711: Which are the materials generally employed as solder in soldering operation in elections.

(a) Iron and tin

(b) Lead and tin

(c) Aluminum and lead

(d) Aluminum and iron

712: Which of the following is the chief characteristic of 'mixed farming'?

(a) Cultivation of both cash crops and food crops

(b) Cultivation of two or more crops in the same field

(c) Rearing of animals and cultivation of crops together

(d) None of the above
713: Assertion (A) :

The origin of feudal system in ancient India can be traced to military campaigns.

Reason (R) :

There was considerable expansion of the feudal system during the Gupta period.

(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
714: The term nishka, which meant an ornament in the Vedic period, was used in later times to denote a/an

(a) weapon

(b) agricultural implement

(c) script

(d) coin
715: The following persons came to India at one time or another :

I. Fa-Hien
II. I-Tsing
III. Megasthenese
IV. Hieun-Tsang

The correct chronological sequence of their visits is :

(a) III, I, II, IV
(b) III, I, IV, II
(c) I, III, II, IV
(d) I, III, IV, II