Analysis of Coal and Selection Online Exam Quiz
Analysis of Coal and Selection GK Quiz. Question and Answers related to Analysis of Coal and Selection. MCQ (Multiple Choice Questions with answers about Analysis of Coal and Selection
% of nitrogen can be determined by the process ___
Options
A : dulong's formula
B : orsat's apparatus
C : kjeldahl's method
D : fractional distillation
An increase in 1% of percentage of oxygen decreases the calorific value by __
Options
A : 1.70%
B : 2.70%
C : 3.70%
D : 4.70%
During metallurgical operations, n2 causes ___
Options
A : hardness to sample
B : softness to sample
C : moisture to sample
D : heat to sample
From the raw piece, coal is manufactured by __
Options
A : under crushing
B : over crushing
C : perfectly crushed
D : powdered
High % of moisture is undesirable because ___
Options
A : increases the cost of transport
B : increases the cost of calorific value
C : increases the cost of efficiency
D : decreases the cost of storage cost
In determination of % of C and H, the coal is burnt in the stream of ___
Options
A : pure sulphur
B : pure nitrogen
C : pure alcohol
D : pure oxygen
In proximate analysis, which of the following elements can be found?
Options
A : % of moisture content
B : % of carbon
C : % of hydrogen
D : % of nitrogen
The % of the fixed carbon can be given by ___
Options
A : %C=[loss in weight due to removal of C/weight of coal sample]*100
B : %C=[weight of coal/12*100]
C : %C=100-(% of ash)
D : %C=100-(% of moisture+% of volatile matter+% of ash)
The moisture content in the coal can be given by heating the coal for ___ hours.
Options
A : 2
B : 1
C : 4
D : 6
The moisturizing the coal before introducing into furnace is called as ___
Options
A : moisturizing
B : filtering
C : tempering
D : combustion