4 point starter

Its an exam question

A 4-point starter is used to start and control speed of

a)dc shunt motor with armature resistance control

b)dc shunt motor with field weakening control

c)dc series motor

d)dc compound motor

Turn Table with Pneumatic Vibration

i has a problem about turn table.... right now,that turn able was at site...the problem is that turn table take a pallet....and when the pneumatic extract or in,turn table has a vibration that no need it..... turn table was rotate in 90 degree....kindly hope someone can help me....ASAP....

Vacuum Control

just put 4.2 v6 in 1998 f150 on the back of the lower intake there is two controls on the lower intake for the butterfly inside the intake . I have no vacum at these two switches

Linearly Independent Proof

Need help with finishing this proof.

Question

Let {x1 , . . . , xk} be a linearly independent finite set in a normed linear space. Show that there exists delta > 0 such that the condition

max||xi-yi||<delta ,1<=i<=k

implies that {y1 , . . . , yk} is al

Three Phase Generator Winding Got Burned

hi gents,

would you please help me with an explaination for this:

its an old three phase 25kva 415v 35amps 50hz brush type ac generator, the three phase winding are placed on the rotor and we get the main power from qty#4 brushes, 3phase+ neutral.

its regulator is not ele

Texting While Driving

after reading the post about bicycle licensing i got to thinking about some of the other laws that have been passed supposedly for our protection but seem more like ways for politicians to raise revenue. i have oftened wondered if when radios were first placed in cars if someone tried to say that it

4-20 mA For 500 Meter Distance

Dear All,

We have 3 loops in our existing mill with distances of 500 meters from transmitters to marshalling cabinets of DCS carrying 4-20 mA. We have now modification project, can we use the same distance or we should have some remote I/Os in the field.

Best Regards,