The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force. Greater than Less than None of these Equal to TRUE ANSWER : ? YOUR ANSWER : ?
A redundant frame is also called __________ frame. Deficient None of these Imperfect Perfect TRUE ANSWER : ? YOUR ANSWER : ?
An ideal machine is one whose efficiency is Between 70 and 80% Between 80 and 90% 1 Between 60 and 70 % TRUE ANSWER : ? YOUR ANSWER : ?
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 = ΣH/ΣV tanθ = ΣV/ΣH tanθ = ΣV × ΣH TRUE ANSWER : ? YOUR ANSWER : ?
The process of finding out the resultant force is called __________ of forces. Resolution None of these Composition Decomposition TRUE ANSWER : ? YOUR ANSWER : ?
Work done is said to be zero, when Some force acts on a body, but displacement is zero No force acts on a body but some displacement takes place Either (A) or (B) None of these TRUE ANSWER : ? YOUR ANSWER : ?
The maximum efficiency of a lifting machine is m/V.R. 1/(m × V.R.) V.R./m 1/m TRUE ANSWER : ? YOUR ANSWER : ?
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point Four times Same as Twice Thrice TRUE ANSWER : ? YOUR ANSWER : ?
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position. None of these Maximum Zero Minimum TRUE ANSWER : ? YOUR ANSWER : ?
The loss of kinetic energy during inelastic impact, is given by (where m1 = Mass of the first body,m2 = Mass of the second body, and u1 and u2 = Velocities of the first and second bodies respectively.) [2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)² [m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)² [m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²) [2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²) TRUE ANSWER : ? YOUR ANSWER : ?