Engineering Mechanics A screw jack used for lifting the loads is A non-reversible machine A reversible machine An ideal machine None of these A non-reversible machine A reversible machine An ideal machine None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of 2 m 1 m 4 m 3 m 2 m 1 m 4 m 3 m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that tanθ = √(ΣV + ΣH) tanθ = ΣV/ΣH tanθ = ΣV × ΣH tanθ = ΣH/ΣV tanθ = √(ΣV + ΣH) tanθ = ΣV/ΣH tanθ = ΣV × ΣH tanθ = ΣH/ΣV ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following: None of these The change in momentum suffered by rubber ball is less than the lead ball The change in momentum suffered by rubber ball is more than the lead ball Both the balls undergo an equal change in momentum None of these The change in momentum suffered by rubber ball is less than the lead ball The change in momentum suffered by rubber ball is more than the lead ball Both the balls undergo an equal change in momentum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Which of the following statement is correct in connection with projectiles? The angle, with the horizontal, at which a projectile is projected, is known as angle of projection. The velocity, with which a projectile is projected, is known as the velocity of projection. All of these A path, traced by a projectile in the space, is known as trajectory. The angle, with the horizontal, at which a projectile is projected, is known as angle of projection. The velocity, with which a projectile is projected, is known as the velocity of projection. All of these A path, traced by a projectile in the space, is known as trajectory. ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of gravity of a uniform lamina lies at The midpoint of its axis All of these The bottom surface The centre of heavy portion The midpoint of its axis All of these The bottom surface The centre of heavy portion ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS