Answer / mariappan.v

Single acting actuator is used for only one operation such
as loading the componenet only, un loading is done by
another way,but double acting actuator is used for both
loading and unloading purpose


SINGLE..........ONLY ONE OPERATION
DOUBLE...........MORE THAN ONE OPERATION (TWO)

I have applied for rrb ,for the post of JE (mechanical),So please send me the solved Question papers for the past four years RRB EXAM's as soon as posible.

1 Answers  

---

how can i access syllabus of different psu.plZ help me

0 Answers  

---

if in a centrifugal pump suction, discharge ,& impeller size constant & motor rpm increases . What is the effect on pressure and flow ?

3 Answers  

---

how i can calculte the lenght of a ring dia 27 mm.

5 Answers   TATA, WWE,

---

When repacking a valve the rings of packing should be oriented so that the packing ends are installed ____________.

0 Answers  

---

What are the basis on which the best material for sliding contact bearings manufacturing?

0 Answers  

---

What is the melting teparature of the boiler fusible plug? Which is the metal used for boiler manufacturing?

3 Answers   Greenergy Solutions, Nestle,

---

At 50 Centigrade (Diesel oil) what is its cast?

0 Answers  

---

DENSITY OF AIR AT 300 DEGREE CENTRIGRADE

2 Answers  

---

Why must we pay attention when we drain steam in steam turbine. What factors are observed?

0 Answers   ABC Inc, RRB, Siemens,

---

a partical throw a 30 meter hieght after 2 sec another particle thwough same velocity & mass . what is the place they are meet each other in space.

2 Answers  

---

Why should a chain drive be used over a belt or rope driven drive? State pro`s and con`s?

0 Answers  

---