Question

Put true or false 13- The risk assessment was done on the assumption that the proposed project would be maintained to an acceptable level and that all statutory regulations would be applied. It was also assumed that the detailed engineering designs were done by competent people and would be correctly specified for the intended duty. 14- Ammonium nitrate is the most important nitrogen fertilizer because of the low nitrogen content (35 per cent) and the simplicity and cheapness of manufacture. 15- The catalyst of ammonia is a purified magnetic V$_2$O$_5$, doubly promoted with small percentages of aluminum and potassium oxides. The catalyst life is short, about 3months, but the small volumes used help offset this loss procedure employs an electrically controlled converter at 200 atm. and 500°C. 16- Nickel, chromium, molybdenum, copper, a silicon are the most important elements that enhance corrosion resistance of alloys. 17- Vanadium pentoxide was becoming the dominate catalyst used because of insensitivities to poisons and lower cost. 18- Steam is used to pre-heat and vapor from the absorption towers used to cool. 19- The dry process is especially applicable to natural cement rock and to the mixtures of limestone and shale or slate. In this process the materials are roughly crushed in jaw crushers followed by gyratory mills, then dried, sized, and more finely ground in tube mills. This dry powdered material is fed directly to the rotary drum where the previously mentioned chemical reactions take place. 20- Important variables for corrosion concentration of the acid, temperature of service, speed of flow in pipes and equipment and alloy element make-up.

Put true or false
13- The risk assessment was done on the assumption that the proposed project would be
maintained to an acceptable level and that all statutory regulations would be applied. It
was also assumed that the detailed engineering designs were done by competent people
and would be correctly specified for the intended duty.
14- Ammonium nitrate is the most important nitrogen fertilizer because of the low nitrogen
content (35 per cent) and the simplicity and cheapness of manufacture.
15- The catalyst of ammonia is a purified magnetic V$_2$O$_5$, doubly promoted with small
percentages of aluminum and potassium oxides. The catalyst life is short, about
3months, but the small volumes used help offset this loss procedure employs an
electrically controlled converter at 200 atm. and 500°C.
16- Nickel, chromium, molybdenum, copper, a silicon are the most important elements that
enhance corrosion resistance of alloys.
17- Vanadium pentoxide was becoming the dominate catalyst used because of insensitivities
to poisons and lower cost.
18- Steam is used to pre-heat and vapor from the absorption towers used to cool.
19- The dry process is especially applicable to natural cement rock and to the mixtures of
limestone and shale or slate. In this process the materials are roughly crushed in jaw
crushers followed by gyratory mills, then dried, sized, and more finely ground in tube
mills. This dry powdered material is fed directly to the rotary drum where the previously
mentioned chemical reactions take place.
20- Important variables for corrosion concentration of the acid, temperature of service, speed
of flow in pipes and equipment and alloy element make-up.

Added by Juan Francisco M.

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