Fill in the blank with the most appropriate word from the options given below:
Before the old railway bridge was repaired, an expert in ______ was called in to find out why its steel beams had become weak and brittle.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Metallurgy
Complete sentence: Before the old railway bridge was repaired, an expert in metallurgy was called in to find out why its steel beams had become weak and brittle.
| Word | Meaning | Example |
|---|---|---|
| (1) Metallurgy (answer) | the science of metals: how they are taken out of ores, mixed and made strong | Ishaan studied metallurgy and now works at a steel plant in Jamshedpur. |
| (2) Metrology | the science of measurement | The metrology lab checks that the weighing scales used in shops are accurate. |
| (3) Mineralogy | the study of minerals, the natural substances that rocks are made of | In mineralogy, students learn to tell quartz from mica by their hardness and shine. |
| (4) Petrology | the study of rocks | The petrology professor brought a piece of basalt from the Deccan for us to hold. |