Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Mechanical Engineering ' And exam conducted in the year 2023. And Question paper code was '129/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
129/2023
Maximum : 100 marks
Time : 1 hour and 30 minutes
1. ‘If D, and D, are two diagonal matrices, then :
(A) _ D, D, isa diagonal matrix
൯ D,D,=D,D,
(C) both of the above
൯) D, D, may or may not be defined
ഉ. The value of the determinant of a square matrix of order ‘4’ is the sum of how many number
of terms?
(A) 4 (B) 8
(0 12 (D) 24
3. If Ais any square matrix of order ‘n’, then Adj(Adj A) is:
(A) [4] ൫ ൮൧4
(© (47 رم ۵۸
4. The value of sin cos + جع گ وم 122
4 12 4 12
4B
ಉ 1 م
൨ 1 1
© त्र (0) Ve
5. The value of (0.01) - (0.99); correct to 5 decimal places is :
(A) 0.02131
(B) 0.01000
(C) 0.04203
(D) None of the above
[P.T.0.]