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Delhi Police SI Series — practice questions — page 3

Explore 72 free Series questions in Delhi Police SI Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Series questions and exercises with answers

Showing questions 61–72 of 72.

Deduction or induction?Read the answer and worked solution →Order the steps: test a syllogismRead the answer and worked solution →True or false: reasoning from two premisesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Flip and pair: letter with statementRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Deduction against inductionRead the answer and worked solution →Tap every statement that follows from 'All cats are animals'Read the answer and worked solution →Complete the conversion ruleRead the answer and worked solution →Which reversal is safe?Read the answer and worked solution →

Worked practice questions

Deduction or induction?

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Items
  1. Item
    The conclusion follows necessarily
    Category
    Deduction
  2. Item
    Argues from general to particular
    Category
    Deduction
  3. Item
    Adds nothing the premises did not contain
    Category
    Deduction
  4. Item
    Generalises from observed cases
    Category
    Induction
  5. Item
    Argues from particular to general
    Category
    Induction
  6. Item
    The conclusion may still be wrong
    Category
    Induction
Categories
  1. Item
    Deduction
  2. Item
    Induction
Deduction draws out what the premises already contain induction generalises beyond them. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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Order the steps: test a syllogism

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Steps
  1. Write each premise in one of the forms A, E, I or O
  2. Identify the subject and predicate of each
  3. Note which terms are distributed by each premise
  4. Check whether the conclusion's terms are licensed by the premises
  5. If any term is distributed in the conclusion but not in a premise, reject it
Name the forms, check what each distributes then see whether the conclusion is licensed. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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True or false: reasoning from two premises

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Questions
  1. Statement is true
    Yes
    Statement
    A conclusion must not distribute a term the premises left undistributed.
  2. Statement is true
    No
    Statement
    'Some' statements alone can prove a universal conclusion.
  3. Statement is true
    Yes
    Statement
    A valid deduction's conclusion is contained in its premises.
  4. Statement is true
    Yes
    Statement
    True premises with a valid form give a true conclusion.
  5. Statement is true
    No
    Statement
    A valid argument can have true premises and a false conclusion.
Two particular premises alone never license a conclusion, which is why exam sets always include a universal. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.

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