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Day 14 - Mechanics
Quiz by Technos Technical Coaching
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50 questions
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- Q1Mechanical advantageW/PP/WP x WNone of these40s
- Q2A fly wheel serves as a reservoir and restore energy by virtue of itsRotationInertiaMomentumWeight40s
- Q3The material which have the same elastic oproperties in all direction are calledHard materialHomogeneous materialIsotropic MaterialBrittle material40s
- Q4Torque isPulling forceTwisting forceCompressive forceNone of these40s
- Q5At ground level the potential energy of a body isInfinityNone of theseZerominimum40s
- Q6Modulus of rigidity is defined asNone of theseShear strain / shear stressNormal stress / shear strainShear stress/shear strain40s
- Q7If the efficiency of a lifting machine is kept constant the vekocity ratio is directly proportional to itsMachine frictionAll of theseEffort appliedMechanical advantage40s
- Q8The energy possessed by a liquid particle by virtue of its position is calledMechanical enegyPotential energyKinetic energyPressure energy40s
- Q9Centre of gravity of hemisphere from the base is2/3r2/8r4/8r3/8r40s
- Q10The rate of change of position of particle is calledDisplacement of particleAcceleration of particleSpeed of particleVelocity of particle40s
- Q11Joule is the unit ofPowerEnergyForceNone of these40s
- Q12The force of buoyancy is …...the weight oif the liquid displaced by the bodyLess thanMore thanEqual toNone of these40s
- Q13Mathematically weight of a body isMass x accelerationMass x acceleration due to gravityMass x velocityInertia x momentum40s
- Q14Acceleration of a particle isthe rate of change of velocityThe relative velocity of particleResultant velocity of the particleRectilinear motion of the particle40s
- Q15The friction experienced by a body when it is in motion is calledStatic frictionRolling frictionLimiting frictionDynamic friction40s