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If the potential difference across the coil is low, the coil will:
A-draw too much current
B-become too hot
C-Produce too much magnetic force
D-not heat up - ANSWER-D-not heat up
The outputs of a digital transducer are in the form of:
a. 1 to 5 mv.
b. 4 to 20 ma.
,c. digital computer words.
d. on or off signals. - ANSWER-c. digital computer words.
A shield around the signal lead is the most effective
protection against:
a. impedance.
b. unwanted conductance.
c. noise.
d. inverted sources. - ANSWER-c. noise.
The most important consideration in loop control is:
a. accessibility.
b. accuracy.
, c. cost.
d. response. - ANSWER-d. response.
Which element makes a programmable logic controller
system flexible?
a. Memory.
b. I/O.
c. Program.
d. Power supply. - ANSWER-c. Program.
Local I/O expansion involves the addition of:
a. a second processor.
b. a shift register.