in a centrifugal pump .. when we close the delivery valve partially .. does this increase the pressure before or after the valve .. and why ??

1 Answers  

---

when do we use roller bearing, deep groove ball bearing, angular bearing, sealed bearing, semi sealed bearing, unsealed bearing, anti friction bearing, journal bearing, thrust bearing

0 Answers  

---

what is air standard efficiency of a cycle?

2 Answers  

---

In case of AHU ,how to arrive at chilled water USGPM of the AHU in case the AHU CFM is given. Can some HVAC genius please advise.

3 Answers   SR,

---

What is the full for of HRC

8 Answers  

---

What are to be checked in an induction motor?

0 Answers   RRB,

---

Where use 6 stroke engine

1 Answers   John Energy,

---

effect of temperature on stainless steel at temp(500C-750C) in respect of the following properties-required for silencer application 1.thermal conductivity 2.heat conduction 3.mechanical strength 4.temperature to weight ratio with values

0 Answers  

---

What will happened if two gear boxes in parallel are working with different motor speeds?

1 Answers   Lloyds Steel,

---

sirplz send me nhpc techanical questions paper.

0 Answers   NHPC,

---

What is difference between AHX AND AH when referred to Withdrawal sleeves ?. Can we use AHX withdrawal sleeve with CK bearings ?

1 Answers  

---

The range of mechanical efficiency for automobile engines is.................... A.70-80% B.90-100%

2 Answers  

---