Question: Mineral matter, ‘M’ and ash percentage ‘A’ in coal are roughly related as
[A].M = 1.8 A
M = 0.5 A
M = 1.1 A
M = A
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Chemical Engineering
For long flame and easy ignition, the coal used should have
Question: For long flame and easy ignition, the coal used should have
[A].high volatile matter
low ash
high calorific value
high ash
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called
Question: Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called
[A].back draughting.
banking.
under pressurising.
none of these.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
‘Fat’ coal means a coal having
Question: ‘Fat’ coal means a coal having
[A].low calorific value.
high volatile matter,
low ash content.
non smoking tendency.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Mott and Wheeler test is conducted on coke to find its
Question: Mott and Wheeler test is conducted on coke to find its
[A].reactivity with O2.
abradability.
phosphorus content.
volatile matter content.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.
Question: Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.
[A].<120
>120
<90
90-110
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Abel apparatus is used for those oils, whose flash points are___°F.
Question: Abel apparatus is used for those oils, whose flash points are___°F.
[A].<120
>120
>280
300-600
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of
Question: Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of
[A].MgO & Na2CO3
MgSO4 & BaCl2
BaSO4 & NaCl
MgCO3 & NaCl
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
In Orsat’s apparatus, ammoniacal cuprous chloride is used for selectivity absorbing
Question: In Orsat’s apparatus, ammoniacal cuprous chloride is used for selectivity absorbing
[A].CO
CO2
O2
H2O
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
The calorific value is the highest out of the following for
Question: The calorific value is the highest out of the following for
[A].producer gas
water gas
coke oven gas
blast furnace gas
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.