Competitive Exams: Philosphy MCQs (Practice-Test 73 of 90)

  1. When p is true, q is false and r is true, then which one of the following expressions is false?

    1. p-q

    2. q-r

    3. p-r

    4. q-p

  2. Consider the following sentences:

    1. The computer can solve many problems, but it has no insight.

    2. The computer can solve many problems and it has no insight.

    Which one of the following is correct?

    1. It is possible for sentence (1) to be true and sentence (2) to be false

    2. The sentence (2) does not logically imply the sentence

    3. The same truth-functional connective is used in the symbolization of the two sentences

    4. The ‘but’ in sentence (1) is not truthfunctional

  3. How is ‘England and Germany will both not be winners’ symbolized in modern logic?

    1. ~ E-~ G

    2. ~ (E. G)

    3. ~ E. ~ G

    4. ~ E-G

  4. Consider the syllogism: All rich people have a flamboyant lifestyle. All people ambitious enough to have a flamboyant lifestyle are vain. Therefore, some vain people are rich. The syllogism commits which fallacy?

    1. The fallacy of illicit major

    2. The fallacy of illicit minor

    3. The fallacy of four terms

    4. The fallacy of exclusive premises

  5. If Germany wins, England will be upset. England is upset. Therefore, Germany won. What fallacy is involved in the above argument?

    1. Denying the antecedent

    2. Undistributed middle

    3. Affirming the consequent

    4. Insufficient data to arrive at a conclusion

  6. Match List-I with List-II and select the correct answer using the code given below the Lists:

    List-I List-II
    1. Fallacy of exclusive premises

    2. Fallacy of drawing an affirmative conclusion

    3. Existential fallacy

    4. Fallacy of undistributed middle

    1. All men are mortal. All kings are mortal-All kings are men.

    2. All men are mortal. All kings are men-Some kings are mortal.

    3. No men are honest. No kings are men-Some kings are honest.

    4. No men are honest. All kings are men-All kings are honest.

    • A
    • B
    • C
    • D
      • 2
      • 1
      • 3
      • 4
      • 3
      • 4
      • 2
      • 1
      • 2
      • 4
      • 3
      • 1
      • 3
      • 1
      • 2
      • 4
  7. According to modern logical interpretation, ‘All trespassers are liable to be prosecuted’ is equivalent with which one of the following assertions?

    1. All members of the class trespassers who exist are liable to be prosecuted

    2. If there is a trespasser, then he is liable to be prosecuted

    3. Some members of the class trespassers who exist are liable to be prosecuted

    4. Either there is a trespasser or he is liable to be prosecuted

  8. Consider the argument and the Venn diagram given below: All murderers prosper before doom. Some murderers are politicians. Therefore, some politicians prosper before doom. Where D = the class of people who prosper before doom M = the class of murderers P = the class of politicians Which one of the following is correct?

    1. The first premise is not correctly represented in the Venn diagram

    2. The second premise is not correctly represented in the Veun diagram

    3. The conclusion fails to be correctly represented in the Venn diagram

    4. The Venn diagram shows that the argument is valid

  9. A valid standard form categorical syllogism in the Aristotelian logic differs from the modern interpretation in permitting which one of the following?

    1. To contain more than three terms

    2. To leave the middle term to be undistributed in all the premises

    3. To draw particular conclusion from two universal premises

    4. To draw a conclusion from two negative premises