total annual rate of production equals the assigned value.
total annual product cost equals the total annual sales.
annual profit equals the expected value.
annual sales equals the fixed cost.
✅ The correct answer is option B.
Engineering
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2262. Tunnel kilns are usually used for
Roasting of pyrites
Drying/tempering of refractories
Reheating of slabs
Melting of glass
✅ The correct answer is option B.
2263. Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
20
40
60
80
✅ The correct answer is option D.
2264. Cost incurred towards __________ in a chemical plant is a component of the utilities cost.
water supply
running a control laboratory
property protection
medical services
✅ The correct answer is option A.
2265. The rate of scaling of furnace stock depends upon the
Temperature
Time
Nature of atmosphere
All of the above
✅ The correct answer is option D.
2266. Which of the following is a directly fired intermittant furnace?
Walking beam reheating furnace
Reverberatory furnace
Tower furnace
Tunnel kiln
✅ The correct answer is option B.
2267. Equipment installation cost in a chemical process plant ranges from __________ percent of the purchased equipment cost.
10 to 20
35 to 45
55 to 65
70 to 80
✅ The correct answer is option B.
2268. Following the six-tenth factor rule, if a log-log plot of capacity of the equipment vs. cost of the equipment is made, then a straight line is obtained, whose slope is equal to
0.1
0.6
0.2
0.8
✅ The correct answer is option B.
2269. Which one shows the diagramatic heat balance in a furnace?
Sankey diagram
Cox chart
Ostwald chart
None of these
✅ The correct answer is option A.
2270. Example of an indirectly heated furnace is
Hood annealing furnace
Muffle furnace
Both A and B
Neither A nor B
✅ The correct answer is option C.