite to that in which the body tends to move Bears a constant ratio to the normal reaction between the two surfaces Is independent of the area of contact, between the two surfaces All of these Always acts in a direction, opposite to that in which the body tends to move Bears a constant ratio to the normal reaction between the two surfaces Is independent of the area of contact, between the two surfaces All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a single purchase crab winch can be increased by All of these Increasing the length of the handle Increasing the number of teeth of the pinion Increasing the radius of the load drum All of these Increasing the length of the handle Increasing the number of teeth of the pinion Increasing the radius of the load drum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The algebraic sum of moments of the forces forming couple about any point in their plane is Equal to the moment of the couple Constant Both of above are correct Both of above are wrong Equal to the moment of the couple Constant Both of above are correct Both of above are wrong ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A smooth cylinder lying on a __________ is in neutral equilibrium. Curved surface None of these Horizontal surface Convex surface Curved surface None of these Horizontal surface Convex surface ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction. Increase None of these Decrease Not be effected Increase None of these Decrease Not be effected ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h) None of these Less than Equal to Greater than None of these Less than Equal to Greater than ANSWER DOWNLOAD EXAMIANS APP
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