Q. A yarn is passing through an additive type tensioner. The mass of dead weight on disc is 50 g and the coefficient of friction between yarn and disc is 0.3. If the input tension is 50 gf, then the output tension (gf) is . Ans: 79-81
READ MORE +Q. A yarn is passing through an additive type tensioner. The mass of dead weight on disc is 50 g and the coefficient of friction between yarn and disc is 0.3. If the input tension is 50 gf, then the output tension (gf) is . Ans: 79-81
READ MORE +Life span of a tortoise is approximately Option 1 : 50–100 yearsOption 2 : 100–150 yearsOption 3 : 150–200 yearsOption 4 : 200–250 years
READ MORE +The approximate life span of a parrot is Option 1 : 1–2 weeksOption 2 : 15 yearsOption 3 : 60 yearsOption 4 : 140 years
READ MORE +Q. If the value of twist retraction of a yarn is 0.2, then the value of twist contraction (rounded off to 2 decimal places) is Ans: 1.24-1.26
READ MORE +Q. The spindle speed of a ring frame, producing a yarn of 25 tex, is 25000 rpm and the rate of delivery is 25 m/min. The twist multiplier (m-1×tex0.5) of the yarn is Ans: 5000-5000
READ MORE +Q. The experimentally determined density of a fibre is 1.31 g/cc. If the density of the void free fibre is 1.35 g/cc, then the void volume fraction (%) of the fibre sample (rounded off to 2 decimal places) is . Ans: 2.60-3.00
READ MORE +Q. In melt spinning, the diameter of monofilament at the spinneret exit is 0.3 mm and at the take-up point is 0.15 mm. Assuming that there is no change in density of filament, the spin- draw ratio is . Ans: 4-4
READ MORE +The approximate life span of a crocodile is Option 1 : 15 yearsOption 2 : 60 yearsOption 3 : 150 yearsOption 4 : 140 years
READ MORE +Q. Determine the correctness or otherwise of the following Assertion and Reason : Synthetic thickeners used in pigment printing are neutralized before printing. : Without neutralization, the viscosity required for printing would not be achieved. (A) Both and are true and is the ...
READ MORE +Clones are Option 1 : Genetically similarOption 2 : Morphologically similarOption 3 : Both (a) and (b)Option 4 : None of these
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