4081: With reference to Indian history, which of the following is/are the essential elementy elements of the feudal system?
1. A very strong centralized political authority and a very weak provincial or local political authority
2. Emergence of administrative structure based on control and possession of land
3. Creation of lord-vassal relationship between the feudal lord and his overlord
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
4082: Which one of the following best describes the term "Merchant Discount Rate" sometimes seen in news ?
(a) The incentive given by a bank to a merchant for accepting payments through debit cards pertaining to that bank.
( b) The amount paid back by banks to their customers when they use debit cards for financial transactions for purchasing goods or services.
(c) The charge to a merchant by a bank for accepting payments from his customers through the bank's debit cards.
(d) The incentive given by the Government, to merchants for promoting digital payments by their customers through Point of Sale (PoS) machines and debit cards.
4083: Which of the following is not an alloy?
(a) Brass
(b) Bronze
(c) Steel
(d) Zinc
4084: The Upanishads are collectively known as
(a) Vedangas
(b) Vedanta
(c) Sruti
(d) Smriti
4085: When water is heated from zero Degree Celsius to Ten Degree Celsius, its volume
(a) increases
(b) decreases
(c) does not change
(d) first decreases and then increases