MCQOPTIONS
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MCQOPTIONS
This section includes 1405 Mcqs, each offering curated multiple-choice questions to sharpen your Logical and Verbal Reasoning knowledge and support exam preparation. Choose a topic below to get started.
| 851. |
“If a statement is true, then it is implied by any statement whatever” issymbolized as |
| A. | p Ͻ (p Ͻ q) |
| B. | p Ͻ (q Ͻ p) |
| C. | ̴p Ͻ (p Ͻ q) |
| D. | ̴p Ͻ (q Ͻ p) |
| Answer» C. ̴p Ͻ (p Ͻ q) | |
| 852. |
An argument form is valid if and only if it’s expression in the form of a conditionalstatement is …………… |
| A. | a contradiction |
| B. | a biconditional |
| C. | a tautology |
| D. | material implication |
| Answer» D. material implication | |
| 853. |
. ̴( p . q) is logically equivalent to ………………………………….. |
| A. | p v ̴q |
| B. | ̴p . ̴q |
| C. | ̴p v ̴q |
| D. | ̴p v q |
| Answer» D. ̴p v q | |
| 854. |
…………………. statements have the same meaning and may be substituted for oneanother |
| A. | materially equivalent |
| B. | logically equivalent |
| C. | tautologous |
| D. | self-contradictory |
| Answer» C. tautologous | |
| 855. |
Two statements are ………………… when their material equivalence is a tautology |
| A. | self-contradictory |
| B. | contingent |
| C. | logically equivalent |
| D. | materially implying |
| Answer» D. materially implying | |
| 856. |
Statement forms that have both true and false statements among theirsubstitution instances are called …………………………………………….. |
| A. | tautologous statement forms |
| B. | contingent statement forms |
| C. | self-contradictory statement forms |
| D. | specific statement forms |
| Answer» C. self-contradictory statement forms | |
| 857. |
A statement form that has only true substitution instances is called …………………… |
| A. | a “ tautologous statement form “ or a “ tautology” |
| B. | a self-contradictory statement form or contradiction |
| C. | a contingent statement form |
| D. | specific statement form |
| Answer» B. a self-contradictory statement form or contradiction | |
| 858. |
’statement form from which the statement results by substituting a differentsimple statement for each different statement variable’ is called …………………….. |
| A. | the specific form of a given argument |
| B. | tautology |
| C. | contradiction |
| D. | the specific form of a given statement |
| Answer» E. | |
| 859. |
………………………… is any sequence of symbols containing statement variables butno statements, such that when statements are substituted for the statement\ variables-the same statement being substituted for the same statement variable throughout- the result is a statement |
| A. | an argument form |
| B. | specific form of argument |
| C. | a statement form |
| D. | argument |
| Answer» D. argument | |
| 860. |
Refutation by logical analogy is based on the fact that any argument whosespecific form is an invalid argument form is ……………………….. |
| A. | sound |
| B. | a contradiction |
| C. | an invalid argument. |
| D. | a valid argument |
| Answer» D. a valid argument | |
| 861. |
In case an argument is produced by substituting a different simple statement foreach different statement variable in an argument form, that argument form is called …………………… |
| A. | the “specific form” of that argument |
| B. | a “ substitution instance” of that argument form |
| C. | valid argument |
| D. | invalid argument |
| Answer» B. a “ substitution instance” of that argument form | |
| 862. |
If the specific form of a given argument has any substitution instance whosepremises are true and whose conclusion is false, then the given argument is. |
| A. | valid |
| B. | invalid |
| C. | valid or invalid |
| D. | sound |
| Answer» C. valid or invalid | |
| 863. |
Any argument that results from the substitution of statements for statementvariables in an argument form is called ……………………………… |
| A. | invalid argument |
| B. | valid argument |
| C. | the specific form |
| D. | a “ substitution instance” of that argument form |
| Answer» E. | |
| 864. |
…………………………… can be defined as an array of symbols containing statementvariables but no statements, such that when statements are substituted for statement variables- the same statement being substituted for the same statement variable throughout – the result is an argument |
| A. | specific statement form |
| B. | a statement form |
| C. | an argument form |
| D. | an argument |
| Answer» D. an argument | |
| 865. |
Ramesh and Dinesh will both not be elected. |
| A. | a v ̴b |
| B. | ̴a . ̴b |
| C. | ̴( a . b ) |
| D. | ̴a v b |
| Answer» C. ̴( a . b ) | |
| 866. |
An argument can be proved invalid by constructing another argument of thesame form with ……………………. |
| A. | false premises and false conclusion |
| B. | true premises and false conclusion |
| C. | true premises and true conclusion |
| D. | false premises and true conclusion |
| Answer» C. true premises and true conclusion | |
| 867. |
‘The disjunction whose first disjunct is the conjunction of p and q and whosesecond disjunct is r ‘ is symbolized as ……………………….. |
| A. | p v ( q . r ) |
| B. | ( p vq ) . r |
| C. | p . ( q v r ) |
| D. | ( p . q ) v r |
