Engineering Mechanics Center of gravity of a thin hollow cone lies on the axis at a height of One-fourth of the total height above base One-third of the total height above base One-half of the total height above base Three-eighth of the total height above the base One-fourth of the total height above base One-third of the total height above base One-half of the total height above base Three-eighth of the total height above the base ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The angular velocity (in rad/s) of a body rotating at N revolutions per minute is πN/60 2πN/180 2πN/60 πN/180 πN/60 2πN/180 2πN/60 πN/180 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the gravitational acceleration at any place is doubled, then the weight of a body will be 2g g/2 √2.g g 2g g/2 √2.g g ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by (v₁ - v₂)/(u₁ - u₂) (v₂ - v₁)/(u₁ - u₂) (u₁ - u₂)/(v₁ - v₂) (u₂ + u₁)/(v₂ + v₁) (v₁ - v₂)/(u₁ - u₂) (v₂ - v₁)/(u₁ - u₂) (u₁ - u₂)/(v₁ - v₂) (u₂ + u₁)/(v₂ + v₁) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration. Downwards Horizontal None of these Upwards Downwards Horizontal None of these Upwards ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum efficiency of a lifting machine is 1/(m × V.R.) 1/m V.R./m m/V.R. 1/(m × V.R.) 1/m V.R./m m/V.R. ANSWER DOWNLOAD EXAMIANS APP
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