Comprehensive Answer Key for MCQ Test
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Questions and Answers

How much work done it take to slide a create for a distance of 25 m along a loading dock by pulling on it with a 180 N force where the dock is at angle 45° from the horizontal?

  • 3.4341 × 10^3 J (correct)
  • 3.18198 × 10^3 J
  • 3.4341 × 10^4 J
  • 3.18198 × 10^2 J
  • Let f : R→R be a function such that f(0) = 1/π and f(x) = (e^x - 1)/x for x ≠ 0. Then

  • f(x) is not continuous at x = 0
  • f(x) is continuous but not differentiable at x = 0
  • None of these
  • f(x) is differentiable at x = 0 and f'(0) = π/2 (correct)
  • The value of the limit lim x→0 (1x + 2x + 3x + 4x) / 4 is

  • 1
  • 3!^(1/4) (correct)
  • 4!^(1/4)
  • 3^(11/31)
  • The value of m for which volume of the parallepiped is 4 cubic units whose three edges are represented by a = mi + j + k, b = i − j + k, c = i + 2j – k is

    <p>-1 (C)</p> Signup and view all the answers

    Consider the function f(x) = x^(2/3) (6 – x)^(1/3). Which of the following statement is false?

    <p>f has a point of inflection at x = 6 (A)</p> Signup and view all the answers

    For an invertible matrix A, which of the following is not always true?

    <p>A(adj(A))|≠1 (B)</p> Signup and view all the answers

    At how many points the following curves intersect y^2/9 + x^2/16 = 1 and x^2/4 + y^2/16 = 1

    <p>2 (B)</p> Signup and view all the answers

    The value of f(1) for f = (x^2 (y-4)^2) / (1-x) + 1 is

    <p>4 (C)</p> Signup and view all the answers

    A committee of 5 is to be chosen from a group of 9 people. The probability that a certain maried couple will either serve together or not at all is

    <p>4/9 (A)</p> Signup and view all the answers

    If x = 1 + √2 + √4 + 8 + 16 + 32, then (1 + 1/x)^4 is

    <p>16 (B)</p> Signup and view all the answers

    Which of the following number below, the smallest number which will be divided by 9, 10, 15 and 20 leaves the remainders 4, 5, 10 and 15, respectively

    <p>355 (C)</p> Signup and view all the answers

    Let A and B be two events defined on a sample space Ω. Suppose AC denotes the complement of A relative to the sample space Ω. Then the probability P(A∩B)~(A∩B)) equals

    <p>P(A)+P(B)-P(A∩B) (A)</p> Signup and view all the answers

    A speaks truth in 40% and B in 50% of the cases. The probability that they contradict each other while narrating some incident is:

    <p>1/2 (D)</p> Signup and view all the answers

    The points (1, 1/2) and (3, -1/2) are

    <p>On the same side of the line 2x + 3y = 6 (C)</p> Signup and view all the answers

    If (4, 3) and (12, 5) are the two foci of an ellipse passing through the origin, then the eccentricity of the ellipse is

    <p>√13/9 (D)</p> Signup and view all the answers

    For what values of a does the equation 6x^2 − xy + xy^2 = 0 represents two perpendicular lines and two lines inclined at angle of π/4

    <p>-6 and 1 (C)</p> Signup and view all the answers

    The value of Lt x→0 (e^x - e^-x - 2x)/(1-cos x)

    <p>0 (A)</p> Signup and view all the answers

    The number of one-one functions f : {1,2,3} → {a, b, c, d, e} is

    <p>60 (B)</p> Signup and view all the answers

    If one AM (Arithmetic mean) ‘a' and two GM's (Geometric means) p and q be inserted between any two positive numbers, the value of p^3 + q^3 is

    <p>2pq/a (D)</p> Signup and view all the answers

    A coin is thrown 8 number of times. What is the probability of getting a head in an odd number of throw?

    <p>3/4 (C)</p> Signup and view all the answers

    The value of tan(π/4 + θ)tan(3π/4 + θ) is

    <p>-1 (B)</p> Signup and view all the answers

    Let C donote the set of all tuples (x, y, z) which satisfy x^2 – 2y = 2 where x and y are natural numbers. What is the cardinality of C?

    <p>2 (C)</p> Signup and view all the answers

    The number of distinct values of a for which the vectors a²i + j+k,i+2²j+k and i + j+²k are coplanar is

    <p>6 (C)</p> Signup and view all the answers

    Study Notes

    Answer Key

    • The provided text contains an answer key for a test.
    • The key includes multiple-choice questions (MCQs).
    • The answers are labeled with question numbers and associated letter options (e.g., 01. (1)).
    • The questions cover various subjects indicated in the headers (e.g., Mathematics, Analytical Ability, Computer Awareness, General English).

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    Description

    This answer key provides detailed responses for a multiple-choice question test covering a range of subjects including Mathematics, Analytical Ability, Computer Awareness, and General English. Each answer is clearly labeled with question numbers and corresponding letter options for easy reference.

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