1) What is the relationship between the steady-state error, gain and the tendency of oscillations when the controller is supposed to be under the proportional action?
a. Steady-state error increases with an increase in gain and oscillation tendency
b. Steady-state error decreases with the decrease in gain and oscillation tendency
c. Steady-state error decreases with an increase in gain and oscillation tendency
d. Steady-state error increases with the decrease in gain and oscillation tendency
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Answer
Explanation
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ANSWER: Steady-state error decreases with an increase in gain and oscillation tendency
Explanation:
No explanation is available for this question!
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2) The quarter-amplitude decay ratio is basically a design criteria specified by Zeigler-Nichols method implies that the amplitude of an oscillation must be reduced by a factor of ________
a. Four over a whole period
b. Four over an half period
c. Four over a quarter period
d. Four over a quarter and a half period
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Answer
Explanation
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ANSWER: Four over a whole period
Explanation:
No explanation is available for this question!
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3) Which category of photo-electric transducer leads to the production of an output voltage only in accordance and proportional to the radiation intensity?
a. Photo-emissive Transducer
b. Photo-conductive Transducer
c. Photo-voltaic Transducer
d. All of the above
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Answer
Explanation
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ANSWER: Photo-voltaic Transducer
Explanation:
No explanation is available for this question!
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4) What kind of bonding cement is supposed to get cured instantaneously in the fabrication process of strain-gauge used as a pressure measuring transducer?
a. Duco Cement
b. Epoxy Cement
c. Acrylic Cement
d. Phenolic Bakellite Cement
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Answer
Explanation
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ANSWER: Acrylic Cement
Explanation:
No explanation is available for this question!
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5) Which among the below stated does not belong to the category of analog transducers?
a. Shaft Encoder
b. LVDT
c. Thermistor
d. Strain-gauge
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Answer
Explanation
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ANSWER: Shaft Encoder
Explanation:
No explanation is available for this question!
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6) Which phenomenon occurs due to coincidence of two output signals generated manually as well as by control algorithm at the time of switching in manual mode?
a. Bumped Data Transfer
b. Bumpless Transfer
c. Coincidence Data Transfer
d. None of the above
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Answer
Explanation
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ANSWER: Bumpless Transfer
Explanation:
No explanation is available for this question!
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7) 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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Answer
Explanation
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ANSWER: By common-mode rejection of receiving device
Explanation:
No explanation is available for this question!
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8) 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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Answer
Explanation
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ANSWER: Transmission power is lowered upto 4-20mA current output signal
Explanation:
No explanation is available for this question!
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9) Which reversible phenomenon in a thermocouple device exhibits the absorption and liberation of heat during flow of current through the two dissimilar copper-iron and iron-copper junctions under the application of an external e.m.f by transforming these junctions to be hot and cold respectively?
a. Seebeck Effect
b. Peltier Effect
c. Thompson Effect
d. None of the above
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Answer
Explanation
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ANSWER: Peltier Effect
Explanation:
No explanation is available for this question!
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10) Which machine tools are basically handled and controlled by Computer Numerical Control (CNC) machine especially at the manufacturing sector?
a. Lathes
b. Routers
c. Mills & Grinders
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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