Ignition temperature decreases progressively from anthracite to lignite, because___________________?
Correct answer: A. Volatile matter content increases
- A. Volatile matter content increases
- B. Carbon content decreases
- C. Moisture content increases
- D. Ash content increases
Explanation
As coal rank decreases from anthracite to lignite, volatile matter increases and makes ignition easier, so the ignition temperature falls. Carbon content decreases as well, but the key direct factor is the rising volatile matter.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles 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 Chemical Process Principles questions
The most matured coal out of the following is__________________?
Calorific value of both the solid & liquid fuels can be determined by using ______________ calorimeter?
The advantage of firing pulverised coal in the furnace lies in the fact, that it____________________?
For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3), while the C.V. is same on weight basis (i.e., kcal/kg) ?
A good metallurgical coke should have very low__________________?
Washing of coal________________?