Decreased capacity
Increase in liquor film co-efficient
Decreased effect of hydrostatic head
Increased true temperature drop
✅ The correct answer is option A.
Engineering
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2562. Feedstock for the production of biodiesel is
herbal plants
used vegetable oils
LSHS
bagasse
✅ The correct answer is option B.
2563. Flash point of an oil gives an idea of the
nature of boiling point diagram of the system.
amount of low boiling fraction present.
explosion hazards.
all (a), (b) and (c).
✅ The correct answer is option D.
2564. Octane number of gasoline produced by two stage fluidised catalytic cracking process is
80
87
92
97
✅ The correct answer is option D.
2565. Terminal point temperature differences between fluids in case of a heat exchanger is termed as
Approach
Log mean temperature difference
Arithmetic mean temperature difference
Geometric mean temperature difference
✅ The correct answer is option A.
2566. In a shell and tube heat exchanger, the shell side fluid velocity can not be changed by changing the
Tube layout
Tube diameter
Tube pitch
No. of baffles
✅ The correct answer is option B.
2567. The doctor’s solution comprises of sodium plumbite in
alcohal
water
aqueous caustic soda
soda ash
✅ The correct answer is option C.
2568. Which of the following petroleum products contain minimum sulphur ?
Naphtha
Kerosene
LSHS
Furnace oil
✅ The correct answer is option A.
2569. Atomising steam to fuel oil ratio in a burner should be around
0.5
1.5
2.5
3.5
✅ The correct answer is option A.
2570. Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.
50
70
90
140
✅ The correct answer is option C.