Define what are the properties and application of manganese steel?

682

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

1836

What is resonant frequency?

702

im ece student.im applyng 4 rrb junior engineer (electrical) i got hallticket....plz...try to send the syllabus of junior engineer(electrical)

2405

After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.

1479

in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter

1696

how to make resume and what should I include in it?

1755

What is the difference between one-way slab and two-way slab?

662

Which type of motor is used in trains, what is the rating of supply used explain working principal?

778

my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs

1272

What pressure is highest L.O. Gravity Head or S.W. of the stern tube circulation

1565

Explain Chickan works

5

1.How much batten required for 1 sqm Shuttering. 2.how much pipe & clamps required for staging of 100 sqm shuttering at 5.0 m height.

1777

What is the wet bulb globe temperature?

627

I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

1910