UKM Tuticorin

Tag: #dieselengines

  • EK Motor Oct 2022 (Q8)

    EK Motor Oct 2022 (Q8)

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    by

    UKM TUTICORIN
    in

    With reference to diesel engine NOx emissions: (a) explain how NOx is formed during operation of the engine, indicating why the aim of high engine efficiency increases the problem; (6) (b) describe ONE external means by which diesel engine NOx emissions may be reduced in order to meet current regulations. (10) Oct 2022 (Q8)

  • EK Motor Jul 2022 (Q8)

    EK Motor Jul 2022 (Q8)

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    by

    UKM TUTICORIN
    in

    (a) Explain why a diesel engine cylinder is supplied with excess air (4) (b) Explain why fuel droplet size produced during injection has to be within narrow limits in order to enable good cylinder combustion to be achieved (4) (c) Explain how the desired fuel droplet size is produced by fuel injections (4) (d) State…