House of Wisdom (Bayt-ul-Hikamah) was established by?

A. Al’Mansoor
B. Al’Ma’mun
C. Harun Rasheed
D. Abdul Malik

Baghdad city was established as Capital of Abbasid Dynasty by?

A. Al’Mansoor
B. As’Saffah
C. Harun Rasheed
D. Al’Ma’mun

 

On the suggestion of whom, Holy Prophet (P.B.U.H) released the Prisoners of Ghazwa-e-Badar?

A. Hazrat Abu Bakar
B. Hazrat Umar Farooq
C. Hazrat Ali-ulMurtaza
D. Hazrat Ameer Hamza

The period of reign of Abū Isḥāq Muḥammad ibn Hārūn al-Rashīd is from?

A. 833-842
B. 750-850
C. 700-800
D. 687-792

What is the Original Name of Muʿtaṣim bi’llāh?

A. Abu Ayub ibn Rashid
B. Abū Isḥāq Muḥammad ibn Hārūn al-Rashīd
C. Abu Sufyan ibn Daud
D. Abu Ansar ibn Usman

The Mosque of Prophet (PBUH) was damaged due to fire in the reign of?

A. Shahjahan
B. Aurangzeb
C. Motasim Billah
D. Razia Sultana

Sound travels at the fastest speed in?

A. steel
B. water
C. air
D. vacuum

Light travels at the fastest speed in?

A. glass
B. water
C. hydrogen
D. vacuum

Railway tracks are banked on curves?

A. necessary centrifugal force may be obtained from the horizontal component weight of the train
B. to avoid frictional force between the tracks and wheels
C. necessary centripetal force may be obtained from the horizontal component of the weight of the train
D. the train may not fly off in the opposite direction