Spark plugs, ignition tubes and electrodes are made of nickel ____________ alloys?
Correct answer: B. Manganese
- A. Beryllium
- B. Manganese
- C. Copper
- D. Iron
Explanation
Nickel-manganese alloys retain strength and resist oxidation at the high temperatures encountered in spark-plug electrodes, ignition tubes and similar components. This combination is preferred over ordinary nickel-copper or nickel-iron alloys for such service.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
Balls in a ball mill are usually made of__________________?
Galvanising (i.e., zinc coating) of steel sheets is done to______________________?
A bearing metal should not have___________________?
Diamagnetic materials are magnetised________________?
Hydrochloric acid is stored in a _____________ steel vessel?
For spinning viscose rayon, the extrusion spinnerettes are made of ___________________?