Related Questions

A Carnot heat engine receives heat at 750 K and rejects the waste heat to the environment at 300 K. The net work output of the heat engine is used to drive a Carnot refrigerator, whose COP is 6.14. If the heat removal rate from the refrigerated space is 6.6 kW, determine the rate of heat supply to the heat engine?
If 'blue' means 'green', green' means 'yellow' 'yellow' means 'orange', 'orange' means 'black', 'black' means 'white', 'white' means 'red', 'red' means 'pink', 'pink' means 'brown', 'brown' means 'grey', than what is the color of human blood?
A system undergoing change in state from A to B along path ‘X’ receives 100 J heat and does 40 J work. It returns to state A from B along path ‘Y’ with work input of 30 J. Calculate the heat transfer involved along the path ‘Y’.
Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow and k = Thermal conductivity of the body)
Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statement : The district administration has issued a circular to all the farmers under its jurisdiction advising them for not using pesticides indiscriminately as it may pollute the ground water.

Assumptions :
I. People may stop using ground water if the farmers continue to use pesticides indiscriminately.
II. Farmers may refrain from using pesticides indiscriminately.
Statement : Major part of the rabi crop in the district is damaged due to unseasonal heavy rains during the last few days.

Courses of Action :
I. The government should grant relief to the affected farmers to compensate their loss.
II. The government should provide free seed and fertilizer to the farmers for the kharif season.
III. The government should waive all the loans taken for the rabi crop by the affected farmers.
Statement : The kharif crops have been affected by the insects for consecutive three years in the district and the farmers harvested less than fifty percent of produce during these years.

Courses of Action :
I. The farmers should seek measures to control the attack of insects to protect their crops next year.
II. The Government should increase the support price of kharif crops considerably to protect the economic interests of farmers.
S1: This is the story of a tram that woke up at dead of night and went off on a trip all by itself to end in a disaster.
P: In the early morning of 19 January it suddenly started backing out of the depot on its own.
Q: Tramways sources explained that power supply to the overhead wires at the siding had been switched off for some repair work.
R: It went up a quarter mile away, crashed into state bus which caught fire went it smashed into an electric feeder box and a water tap.
S: There was presumably, some defect in the reversal handle of the tram and its main switch had not been put off.
S6: As a result, when the power supply was restored in the early morning the tram began to move.

The Proper sequence should be:
A and B together can do a piece of work in 10 days. If A can do the work in 15 days, find in how many days that B alone can do the same work. Given below are the steps involved in solving the above problem. Arrange them in sequential order. A) One day's work of B is 1/10 - 1/15 B) One day's work of A and B is 1/10 and One day's work of A is 1/15 C) B alone can do the work in 30 days D) One day's work of B is 1/30
Choose the word/phrase that best retains the meaning o f the underlined word/phrase in the given sentence: Despite being a brilliant scientist, he does not seem to "get his ideas across".