For hydrogen analysis in blast furnace, gas by Orsat apparatus, it is completely oxidised in contact with CuO to H<sub>2</sub>O at a-temperature of about . . . . . . . . °C.

Determination of methane present in coke oven gas by orsat apparatus, it is completely oxidised in contact with CuO to CO₂ and H₂O at a temperature of, . . . . . . . . . °C.

A

350

B

500

C

800

D

1050

Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent.

A

[

A.

B. >71%

B

In between 37 & 71%

C

None of these

Which of the following facts is/are correct about the blast furnace in Iron metallurgy? Limestone is added to the blast furnace to reduce the iron oxide in the ore to iron. Coke is added to the blast furnace to physically separate iron from other impurities. Carbon dioxide reduces to carbon monoxide.

A

A and B

B

B and C

C

Only C

D

None

Short orsat apparatus gives more precise results than long orsat in the analysis of flue gas.

A

True

B

False

In the blast furnace, as the oxygen percentage in air blast increases, the
P. flame temperature increases
Q. blast volume increases
R. blast volume decreases
S. flame temperature decreases

A

P, Q

B

P, R

C

R, S

D

Q, S

Temperature of blast furnace gas emanating from blast furnace is about . . . . . . . . degree C

A

80 - 100

B

200 - 250

C

350 - 500

D

650 - 750

Which of the following statements is most relevant in the context of Job Analysis? Choose the correct answer from the code given below. (i) Job Analysis helps in identifying the right person for the right job. (ii) A person cannot judge the job from the point of view of its suitability. (iii) Job analysis helps in job satisfaction and job efficiency. (iv) Through Job Analysis an employer cannot evaluate the prospective employee to judge his fitness or otherwise for the job. (v) Job Analysis helps in planning appropriate training programs. (vi) Job Analysis defines client needs in specific terms. (vii) Job Analysis assists in knowing the personnel specifications for various jobs.

A

(i), (ii), (iii) and (iv)

B

(i), (iv), (v) and (vi)

C

(i), (iii), (vi) and (vii)

D

(ii), (iii), (v) and (vi)

The Orsat apparatus gives 1) Volumetric analysis of dry products of combustion 2) Gravimetric analysis of dry products of combustion Which of the above statements is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

In an ideal blast furnace, the input and output are as follows:
Input:
Ore, Pure Fe₂O₃, no gaunge : 1357kg/THM^∗
Coke, Pure C, no ash : 400 kg/THM
Blast air, dry : O₂ : 293 kg/HTM, N₂ : 964 KG/THM
Flux : nil
Output :
Hot metal : 5wt% C, rest iron
Slag : nil
Top gas : CO, CO₂, N₂
∗ THM refers ton of hot metal (liquid pig iron) ; Atomic weights: C-12, O-16, Fe-56 The amount of oxygen in CO & CO₂ leaving with the top gas is . . . . . . . . kg.

A

293

B

407

C

700

D

1050

In flue gas analysis by Orsat's apparatus, oxygen is absorbed by

A

Potassium hydroxide

B

Cuprous chloride

C

Alkaline pyragllol solution

D

None of these

For hydrogen analysis in blast furnace, gas by Orsat apparatus, it is completely oxidised in contact with CuO to H₂O at a-temperature of about . . . . . . . . °C.

Related Questions

For hydrogen analysis in blast furnace, gas by Orsat apparatus, it is completely oxidised in contact with CuO to H2O at a-temperature of about . . . . . . . . °C.

Related Questions

For hydrogen analysis in blast furnace, gas by Orsat apparatus, it is completely oxidised in contact with CuO to H₂O at a-temperature of about . . . . . . . . °C.