37451. Which of the following is the most widely used cracking process in oil refineries ?
37452. Catalyst used in the catalytic polymerisation is
37453. Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?
37454. The solvent used in Barisol dewaxing process is
37455. Diesel used in naval applications has a minimum cetane number of
37456. Which of the following tests is not done for transformer oil ?
37457. Which is the most undesirable component in kerosene ?
37458. Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.
37459. Solvent used in duo-sol extraction for lube oil upgradation is a mixture of
37460. Lavatory cisterns are normally made of
37461. In soldering aluminium cables with a ferrule joint it is advisable to use
37462. Cellulose is the main contituent of most __________ fibres.
37463. __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
37464. __________ tubes are good substitude for human blood vessels onrheart by-pass operation.
37465. Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex ?
37466. Automobile steering wheels are normally made of
37467. In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer ?
37468. 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C.
37469. Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.
37470. Which of the following low molecular weight (<104 ), soft & waxy polymer is used in chewing gum ?
37471. Buna-S is a __________ material.
37472. Zeigler - Natta catalyst (AlR3 - AlCl3) is used in the polymerisation of
37473. Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
37474. The distance between clips in horizontal runs shall not exeed
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