4216: Which of the following pairs are correctly matched ?
I. Idukki : Thermal power station
II. Sabarigiri : Hydro-electric project
III. Ghatprabha : Irrigation project
IV. Ramganga : Multipurpose project
Select the correct answer by using the codes given below :
Codes :
(a) II, III and IV
(b) I, II, III and IV
(c) III and IV
(d) I and II
4217: Cobalt-60 is commonly used in radiation therapy because it emits
(a) alpha rays.
(b) beta rays.
(c) gamma rays.
(d) X-rays.
4218: What happens when alcohol is taken in excess?
(a) It destroys the liver
(b) It produces inflammation of the stomach
(c) It causes the heart to become weak
(d) All of the above
4219: In the above figure, ABCD is a cyclic quadrilateral, AB = BC and angle BAC = 70°, then angle ADC is
(a) 40°
(b) 80°
(c) 110°
(d) 140°
4220: The following are the rulers of the slave dynasty:
I. Ghiyas-ud-din Balban
II. Iltutmish
III. Qutb-ud-din Aibak
IV. Nasir-ud-din Mahmud
The correct order in which these sultans ruled over India is
(a) II, III, I, IV
(b) I, IV, II, III
(c) IV, I, II, III
(d) III, II, IV, I