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Carnot cycle is a reversible cycle and ideal in nature.
As Carnot cycle is an ideal cycle, so the working fluid is an ideal gas.
Two reversible isotherms and two reversible adiabatics constitute a Carnot cycle.

The isothermal process of a carnot cycle needs very slow motion of the piston to maintain constant temperature while the adiabatic process needs very fast motion to complete the adiabatic process.

A crowned pulley is used to increase the stability of the belt on the pulley and to run at the center of the pulley without slipping off from the edges.

According to the Indian Electrical rules standards the maximum allowable power in a lighting sub circuit is 800 watts or 10 points. Both the conditions could not be exceeded.

In a parallel combination as shown in the diagram the voltage across each branch will be the same. i.e., in this case across all the three branches the voltage will be equal to V volt.

JFET or Junction Field Effect Transistor is one of the simplest types of field-effect transistor.
JFETs are voltage-controlled devices.
In JFET, the current flow is due to the majority of charge carriers.
By applying a reverse bias voltage to a gate terminal, the channel is “pinched”, so that the electric current is impeded or switched off completely. Thus input impedance becomes high.

The compression ratio in I.C. engine is directly proportional to the thermal efficiency, so as it increases, then its thermal efficiency will increase.

Hooke’s Joint is used to transmit rotary motion from one shaft to another when they are not coaxial ie, when their axes are inclined to each other. One very famous application of the Hooke’s Joint is in automobiles where it is used to connect propellar shaft that transmit the power from the gearbox to the differential.

The Nusselt number in natural convection is a function of Prandtl number and Grashoff number

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