QUES: In June, the fleets transported the Allied expeditionary forces to Varna, in support of the Ottoman operations on the Danube; in September they again transported the armies, this time to the Crimea. The Russian fleet during this time declined to engage the allies, preferring to maintain a "fleet in being"; this strategy failed when Sevastopol, the main port and where most of the Black Sea fleet was based, came under siege. The Russians were reduced to scuttling their warships as blockships, after stripping them of their guns and men to reinforce batteries on shore. During the siege, the Russians lost four 110- or 120-gun, three-decker ships of the line, twelve 84-gun two-deckers and four 60-gun frigates in the Black Sea, plus a large number of smaller vessels. During the rest of the campaign the allied fleets remained in control of the Black Sea, ensuring the various fronts were kept supplied.
How many 60-gun frigates did the Russians lose in the Black Sea?

ANS: four

QUES: In 1845, the Neapolitan architect Gaetano Genovese installed in the Royal Palace of Caserta the "Flying Chair", an elevator ahead of its time, covered with chestnut wood outside and with maple wood inside. It included a light, two benches and a hand operated signal, and could be activated from the outside, without any effort on the part of the occupants. Traction was controlled by a motor mechanic utilizing a system of toothed wheels. A safety system was designed to take effect if the cords broke. It consisted of a beam pushed outwards by a steel spring.
What Neapolitan architect created the "Flying Chair" elevator?

ANS: Gaetano Genovese

QUES: There are two levels of service provided a free service to civilians and licensed service to the Chinese government and military. The free civilian service has a 10-meter location-tracking accuracy, synchronizes clocks with an accuracy of 10 nanoseconds, and measures speeds to within 0.2 m/s. The restricted military service has a location accuracy of 10 centimetres, can be used for communication, and will supply information about the system status to the user. To date, the military service has been granted only to the People's Liberation Army and to the Military of Pakistan.
What types of services will be offered by the BeiDou system?

ANS: a free service to civilians and licensed service to the Chinese government and military

QUES: An unconventional power succession system was established (rota system) whereby power was transferred to the eldest member of the ruling dynasty rather than from father to son, i.e. in most cases to the eldest brother of the ruler, fomenting constant hatred and rivalry within the royal family.[citation needed] Familicide was frequently deployed in obtaining power and can be traced particularly during the time of the Yaroslavichi rule (sons of Yaroslav) when the established system was skipped in the establishment of Vladimir II Monomakh as the Grand Prince of Kiev,[clarification needed] in turn creating major squabbles between Olegovichi from Chernihiv, Monomakhs from Pereyaslav, Izyaslavichi from Turov/Volhynia, and Polotsk Princes.[citation needed]
Who developed familicide?

ANS:
unanswerable