18652. Low grade coal is __________ to produce ammonia synthesis gas.
18653. Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it
18654. Rock phosphate used for the production of phosphatic fertiliser is mined at
18655. CaH4(PO4)2 is the chemical formula of
18656. Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.
18657. Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the
18658. Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
18659. In natural gas, the C/H ratio (by weight) varies in the range of
18660. Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth ?
18661. Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process ?
18662. Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in
18663. Which of the following does not come under the category of'primary nutrient' for plant growth?
18664. Effectiveness of a fertiliser is independent of the
18665. Which nutrient in fertiliser makes the plant stems stronger and increases branching ?
18666. Optimum reaction temperature in steam reforming of naphtha is __________ °C.
18667. Which of the following is a natural inorganic fertiliser ?
18668. Yield of elemental phosphorous from rock phosphate is about __________ percent.
18669. Conversion achieved in HNO3 synthesis with the use of platinum catalyst is about 95-97%. The rate of formation of nitrogen dioxide from the oxidation of nitric acid is favoured by
18670. Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is
18671. ---------------is reduced in turning operation
18672. Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3
18673. Ammonium nitrate is
18674. Urea is a better fertilizer than ammonium sulphate, because
18675. Reaction of cresylic acid with __________ produces tricresyl phosphate.
18676. In the manufacture of urea, the intermediate chemical formed is
18677. A hydro electric power station is commonly constructed at:
18678. Nitrolime is chemically known as
18679. Morse test is conducted to find out the indicated power of:
18680. Potassic fertilisers
18681. ”Intensity of pressure at a point in a fluid at rest is same in all directions”,this law is:
18682. The main constituent of rock phosphate is
18683. One litre of water occupies a volume of:
18684. Out of the following, N2 content is minimum in
18685. The ratio of strength of solid to hollow shaft,both having outside diameter D and hollow having inside diameter D/2 in torsion is:
18686. Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?
18687. The bending moment is maximum on a section where the shearing force:
18688. Nitrolime is
18689. A structure used to dam up a stream or a river,over which the water flows is called:
18690. Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
18691. The most efficient air standard cycle is:
18692. Which of the following does not come under the category of 'micro-nutrient' for plant growth?
18693. The function of an inter cooler in multi stage compressor is:
18694. The composition of fresh feed to the high temperature, high pressure urea autoclave is
18695. The brake power of an internal combustion engine can be found out with the help of:
18696. __________ is required more for leafy crops.
18697. The property of the fluid by which molecules of different kinds of fluids are attracted to each other is called
18698. Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the
18699. In water tube boilers:
18700. Monte catini process is a widely used process for the manufacture of