4576: Iron ore mines are located in which of the following group of places?
(a) Bokaro, Balaghat, Hazaribagh
(b) Singhbhum, Monghyr, Singareni
(c) Jharia, Raniganj, Wardha
(d) Singhbhum, Mayurbhani, Keonihar
4577: Barium in a suitable form is administered to patients before an X-ray examination of the stomach, because
(a) barium allows X-rays to pass through the stomach on account of its transparency to X-rays
(b) barium compound, like magnesium sulphate helps in cleaning the stomach before X-ray examination
(c) barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture
(d) barium salts are white in colour and this helps the stomach to appear clearly in contrast with other regions in the picture
4578: When it is noon along 82° 30' E longitude along what degree of longitude it will be 6.30 am ?
(a) along 165° E
(b) along 67°30' W
(c) 0° E or W
(d) along 82° 30' W
4579: In the context of Indian economy, 'Open Market Operations' refers to
(a) borrowing by scheduled banks from the RBI
(b) lending by commercial banks to industry and trade
(c) purchase and sale of government securities by the RBI
(d) None of the above
4580: Which of the following is a most likely consequence of implementing the 'Unified Payments Interface (UPI)'?
(a) Mobile wallets will not be necessary for online payments.
(b) Digital currency will totally replace the physical currency in about two decades.
(c) FDI inflows will drastically increase.
(d) Direct transfer of subsidies to poor people will become very effective.