Answer / abi_rox

In Induced draught cooling tower, the circulation of air is provided by means of ID fans (straight blades) placed at the top of the tower.

In a natural draught cooling tower, the circulation of air is produced by the pressure difference of air inside and outside the cooling tower.

Answer / praveen k r

Natural Indused
1.Air flow is natural 1.Cooling through by fan
2.Pwer only for water pump 2.Power for fan also
3.Less maintanence 3.Regular maintanenece
4.Operating on very low water load 4.High load

please send previous year que. paper of je mech rrb.

0 Answers  

---

What is the percentage of carbon in cast iron ?

0 Answers  

---

how to calculate the speed of conveyer in meter per minute

3 Answers  

---

Explain why is thick steel wire stronger than thin steel wire?

1 Answers  

---

Greetings This question is about hydraulics and I request an expert to answer it. A simple hydraulic machine is made up of two heads, a larger one with a larger force inside a wider pipe and a smaller one with a smaller force inside a smaller pipe in width as in the second picture on this link: http://science.howstuffworks.com/hydraulic1.htm The question is this: what happens if the smaller head and the smaller force doesn’t exist but the smaller pipe is high enough to take all the liquid? For example the larger head is 1.00 sqr metre and can go down 1.00m under a weight of 100.00kg. The cross sectional area of the smaller pipe is 0.001 sqr metre. Now when the larger head goes down 1.00m, how high the liquid from the wider pipe can go into the smaller pipe of the cross sectional area of 0.001 sqr metre? Regards

0 Answers  

---

What is the relation between the thickness of the thermal boundary layer and the depth of the hydrodynamic boundary layer?

0 Answers  

---

What is the other name of micrometer & vernier calliper

3 Answers  

---

How to shut down and overhaul the centrifugal pumps?

0 Answers   RRB,

---

Mention two types of dislocations.

0 Answers  

---

Why tyres are manufactured in black colour?

22 Answers   MRF, TVS,

---

Give five differences between suction and discharge pipes?

0 Answers   Unitech,

---

What causes hardness in steel ? How heat treatment alters properties of steel ?

0 Answers  

---