Chemical Engineering Mcqs

Volatile matter content of metallurgical coke may be around ______________ percent?

• (A)  1-2
• (B)  10-15
• (C)  22-26
• (D)  30-33

Answer

Submitted By :Ali Uppal

The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always___________________?

• (A)  1
• (B)  < 1
• (C)  > 1
• (D)  Unpredictable

Answer

Submitted By :Ali Uppal

A good coking coal should have high ______________ content?

• (A)  Ash
• (B)  Sulphur & phosphorus
• (C)  Moisture
• (D)  None of these

Answer

Submitted By :Ali Uppal

Gross & net calorific value is the same for___________________?

• (A)  Blast furnace gas
• (B)  Coke oven gas
• (C)  L.
• (D)  converter gas

Answer

Submitted By :Ali Uppal

Removal of hydrogen from coke oven gas ___________________?

• (A)  Increases its calorific value
• (B)  Decreases its calorific value
• (C)  Does not alter its calorific value
• (D)  Is not possible on commercial scale

Answer

Submitted By :Ali Uppal

Fossil fuels mean___________________?

• (A)  Solid fuels
• (B)  Liquid fuels
• (C)  Those fuels which are found in the crust of earth
• (D)  Premature fuels with low calorific value

Answer

Submitted By :Ali Uppal

Junker’s calorimeter is used to determine the calorific value of______________________?

• (A)  Pulverised coal
• (B)  Gaseous fuels
• (C)  Fuel oil
• (D)  None of these

Answer

Submitted By :Ali Uppal

Which of the following can be made into briquettes without the use of a binder ?

• (A)  Lignite
• (B)  Bituminous coal
• (C)  Anthracite coal
• (D)  None of these

Answer

Submitted By :Ali Uppal

Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of _____________ °C?

• (A)  80-170
• (B)  200-300
• (C)  250-270
• (D)  280-300

Answer

Submitted By :Ali Uppal

Pensky-Marten apparatus is used for those oils, whose flash points are _____________ °F?

• (A)  < 120
• (B)  > 120
• (C)  < 90
• (D)  90-110

Answer

Submitted By :Ali Uppal