Answer / manish

Grease is a semisolid lubricants obtained from crude oil
.Grease consisting of a soap emulsified with mineral or
vegetable oil thats why it is able to retain its properties
for a long long time

Answer / alok

Grease is a oil substance extracted from mostly crude oil
coming in processing plants.
It is chemically mixed with some other chemicals and hence it
achieves it consistency,viscosity and properties.

1. Mass of water is 100 lit. & Its initial temperature is 40ºC. Find the capacity of refrigerating machine (Ton of refrigeration) when it is converted in to 0 ºC ice, within 2 hours.

1 Answers  

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How much steam is to be required for generation of 1MW electricty?

6 Answers   Ennore Coke, Uttam Galva,

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Steam is a vapour or a gas ?

7 Answers   BDL,

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2. Dry saturated steam at 3.5 bar is expanded through a convergent nozzle to 2.2 bar. The exit area is 5 sq. cm. Calculate the exit velocity and mass flow rate, assuming isentropic expansion and super saturated flow. b) A cast iron cylinder head is fastened to a cylinder of 750mm bore with 12 stud bolts. The maximum pressure inside the cylinder is 3 Mpa. The stiffness of part is thrice the stiffness of the bolt. What should be the initial tightening load so that the point is leak proof at maximum pressure? Also choose a suitable bolt for the above application 2 The propeller shaft of a marine engine is to transmit 600 kW at 1200 rpm, without a significant bending. The efficiency of the propeller is 88% at 32 knots ( 1 knot = 1085 km/hr). If the slenderness ratio is less than 50 and the permissible shear stress should not exceed 65 Mpa. Determine the diameter of shaft. 3 A semi-elliptic leaf spring consists of two extra full-length leaves and six graduated length leaves, including the master leaf. Each leaf is 7.2 mm thick and 65 mm wide. The centre-to-centre distance between the two eyes is 1.3m. The leaves are pre-stressed in such a way that when the load is maximum, stress induced in all leaves are equal to 380 N/mm sq. Determine the maximum force that the spring can withstand

0 Answers  

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Name two vital conditions of a perfect gas.

0 Answers  

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i want to know the difference between proportional hydraulic valve & servo hydraulic valve

0 Answers  

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I am a technical graduate with 2 years of experience in automobile industry. i want to prepare for air force technical level examination. will u pls tell me what is the syllabus or do u have some model question papers???

0 Answers  

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What is isometric drawing?

0 Answers  

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How much resistance is offered to heat flow by drop wise condensation ?

0 Answers  

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I have a thermal flask in which i have to fill the boiled water. I also have thermocol, saw dust and silver paper. Now tell me how i have to arrange these material to attain minimum heat loss.

7 Answers  

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What Equilibrium?

3 Answers   SVNIT,

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What does a pump develops? Flow or Pressure. Give the Answer with Proper Logic.

3 Answers   DVC,

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