This set of Flexible Manufacturing System Multiple Choice Questions & Answers (MCQs) focuses on “Capabilities of Computer Control”.
1. Which refers to the periodic sampling of data through which the status of the process can be determined?
a) Delivering
b) Processing
c) Interlocking
d) Polling
View Answer
Explanation: Polling is defined as the periodic sampling of data through which the status of the process can be determined in a computer process control. This feature allows to controller to cope up with the real time operating conditions.
2. How is polling commonly termed as?
a) Seasoning
b) Scanning
c) Pointing
d) Driving
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Explanation: Polling is commonly known as scanning or sampling. This process requests for any changes made in the system and also collects new data from the process.
3. Which of the following is the reciprocal of time interval between data collections?
a) Polling Time
b) Polling Order
c) Polling Frequency
d) Polling Format
View Answer
Explanation: Polling Frequency is defined as the reciprocal of time interval between data collections.
4. A lower priority function can interrupt the higher priority function.
a) True
b) False
View Answer
Explanation: A higher priority function can interrupt the lower priority function. Importance will be given to the higher priority function since it is provided concerning safety precautions.
5. Which of the following refers to the manner in which the sampling procedure is designed?
a) Polling Format
b) Polling Frequency
c) Polling Speed
d) Polling Time
View Answer
Explanation: Polling Format is defined as the manner in which the sampling procedure has to be designed.
6. Which of the following is a safeguard mechanism for coordinating the activities of two or more devices and eliminating the interference of devices?
a) Interlock
b) Swift Lock
c) Dividend Lock
d) Safe lock
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Explanation: A safeguard mechanism which is used for coordinating the activities of two or more devices and eliminating the interference of devices is known as interlock. It ensures that a certain piece operations are completed before starting the new one.
7. Which of the following is a signal that originates from the external device?
a) Input Interlock
b) Swift Interlock
c) Dividend Interlock
d) Deemed Interlock
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Explanation: A Signal that usually originates from the external device is known as input interlock. It will be sent to the controller.
8. Which of the following is a signal that is sent from the controller to any external device?
a) Output Interlock
b) Input Interlock
c) Dividend Interlock
d) Deemed Interlock
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Explanation: A Signal that is sent from the controller to any external device is known as output interlock. External devices can be controlled using this signal.
9. Which of the following is a computer control feature that permits the execution of current program to be temporarily suspended to execute another program?
a) Interrupt System
b) Disrupt System
c) Sweep System
d) Scan System
View Answer
Explanation: A computer control feature that permits the execution of current program to be temporarily suspended to execute another program is known as interrupt system. Responses will be given on a higher priority level.
10. Which type of interrupt is generated by the computer system itself?
a) Internal Interrupt
b) Angular Interrupt
c) Polar Interrupt
d) External Interrupt
View Answer
Explanation: The type of interrupt which is generated by the computer system itself is known as internal interrupt. Time initiated events such as polling of data from sensors from sensors connected to the process will be processed in this category.
11. Which type of interrupts is external to the computer system?
a) Internal Interrupt
b) Angular Interrupt
c) Polar Interrupt
d) External Interrupt
View Answer
Explanation: The type of interrupt which are external to the computer system is known as external interrupt. Process initiated interrupts and operator events are included in this category.
12. Which of the following is the sequence of sampling different data collection points of the process?
a) Polling Frequency
b) Polling Time
c) Polling Order
b) Polling Speed
View Answer
Explanation: Polling Order is defined as the sequence of sampling different data collection points of the process.
13. A function at a given priority level can interrupt the function at the same priority level.
a) False
b) True
View Answer
Explanation: A function at a given priority level cannot interrupt the function at the same priority level.
14. Which of the following interrupt system has only two modes of operation?
a) Angular Interrupt System
b) Polar Interrupt System
c) Single Level Interrupt System
d) Multi Level Interrupt System
View Answer
Explanation: The interrupt system which has only two modes of operation is known as single level interrupt system. Normal mode and interrupt mode are the two types of modes in this system.
15. Which of the following interrupt system has normal operating mode and more than one interrupt level?
a) Angular Interrupt System
b) Polar Interrupt System
c) Single Level Interrupt System
d) Multi Level Interrupt System
View Answer
Explanation: The interrupt system which has normal operating mode and more than one interrupt level is known as multi level interrupt system. Here, normal mode can be interrupted at any interrupt level.
16. Which of the following computer function has the highest priority level in an interrupt system?
a) Process Interrupts
b) Timer Interrupts
c) System and Program Interrupts
d) Emergency Stop
View Answer
Explanation: The computer function which has the highest priority level in an interrupt system is the emergency stop.
17. Which of the following computer function has the lowest priority level in an interrupt system?
a) Operator Inputs
b) Timer Interrupts
c) System Interrupts
d) Program Interrupts
View Answer
Explanation: Most of the operator inputs other than the emergency stop are given the lowest priority level in an interrupt system.
18. Which of the following is an event that is outside the normal or desired operation of the process?
a) Operation
b) Interruption
c) Inspection
d) Exception
View Answer
Explanation: An event which is outside the normal or desired operation of the process is known as exception in process control. Normal polling procedure or an interrupt system can be used to handle the exception.
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