Answer / chandramauli sinha

Dry contact is volt free contact. for e.g- relay contacts .

Wet Contact is voltage at the relay contacts.

Answer / jith

dry contact is the one which doesnot have internal soure of
energy

What is open loop and close loop?

4 Answers   L&T, Pearl Distillery,

---

Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

0 Answers  

---

how to rectify the problem ,if we erected the DPT instrument wrongly of hp on lp side and lp on hp side?

5 Answers  

---

1.Give example of analog and digital signal 2. What is yhe advantage of 8086 than 8085

5 Answers   Bhel, College School Exams Tests, Profitec,

---

What is pressure,What is temperature,What is flow,What is level

4 Answers   Keltech, Petrofac,

---

What is difference of fanuc alpha series 16i and 18i controller.also what is differnce betn TC and MC controller

0 Answers  

---

admittance level sensor meaning?

2 Answers   CGL,

---

what is input and output cards of plc needs to be hot swappable mean

1 Answers  

---

What is the Difference between CNC and PLC

1 Answers  

---

Why Differential pressure transmitter is located below the tappings points for steam & condensible vapor flow measurement application?

2 Answers  

---

What is loop checking ?

10 Answers   Kharafi National, Petrofac, Samsung,

---

can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.

0 Answers  

---