MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials and Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the maximum usable temperature of radiation pyrometers? |
| A. | 1000 F |
| B. | 5000 F |
| C. | 10000 F |
| D. | No limit |
| Answer» E. | |
| 2. |
What does Stefan-Boltzmann law for radiation pyrometers denote? |
| A. | W = KT<sup>4</sup> |
| B. | W = KT |
| C. | W = KT<sup>-4</sup> |
| D. | W = K/T<sup>4</sup> |
| Answer» B. W = KT | |
| 3. |
A radiation pyrometer is based on ___________ |
| A. | Planck s law |
| B. | Stefan-Boltzmann law |
| C. | Rayleigh-Jeans law |
| D. | Sakuma-Hattori equation |
| Answer» C. Rayleigh-Jeans law | |
| 4. |
Which type of pyrometer uses an electric circuit? |
| A. | Controlling pyrometer |
| B. | Optical pyrometer |
| C. | Radiation pyrometer |
| D. | Recording pyrometer |
| Answer» B. Optical pyrometer | |
| 5. |
__________are used as protecting tubes in thermocouples above 2000 F. |
| A. | Wrought iron |
| B. | 14% chrome iron |
| C. | Nichrome |
| D. | Porcelain |
| Answer» E. | |
| 6. |
Which material is used when radiation pyrometers don t produce a satisfactory result? |
| A. | Chromel-Alumel |
| B. | Iron-Constantan |
| C. | Copper-Constantan |
| D. | Rhodium-Platinum |
| Answer» E. | |
| 7. |
What is the most widely used method for metallurgical temperature measurement? |
| A. | Thermoelectric pyrometer |
| B. | Optical pyrometer |
| C. | Radiation pyrometer |
| D. | Recording pyrometer |
| Answer» B. Optical pyrometer | |