Two Wire Transmitters multiple choice questions

 Two Wire Transmitters

1. The remote mounting feature of two-wire transmitter near the sensor reduces the effects of _________
a) Noise
b) Signal Degradation
c) Both a & b
d) None of the above
Answer: Both a & b
2. Why is an ac power not required in the remote areas or locations for operation purpose of two-wire transmitter?
a) transmission power is lowered upto 4-20mA current output signal
b) transmission power is lowered upto 1-4 mA current output signal
c) transmission power is lowered upto 1-10 mA current output signal
d) two-wire transmitters do not operate in remote areas
Answer: transmission power is lowered upto 4-20mA current output signal
3. How does the appearance of any noise rather than the electrical noise that intrude in the current output signal of two-wire transmitter get eliminated ?
a) by common-mode rejection of transmitting device
b) by common-mode rejection of interfacing device
c) by common-mode rejection of receiving device
d) none of the above
Answer: by common-mode rejection of receiving device
4. Which type of transmitter is loop supplied?
a) 2-wire transmitter
b) 3-wire transmitter
c) 4-wire transmitter
d) None of the above
Answer: 2-wire transmitter