IES Mechanical free online test series paper 1

In highly rarefied gases, the concept of this loses validity

The constant volume gas thermometer works on the principle that

There is no work transfer involved in this process

This process is one in which there is only work interaction between the system and the surroundings

In which of the following processes,the heat is fully converted into work?

An inventor states that his new conceptual engine, while operating between temperature limits of 377 °C and 27 °C, will reject 50% of heat absorbed from the source. What type of cycle will this engine have?

The continual motion of a movable device in absence of friction

For a given temperature T1 as the difference between T1 and T2 increases, the COP of a Carnot heat pump

A heat engine is supplied with 2512 kJ/min of heat at 650 °C.Heat rejection with 900 kJ/min takes place at 100 °C. This type of heat engine is

Consider the following statements for a throttling process :
1.It is an adiabatic process.
2.There is no work transfer in the process.
3.Entropy increases in throttling process.
Which of these statements are correct?

If the work done on a closed system is 20 kJ/kg, and 40 kJ/kg heat is rejected from the system, its internal energy is decreased by

A carnot heat pump is used to heat a house. The outside temperature is -3 °C and the indoor temperature is 27 °C.If the heat Loss from the
house is 40 kW, the power required to operate the heat pump is

The enthalpy drop for flow through convergent horizontal nozzles is 100 kJ/kg. If the velocity of approach at inlet to the nozzle is negligible, the exit velocity of the fluid is

By integrating Euler equation between two sections 1 and 2 for flow of an incompressible invisid fluid through a pipe, we get

For steady flow through an insulated horizontal constant diameter pipe,this property remains constant

100 kJ of energy is transferred from a heat reservoir at 1000 K to a heat reservoir at 500 K. The ambient temperature is 300 K. The loss of available energy due to heat transfer process is

When a system reaches the state of equilibrium, the following property assumes its maximum value

The difference between constant pressure specific heat Cp, and constant volume specific heat Cv, for pure substance

Joule-Thomson coefficient is the slope of

Which gas shows a heating effect in the Joule-Thomson experiment,while undergoing throttling process through a porous plug of cotton wool?