PPSC Economics Full Book MCQ Test With Answers

PPSC Economics Full Book MCQ Test

Sr. # Questions Answers Choice
1 In his description of an idealized city state Plato did not advocate. Class specialization Self regulation of markets Flat money to facilitate exchange That all philosopher king rulers embrace communist styles of living.
2 The notation that communism should be imposed on a nation's rulers so that they would neither be tempted by possessions nor diverted from the task of wise governance was proposed by. Plato Aristotle Xenophon Protagoras
3 The cliche that "The punishment should fit the crime " originated in the writings of. Plato Thomas Aquinas Jeremy Benithm David hume
4 The word economics derives from an early Greek term that means management of a. Business Government House hold Financial institution
5 AB = BA = 1 , then B is said to Ad joint of matrix of A Inverse matrix of A Determinant of A Cofactor of a
6 Ordered Pairs of two sets are called. Elements Function Cartesian product None of the above
7 The set of 'stars in the sky' is an example of Countable set Infinite set Finite set unit set
8 if A = A , then A is Symmetric matrix Skew symmetric matrix Identity matrix Orthogonal matrix
9 If matrix A is of m x n dimension, then A will be n x m dimension m x n dimension n x p dimension m x m dimension
10 The elements in the Horizontal line in a matrix is called. Columns Rows Elements Diagonal
11 If B is a subset of A ,then A is a Super set of B Sub set of B Empty set of B Universal set of B
12 Relation between two numbers or variables are called. Function Binary relation Inverse relation None of the above
13 Matrix multiplication does not satisfy Associative law Distributive law Commutative law None of the above
14 For any square matrix a of order 'n'a (Ad)A) is equal to. (Ad) A) A Determinant A Rank of A Both a and b
15 Th transpose of the cofactor matrix is called. Adjoin of the matrix Power of a matrix Minor of the matrix Rank of a matrix
16 If A and B are symmetric matrix, then AB- BA is. Symmetric Skew symmetric matrix Idempotent matrix Orthogonal matrix
17 A square matrix a such that A2 = a is called. Orthogonal matrix Skew symmetric matrix Idempotent matrix Singular matrix
18 If each element of a raw or column is a sum of two elements, the determinant can be expressed as the Sun of two determinants Difference of two determinants Multiplication of two determinants Division of two determinants
19 If each element of a raw of column of a square matrix A is zero, then the value of the determinant. is. Equal One Zero None of these
20 If every element of a raw of column of a square matrix A is zero, then the value of the determinant. is. Equal One zero Not equal
21 If every elements of a raw or column of a square matrix A is zero, then the value of the determinant . Equal Zero One Negative related
22 The determinant of a matrix and that of its transpose are Equal Zero One Negatively related
23 The signed minor of the matrass A is called. Adjoin Co factor Minor Rank
24 If A is a square matrix of order ' n' and lis the unit matrix of the same order then A 1 is equal to. A 1A 1 Both a and b
25 If matrix A is matrix of order n x m and B is another matrix of order m x n, then BA will be the matrix of order. n x m m x n n x n m x m
26 For any square matrix A of order 'n' a +A is. Skew symmetric Non skew symmetric Symmetric Non symmetric
27 If A and B are symmetric matrices, then A +B is Symmetric Non symmetric Skew symmetric Non skew symmetric
28 A diagonal matrix whose diagonal elements are equal is called. Unit matrix Singular matrix Scalar matrix Non singular matrix
29 A square matrix a of order 'n' is called a diagonal matrix if its non diagonal elements are. zero Non zero One None of the above
30 A matrix with all elements zero other than all the diagonals is called. Diagonal matrix Orthogonal matrix Unit matrix Column vector
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