Problem: Please answer a question about the following article about Hydrogen:
Apart from its use as a reactant, H
2 has wide applications in physics and engineering. It is used as a shielding gas in welding methods such as atomic hydrogen welding. H2 is used as the rotor coolant in electrical generators at power stations, because it has the highest thermal conductivity of any gas. Liquid H2 is used in cryogenic research, including superconductivity studies. Because H
2 is lighter than air, having a little more than 114 of the density of air, it was once widely used as a lifting gas in balloons and airships.
How is H2 used in electrical generators at power stations?
A: as the rotor coolant
Problem: Please answer a question about the following article about Greece:
The Greek Orthodox Church and the Ecumenical Patriarchate of Constantinople were considered by the Ottoman governments as the ruling authorities of the entire Orthodox Christian population of the Ottoman Empire, whether ethnically Greek or not. Although the Ottoman state did not force non-Muslims to convert to Islam, Christians faced several types of discrimination intended to highlight their inferior status in the Ottoman Empire. Discrimination against Christians, particularly when combined with harsh treatment by local Ottoman authorities, led to conversions to Islam, if only superficially. In the 19th century, many "crypto-Christians" returned to their old religious allegiance.[page needed]
Due to discrimination, some Christians converted to what religion?
A: Islam
Problem: Please answer a question about the following article about Political party:
Furthermore, in the case of far-right, far-left and regionalism parties in the national parliaments of much of the European Union, mainstream political parties may form an informal cordon sanitarian which applies a policy of non-cooperation towards those "Outsider Parties" present in the legislature which are viewed as 'anti-system' or otherwise unacceptable for government. Cordon Sanitarian, however, have been increasingly abandoned over the past two decades in multi-party democracies as the pressure to construct broad coalitions in order to win elections along with the increased willingness of outsider parties themselves to participate in government has led to many such parties entering electoral and government coalitions.
What has been increasingly abandoned in the past two decades?
A: Cordon Sanitarian
Problem: Please answer a question about the following article about New Delhi:
The Delhi Flying Club, established in 1928 with two de Havilland Moth aircraft named Delhi and Roshanara, was based at Safdarjung Airport which started operations in 1929, when it was the Delhi's only airport and the second in India. The airport functioned until 2001, however in January 2002 the government closed the airport for flying activities because of security concerns following the New York attacks in September 2001. Since then, the club only carries out aircraft maintenance courses, and is used for helicopter rides to Indira Gandhi International Airport for VIP including the president and the prime minister.
What type of aircraft was first used by the Delhi Flying Club after its founding?
A:
de Havilland Moth aircraft