GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
1. | Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-200, before atomisation through burners is___? | ||
A. | 200 �F | ||
B. | 200 �C | ||
C. | 200 �K | ||
D. | 200 �R | ||
2. | The average molecular weight of a flue gas having the composition by volume as CO2 = 25%, O2 = 25%, N2 = 50% will be__? | ||
A. | 27.6 | ||
B. | 23 | ||
C. | 47.3 | ||
D. | 42.9 | ||
3. | The hottest part of the flame lies in its ____ zone? | ||
A. | Non-luminous | ||
B. | Luminous | ||
C. | Yellow | ||
D. | Unburnt gases | ||
4. | Highly caking coals___? | ||
A. | Produce weak coke | ||
B. | Produce strong coke | ||
C. | May damage the coke oven walls during carbonisation | ||
D. | Both B. and C. | ||
5. | L.D. converter gas (produced in steel plant) comprises mainly of __? | ||
A. | CO (upto 65%) & CO2 | ||
B. | CO2 & H2 | ||
C. | CO & O2 | ||
D. | CO2 & O2 | ||