Q13. Flare systems are used to b) Remove excess hydrocarbons from a variety of p

Question

Q13. Flare systems are used to b) Remove excess hydrocarbons from a variety of plant processes (c) Burn hazardous waste (a) Safely burn excess hydrocarbons (d) a and b 014 deals with start-up items, whereas hardwire interlocks deal with shut down items (a) Passive interlock (b) Permissive (c) DCS (d) Hardwire circuit Q15. The two types of interlocks are (a) Soft-wire and hardwire (b) Permit and interlock (c) Cold and hot (d) Open and closed Q16. Upon establishing a set point, the control loop operate using a four-step process (choose the right sequence) (a) Sense, Affect, Compare, Respond (b) Sense, Compare, Respond, Affect (c) Sense, Respond, Compare, Affect (d) Compare, Sense, Respond Affect (e) Compare, Respond, Sense, Affect

Explanation / Answer

Question no14.

If organic compound are allowed to enter as it is in atmosphere, due to its heavy molecular weight compared to nitrogen and oxygen in air. It will settle down in the lower atmosphere and effect the atmosphere badly. To prevent industry normally tends to burn off its hydrocarbon into COx and NOx and and then allow it to go to the atmosphere

Hence the correct option is option a) Safely burn excess hdyrogen.

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