what will be the angular speed of a model of turbine whose dia is half of the real one and operating in 1/4 th of the head of the real turbine rotating in Nrpm.

0 Answers   Bhel,

---

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  

---

1: When mesuring the flow of liquid what are the two things to measure? 2: In which industrial process you will use centrifugal separator? 3: If any machinery or transmission needs periodic and regular lubrication what is the best method to give it? 4: Oil melts, grease melts. Is there any other lubrication which is effect at 200 deg c? 5: What is a torque converter? 6: Instead of having individual transmission what is the benefit of unified transmission? 7: What are the different types of mechanism to engage primary moving engine and transmission (in other words how many different types of clutches are there)? 8: In order to ensure constant pressure and constant flow rate of compressed air what should we put between the compressor and end user? 9: What can be the reasons for a metal gasket to leak? 10: The old welding machines used electromagnetic winding to step up the current for welding rods. What is the new principle inside the welding machines?

0 Answers   Petrotech,

---

Which type of impeller has highest speed Backward, Forward ,Straight?

5 Answers   Bhel, NHPC, NTPC,

---

What type of beari ng u will prefer for automobile?

2 Answers   L&T, TVS,

---

sir, please send previous years RRB junior engineer (mechanical) exam papers

0 Answers  

---

rrbchennaimodel question paper for current papers

0 Answers  

---

what is punching force required for embossing of depth 3.5mm and diameter 58mm

0 Answers   Omkar Solar System,

---

difference between stress and pressure?

3 Answers  

---

funtion of leaf spring

1 Answers   Quest, SA, Vijay Industries, VV,

---

why we use charcoal layer in aqua silencer to purify the gases??

1 Answers  

---

How do I calculate 2% Butane in 29.66 CFM?

0 Answers  

---