IN: Twincharger refers to a compound forced induction system used on some piston-type internal combustion engines. It is a combination of an exhaust-driven turbocharger and an engine-driven supercharger, each mitigating the weaknesses of the other. A belt-driven or shaft-driven supercharger offers exceptional response and low-rpm performance as it has no lag time between the application of throttle and pressurization of the manifold (assuming that it is a positive-displacement supercharger such as a Roots type or twin-screw and not a Centrifugal compressor supercharger, which does not provide boost until the engine has reached higher RPMs). When combined with a large turbocharger -- if the ''turbo'' was used by itself, it would offer unacceptable lag and poor response in the low-rpm range -- the proper combination of the two can offer a zero-lag powerband with high torque at lower engine speeds and increased power at the higher end. Twincharging is therefore desirable for small-displacement motors (such as VW's 1.4TSI), especially those with a large operating rpm, since they can take advantage of an artificially broad torque band over a large speed range.
is it possible to turbo and supercharge a car?

OPTIONS:
- no
- yes

OUT: yes

IN: When impure (cast) iron is in contact with water, oxygen, other strong oxidants, or acids, it rusts. If salt is present, for example in seawater or salt spray, the iron tends to rust more quickly, as a result of electrochemical reactions. Iron metal is relatively unaffected by pure water or by dry oxygen. As with other metals, like aluminium, a tightly adhering oxide coating, a passivation layer, protects the bulk iron from further oxidation. The conversion of the passivating ferrous oxide layer to rust results from the combined action of two agents, usually oxygen and water.
does the quality of air and water affect the rusting process?

OPTIONS:
- no
- yes

OUT: yes

IN: There are two common types of mass airflow sensors in use on automotive engines. These are the vane meter and the hot wire. Neither design employs technology that measures air mass directly. However, with additional sensors and inputs, an engine's ECU can determine the mass flow rate of intake air.
are all mass air flow sensors the same?

OPTIONS:
- no
- yes

OUT: no

IN: Andorra introduced a smoking ban in all public places on 13 December 2012. However, an exception was made for bars and restaurants, allowing special smoking rooms as long as they fulfill strict conditions: such as not serving food and drink. In 2014, Andorra joined France and Spain in banning smoking indoors, which resulted in the first smoke free ski season in Andorra.
is it illegal to smoke indoors in spain?

OPTIONS:
- no
- yes

OUT:
yes