Automation System A Hall effect switch is usually used to: measure voltage sense a vacuum None of these sense the presence of a magnetic object. measure temperature measure voltage sense a vacuum None of these sense the presence of a magnetic object. measure temperature ANSWER DOWNLOAD EXAMIANS APP
Automation System An operational amplifier: All of these can be used to subtract two or more signals uses the principle of feedback can be used to sum two or more signals None of these All of these can be used to subtract two or more signals uses the principle of feedback can be used to sum two or more signals None of these ANSWER DOWNLOAD EXAMIANS APP
Automation System Computer-based controllers: are very difficult to change should be built in a modular fashion wherever possible (a) and (c) above are very flexible None of these are very difficult to change should be built in a modular fashion wherever possible (a) and (c) above are very flexible None of these ANSWER DOWNLOAD EXAMIANS APP
Automation System Resolution in a CRT refers to: the number of addressable elements on the tube the speed at which the monitor can accept data from the computer None of these the number of phosphor dots that react when hit by the electron beam the number of pixels in each square centimeter the number of addressable elements on the tube the speed at which the monitor can accept data from the computer None of these the number of phosphor dots that react when hit by the electron beam the number of pixels in each square centimeter ANSWER DOWNLOAD EXAMIANS APP
Automation System The output of a thermocouple is: a voltage a capacitance a current None of these a resistance a voltage a capacitance a current None of these a resistance ANSWER DOWNLOAD EXAMIANS APP
Automation System A disadvantage of Numerical Control (NC) is: None of these the computer is not reliable one operator is needed for each machine. the tape and tape reader are not reliable the machine tool can easily overheat None of these the computer is not reliable one operator is needed for each machine. the tape and tape reader are not reliable the machine tool can easily overheat ANSWER DOWNLOAD EXAMIANS APP
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