Home

What is the correct answer?

4

A machine having an efficiency greater than 50%, is known as

A. Reversible machine

B. Non-reversible machine

C. Neither reversible nor non-reversible machine

D. Ideal machine

Correct Answer :

A. Reversible machine


Related Questions

Pick up wrong statement about friction force for dry surfaces. Friction… The unit of moment of inertia of an area is Which of the following is not the unit of distance? When two elastic bodies collide with each other, One kg force is equal to The bodies which rebound after impact are called Two non-collinear parallel equal forces acting in opposite direction Three forces acting on a rigid body are represented in magnitude, direction… In ideal machines The M.I. of hollow circular section about a central axis perpendicular… If the masses of both the bodies, as shown in the below figure, are doubled,… Two forces are acting at an angle of 120°. The bigger force is 40… The unit of angular acceleration is Which of the following are vector quantities? In a screw jack, the effort required to lower the load is __________ the… If three forces acting in different planes can be represented by a triangle,… The point, through which the whole weight of the body acts, irrespective… The rate of change of momentum is directly proportional to the impressed… The velocity of a particle (v) moving with simple harmonic motion, at… The centre of gravity a T-section 100 mm × 150 mm × 50 mm… If P is the force acting on the body, m is the mass of the body and a… A spherical body is symmetrical about its perpendicular axis. According… Which of the following is a scalar quantity? The forces which meet at one point, but their lines of action __________… The impact between two lead spheres is approximately equal to an __________… The process of finding out the resultant force is called __________ of… Coplanar non-concurrent forces are those forces which __________ at one… The principle of transmissibility of forces states that, when a force… The necessary condition for forces to be in equilibrium is that these… One joule means that