Top 150+ Solved Essential of Formal Logic MCQ Questions Answer
Q. Discovering a new ------- is permissible in inductive reasoning.
a. cause
b. effect
c. assumption
d. evidence.
Q. Inductive arguments are properly characterised as
a. valid-invalid
b. strong-weak
c. definite-indefinite
d. certain-uncertain.
Q. Induvtive method is identified with
a. religious activity
b. scientific activity
c. moral activity
d. aesthetic activity.
Q. A single ------ is enough to prove the inductive conclusion false.
a. intuition
b. assumption
c. counter-example
d. concept.
Q. An advantage of inductive reasoning is
a. to sustain existing belifs
b. to formulate valid arguments
c. to create aesthetic sense
d. to frame future expectations.
Q. Truth or Falsehood may be predicated of --------.
a. arguments
b. inferences
c. propositions
d. syllogism.
Q. Validity or Invalidity may be predicated of ---------.
a. deductive arguments
b. propositions
c. terms
d. concepts.
Q. The falsehood of a valid deductive argument’s conclusion guarantees that
a. the argument is sound
b. atleast one of the premise is false
c. premises are true
d. the validity is uncertain.
Q. If it is possible for the premises of a deductive argument to be true and its conclusion to be false, that argument is
a. valid
b. invalid
c. indescribable
d. soun
Q. The claim of an inductive argument is that premises provide---------- for the conclusion.
a. invalidity
b. absolute evidence
c. no evidence
d. some evidence
Q. The following argument: Aristotle is human and mortal. Bacon is human and mortal. Castro is human and mortal. Descartes is human and mortal. Therefore all humans are mortal. is an example for --------- argument.
a. deductive
b. inductive
c. syllogistic
d. deduction-induction combine
Q. A valid deductive argument with true premises is called a ------ argument.
a. sound
b. unsound
c. fallacious
d. dilemma.
Q. A deductive argument is sound if and only if it is
a. valid and all its premises are true
b. invalid and all its premises are true
c. is valid and one of the premise is false
d. is valid and its conclusion is false.
Q. Deduction and Induction are two main forms of---------.
a. beliefs
b. concepts
c. reasoning
d. assumptions.
Q. Deductive logic is also known as
a. intuitive logic
b. material logic
c. formal logic
d. scientific logic.