Related Questions

In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from
A 50° - 60°
B 60° - 70°
C 70° - 80°
D 80° - 90°
By compounding the expansion of steam in two or more cylinders, the ratio of expansion
A Does not change
B Increases
C Decreases
D None of these
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.
A Equal to
B Less than
C More than
D None of these
Work-done in a free expansion process is
A Zero
B Minimum
C Maximum
D Positive
In a free expansion process
A Work done is zero
B Heat transfer is zero
C Both (A) and (B) above
D Work done is zero but heat increases
On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by
A Horizontal straight line
B Vertical straight line
C Straight inclined line
D Curved line
2x+18x8 এর বিস্তৃতিতে এক্স বর্জিত পদের মান হলো-(The x-free term in the expansion of 2x+18x8 is-)
A 7081
B 520
C 35128
D 7512
Work done in case of free expansion is
A Indeterminate
B Zero
C Negative
D None of these
2x+18x8 এর বিস্তৃতিতে x বর্জিত পদের মান হলো- (The x-free term in the expansion of 2x+18x8 is-)
A 7081
B 520
C 35128
D 7512
Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these

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