____________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia ?
(A) Solvay
(B) Ostwald’s
(C) Haber’s
(D) None of these
Pick out the wrong statement ?
(A) Low intensity explosives are also called propellants, whereas high intensity explosive are called detonators
(B) Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur
(C) Lead azide is a popular military explosive
(D) TNT is a hygroscopic explosive having very high melting point and is non-toxic to human being
Addition of calcium oxide to water produces___________________?
(A) Exothermic heat
(B) Hissing sound
(C) Slaked lime
(D) All A ,
Pick out the wrong statement?
(A) Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
(B) Portland cement is made employing wet process
(C) Gypsum is added to Portland cement to lengthen its setting time
(D) None of these
Bromine is used in the preparation of___________________?
(A) Fire extinguishing compounds
(B) Fire proofing agents
(C) Dyes and antiknock compounds
(D) All A ,
Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have___________________?
(A) High electrical insulation properties
(B) Sharp melting points
(C) Low co-efficient of thermal expansion
(D) Compressive strength much greater than their tensile strengths
Fumigant insecticides___________________?
(A) Kill insects, when they eat it
(B) Emit poisonous vapour
(C) Are absorbed throughout the plant
(D) None of these
Pick out the wrong statement?
(A) Net worth means paid up share capital and reserve & surplus (i.e. shareholders equity)
(B) Return on equity = profit after tax/net worth
(C) Working capital turnover ratio = sales/net working capital
(D) Total cost of production is more than net sales realisation (NSR) at breakeven point
Pick out the wrong statement?
(A) Gross margin = net income – net expenditure
(B) Net sales realisation (NSR) = Gross sales – selling expenses
(C) At breakeven point, NSR is more than the total production cost
(D) Net profit = Gross margin – depreciation – interest
Pick out the correct statement ?
(A) Difference between income and expense is termed as gross revenue
(B) Unamortised cost is the difference between the original cost of a property and all the depreciation charges made to date
(C) Sum-of-the-years-digits methods of depreciation calculation accounts for the interest on the investment
(D) Scrap value is the net amount of money obtainable from the sale of used property over and above any charges involved in its removal & sale