Two-wire Transmitter - MCQs with answers

Two-wire Transmitter - MCQs with answers

1. 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

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2. 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

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3. 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

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