TS Polycet (Polytechnic) 2018 Previous Question Paper with Answers And Model Papers With Complete Analysis

TS Polycet (Polytechnic) 2018 Previous Question Paper with Answers And Model Papers With Complete Analysis
TS Polycet (Polytechnic) Previous Year Question Papers And Model Papers:
While preparing for TS Polycet (Polytechnic), candidates must also refer to the previous year question papers of the same. Scoring well in TS Polycet (Polytechnic) and understanding weaknesses and strengths in the respective sections.

TS Polycet (Polytechnic) Previous Year Question Papers can be found on this page in PDF format. Students taking the exam to get into some of the best Polytechnic colleges/institutes in the state of Andhra Pradesh may practice these papers to get a clear idea of the structure of the exam, marking scheme, important topics, etc.


Section — I
MATHEMATICS




Q). ab (c) = a (bc) is called property.
A) Associative
B) Inverse
C) Identity
D) None

View Answer
A) Associative

Q). √5 +√7 is ……………….. number.
A) Natural
B) Rational
C) Integer
D) an Irrational

View Answer
D) an Irrational
Explanation: Sum of two irrational numbers is an irrational number.

Q). (log9\sqrt{3\sqrt{3\sqrt3}}) log10 0.01 =
A) (7/8)1
B) (7/16)0
C) (1/16)-2
D) (1/8)2

View Answer
Explanation: A, B, C, D

Q). Exponential form of log464 = 3 is
A) 34 = 64
B) 43 = 64
C) 42 = 81
D) None

View Answer
C) 42 = 81
Explanation: log464 = 3 ⇒ 43 = 64

Q). \sqrt{20+\sqrt{20+\sqrt{20+......\infty}}} =
A) 1
B) 3
C) 5
D) 6

View Answer
C) 5
Explanation: Let x = \sqrt{20+\sqrt{20+\sqrt{20+......\infty}}}
X = \sqrt{20+x} ⇒ x2 = 20+x
x2 -x – 20 = 0 => x2 – 5x + 4x – 20 = 0
x(x-5) + 4(x-5) = 0=> (x-5) (x + 4) = 0
=> x = 5

Q). From the following Venn-diagram B – A =…………………….

A) {1,2, 3}
B) {4, 5}
C) {6, 7}
D) None

View Answer
C) {6, 7}
Explanation: From the Venn-diagram
B -A = {4,5,6,7} -{1, 2,3,4,5}
= {6, 7}

Q). If A = {a, b, c, d}, then the number of subsets for A is …………………….
A) 5
B) 6
C) 16
D) 65

View Answer
C) 16
Explanation: Given A = {a, b, c, d} => n(A) = 4

No. of subsets = 2n = 24 = 16

Q). If α,β,ɣ are the zeroes of the polynomial
f(x) = ax3 + bx2 + cx + d, then \frac1\alpha+\frac1\beta+\frac1\gamma
A) 1/d
B) 1/c
C) c/d
D) –c/d

View Answer
D) –c/d
Explanation: Given f(x) = ax3 + bx2 + cx + d
= \frac1\alpha+\frac1\beta+\frac1\gamma
= \frac{\alpha\beta+\;\beta ɣ+\;ɣ\alpha}{\alpha\beta ɣ\;}
= \frac{\displaystyle\frac ca}{\displaystyle-\frac da}
=-c/d

Q). A quadratic polynomial whose zeroes are 5 and -2 is ………………
A) x2 + 5x-2
B) x2 + 3x-10
C) x2-3x-10
D) x2-2x + 5

View Answer
C) x2-3x-10
Explanation: α = 5 β = -2
x2 – (α + β) X + αβ = 0
⇒ x2 – (5 – 2) x + 5 (-2) = 0
⇒ x2-3x-10 = 0

Q). The lines represented by 5x + 7y – 14 = 0 and 10x + 3y – 8 = 0 are…….. lines.
A) Coincident
B) Vertical
C) Parallel
D) Intersecting

View Answer
D) Intersecting
Explanation: a1 = 5, b1 = 7, C1 = —14, a2 = 10, b2 = 3 and c2 = -8
\frac{a_1}{a_2}\neq\frac{\displaystyle b_1}{\displaystyle b_2}

∴Given lines are intersecting lines.
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