MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering (MCQ) questions and answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The temperature control system which maintains the temperature of a room at 30 C when it is set is an example of_____ |
| A. | Open loop system |
| B. | Closed loop system |
| C. | Both a. and b. |
| D. | None of the above |
| Answer» C. Both a. and b. | |
| 2. |
Which of the following can be the output of PLC?1. Relay coils2. Solenoids3. Indicators4. Motors5. Lamps6. Alarms |
| A. | Only (1), (2), (3) and (4) |
| B. | Only (3), (4), (5) and (6) |
| C. | Only (1), (2), (3) and (5) |
| D. | All the (1), (2), (3), (4), (5), and (6) |
| Answer» E. | |
| 3. |
Arrange the following components of temperature measurement system according to measurement systemHot body, Display system, Thermocouple, Amplifier and converter |
| A. | Hot body----Display system-----Thermocouple-----Amplifier and converter |
| B. | Hot body----Amplifier and converter-----Thermocouple-----Display system |
| C. | Hot body----Thermocouple-----Amplifier and converter-----Display system |
| D. | Display system-----Hot body----Thermocouple-----Amplifier and converter |
| Answer» D. Display system-----Hot body----Thermocouple-----Amplifier and converter | |
| 4. |
Which of the following statements are true for block diagrams?1. Block diagrams are the pictorial representation of the system2. The complicated systems can be easily represented by connecting different blocks3. Block diagram represents the relationship between input and output of the system |
| A. | Statements (1) and (2) |
| B. | Statements (2) and (3) |
| C. | Statements (1) and (3) |
| D. | Statements (1), (2) and (3) |
| Answer» E. | |
| 5. |
Which of the following is/are the drawback/s of proportional control?1. Proportional control system is complicated and costly.2. Proportional control system is not suitable for pressure temperature and flow control problems3. If there are sudden disturbance, the proportional control system takes time to stabilize. |
| A. | (1) |
| B. | (2) |
| C. | (3) |
| D. | (1), (2) and (3) |
| Answer» D. (1), (2) and (3) | |
| 6. |
Shifting of set point and adjusting its new value by the controller, when the value of disturbance increases, is called as_______. |
| A. | set-shift |
| B. | offset |
| C. | stabilization |
| D. | none of the above |
| Answer» C. stabilization | |