1816: With reference to the history of Indian rock-cut architecture, consider the following statements:

1. The caves at Badami are the oldest surviving rock-cut caves in India.

2. The Barabar rock-cut caves were originally made for Ajivikas by Emperor Chandragupta Maurya.

3. At Ellora, caves were made for different faiths.

Which of the statements given above is/are correct?

(a) 1 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
1817: Which one of the following statements is not correct?

(a) The presence of NaCl increases the rate of setting of Plaster of Paris

(b) Gypsum is added to the cement to slow down its rate of setting

(c) All alkaline earth metals form hydrated salts

(d) Barium and Strontium are found free in nature
1818: The messages received by and transmitted from the brain to the various parts of the body take the form of:

(a) Nervous impulses

(b) Chemical impulses

(c) Mechanical impulses

(d) Automatic impulses
1819: Which one of the following pairs is correctly matched ?

(a) Guru Amar Das : Miri and Piri

(b) Guru Arjan Dev : Adi Granth

(c) Guru Ram Das : Dal Khalsa

(d) Guru Gobind Singh : Manji
1820: Consider the following statements:

1. Liquefied Natural Gas (LNG) is liquefied under extremely cold temperatures and high pressure to facilitate storage or transportation in specially designed vessels.

2. First LNG terminal in India was built in Hassan.

3. Natural Gas Liquids (NGL) are separated from LPG and these include ethane, propane, butane and natural gasoline.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3