What is the load stress factor for cast iron gear pair if BHN = 300?

What is the function of a moderator?

One ton of refrigeration is equal to ______

 Which of the following protects penstock due to sudden variation of flow or velocity of water?

Pump transfers input mechanical energy of an engine, into ______

Thermal efficiency of S.I. engines is low, due to ____

Which of the following relations is true, for coefficient of performance (C.O.P)?

According to Kelvin-Planck statement, it is impossible to construct a device operating on a cycle which transfers heat from ____

   According to Joule's law, the internal energy of a perfect gas is the function of absolute ______

Which of the following relations depict relation between Celsius and Fahrenheit scale?

The radiation pyrometers work on the principle of ______
 

a. Newton's law

b. Stefan Boltzmann's law

c. Zeroth law

d. None of the above