MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Measurements knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Nickel and its alloys can be used over a temperature range of ________ |
| A. | 100 to 450 K |
| B. | 10 to 50 K |
| C. | 0 to 25 K |
| D. | 5 to 15 K |
| Answer» B. 10 to 50 K | |
| 2. |
In a temperature sensing element ________ |
| A. | low value of α is required |
| B. | infinite value of α is required |
| C. | α must be zero |
| D. | high value of α is required |
| Answer» E. | |
| 3. |
NICKEL_AND_ITS_ALLOYS_CAN_BE_USED_OVER_A_TEMPERATURE_RANGE_OF_________?$ |
| A. | 100 to 450 K |
| B. | 10 to 50 K |
| C. | 0 to 25 K |
| D. | 5 to 15 K |
| Answer» B. 10 to 50 K | |
| 4. |
How can corrosion be prevented in a resistance thermometer?$ |
| A. | by immersing the setup in oil |
| B. | by enclosing the elements in a glass tube |
| C. | by using guard rings |
| D. | by painting the elements |
| Answer» C. by using guard rings | |
| 5. |
In a temperature sensing element _______? |
| A. | low value of α is required |
| B. | infinite value of α is required |
| C. | α must be zero |
| D. | high value of α is required |
| Answer» E. | |
| 6. |
Most metallic conductors have a ________ |
| A. | neutral temperature coefficient of resistance |
| B. | negative temperature coefficient of resistance |
| C. | positive temperature coefficient of resistance |
| D. | zero temperature coefficient of resistance |
| Answer» D. zero temperature coefficient of resistance | |
| 7. |
If the sensing element is large, then less amount of heat is required. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Resistance thermometer provides the change in electrical resistance. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Platinum is used for industrial applications because ________ |
| A. | it is cheap |
| B. | it is available readily |
| C. | it is a noble metal |
| D. | it gives accurate measurements |
| Answer» E. | |
| 10. |
Sensing element in the thermometer must provide ________ |
| A. | small change in resistance |
| B. | no change in resistance |
| C. | large change in resistance |
| D. | infinite change in resistance |
| Answer» D. infinite change in resistance | |
| 11. |
Relation between temperature and resistance of a conductor is ________ |
| A. | R<sub>t</sub> = R<sub>ref</sub> [1+t]. |
| B. | R<sub>t</sub> = R<sub>ref</sub> [1+α∆t]. |
| C. | R<sub>t</sub> = R<sub>ref</sub> [1-αt]. |
| D. | R<sub>t</sub> = R<sub>ref</sub> [1-t]. |
| Answer» C. R<sub>t</sub> = R<sub>ref</sub> [1-‚âà√≠¬¨¬±t]. | |
| 12. |
Resistance temperature detector is ___________ |
| A. | a electrical transducer |
| B. | a mechanical transducer |
| C. | a chemical transducer |
| D. | a physical transducer |
| Answer» B. a mechanical transducer | |