| Answer» E. | |
| 868. |
‘ A and B will not both be selected ’ is symbolized as ……………………….. |
| A. | ̴( a . b ) |
| B. | ̴a v b |
| C. | a v ̴b |
| D. | ̴a . ̴b |
| Answer» B. ̴a v b | |
| 869. |
The negaton of A V B is symbolized as ……………… |
| A. | ̴a v ̴b |
| B. | ̴( a v b ) |
| C. | ̴a v b |
| D. | a v ̴b |
| Answer» C. ̴a v b | |
| 870. |
‘ q if p ‘ is symbolized as………………………………. |
| A. | ‘q Ͻ p’ |
| B. | ‘p ≡ q’ |
| C. | ‘p v q’ |
| D. | ’ p Ͻ q ‘ |
| Answer» E. | |
| 871. |
’ The conjunction of p with the disjunction of q with r’, is symbolized as ……. |
| A. | ( p vq ) . r |
| B. | ( p . q ) v r |
| C. | p . ( q v r ) |
| D. | p v ( q . r ) |
| Answer» D. p v ( q . r ) | |
| 872. |
“it is not the case that the antecedent is true and the consequent is false” issymbolized as………………………………………. |
| A. | ̴( p . ̴q ) |
| B. | p . ̴q |
| C. | ̴p . ̴q |
| D. | ̴p . q |
| Answer» B. p . ̴q | |
| 873. |
No real connection between antecedent and consequent is suggested by ………… |
| A. | decisional implication |
| B. | material implication |
| C. | causal implication |
| D. | definitional implication |
| Answer» C. causal implication | |
| 874. |
……………………….. is regarded the common meaning that is part of the meaning ofall four different types of implication symbolized as “ If p , then q” |
| A. | ̴p . q |
| B. | ̴p . ̴q |
| C. | ̴( p . ̴q ) |
| D. | p . ̴q |
| Answer» D. p . ̴q | |
| 875. |
’If you study well, then you will pass the examination’ is an example for …………… |
| A. | implication |
| B. | bi-conditional |
| C. | disjunction |
| D. | conjunction |
| Answer» B. bi-conditional | |
| 876. |
For a conditional to be true the conjunction “ p. ̴q “ must be ………………. |
| A. | true or false |
| B. | true |
| C. | false |
| D. | undetermined. |
| Answer» D. undetermined. | |
| 877. |
A conditional statement asserts that in any case in which it’s antecedent is true,it’s consequent is …………………………… |
| A. | not true |
| B. | true or false |
| C. | false |
| D. | true also |
| Answer» E. | |
| 878. |
Gopal is either intelligent or hard working’ is an example for ………………………… |
| A. | bi-conditional |
| B. | implication |
| C. | inclusive or weak disjunction |
| D. | exclusive or strong disjunction |
| Answer» D. exclusive or strong disjunction | |
| 879. |
‘Today is Thursday or Saturday’ is an example for……………………………….. |
| A. | implication |
| B. | exclusive disjunction |
| C. | inclusive disjunction |
| D. | bi conditional |
| Answer» C. inclusive disjunction | |
| 880. |
The dot “ . ”symbol is…………………………………….. |
| A. | a truth-functional operator |
| B. | a statement variable |
| C. | propositional function |
| D. | a truth-functional connective |
| Answer» E. | |
| 881. |
The curl “ ̴“ is …………………………………………………….. |
| A. | propositional function |
| B. | a statement variable |
| C. | a truth-functional connective |
| D. | a truth-functional operator |
| Answer» E. | |
| 882. |
Inclusive or weak disjunction is false only in case ………………………………………………. |
| A. | both of it’s disjuncts are false |
| B. | at least one disjunct is false |
| C. | both disjuncts are true |
| D. | none of the above |
| Answer» B. at least one disjunct is false | |
| 883. |
A conjunction is true if and only if ………………………………………. |
| A. | at least one conjunct is true |
| B. | both of it’s conjuncts are true |
| C. | both conjuncts are false |
| D. | none of the above |
| Answer» C. both conjuncts are false | |
| 884. |
…………………………..Symbol is used for bi –conditional |
| A. | the tilde “ ~ ” |
| B. | ”v” |
| C. | ” Ͻ” |
| D. | “ ≡ “ |
| Answer» E. | |
| 885. |
………………………….. Symbol is used for conjunction |
| A. | the dot “.” |
| B. | the tilde “ ~ ” |
| C. | the vel ”v” |
| D. | the horse shoe” Ͻ” |
| Answer» B. the tilde “ ~ ” | |
| 886. |
………………………….. Symbol is used for weak disjunction |
| A. | the vel ”v” |
| B. | the dot “.” |
| C. | the horse shoe” Ͻ” |
| D. | the tilde “ ~ ” 48. ………………………….. symbol is used for negation |
| Answer» B. the dot “.” | |
| 887. |
A compound proposition whose truth-value is completely determined by thetruth-values of it’s component statements is called ……………………. |
| A. | bi -conditional |
| B. | non- truth-functional |
| C. | conditional |
| D. | truth-functional |
| Answer» E. | |
| 888. |
The phrase “if and only if” is used to express………………………………………………………. |
| A. | sufficient condition |
| B. | both sufficient and necessary condition |
| C. | necessary condition |
| D. | no condition |
| Answer» C. necessary condition | |
| 889. |
Conditional statement is also called…………………………………. |
| A. | implication |
| B. | material equivalence |
| C. | logical equivalence |
| D. | conjunction |
| Answer» B. material equivalence | |
| 890. |
Bi-conditional statement is also called …………………. |
| A. | implication |
| B. | logical equivalence |
| C. | material implication |
| D. | material equivalence |
| Answer» E. | |
| 891. |
When two statements are combined by using the phrase “if and only if”, theresulting compound statement is called ………………………………………….. |
| A. | conditional statement |
| B. | bi-conditional statement |
| C. | disjunctive statement |
| D. | conjunctive statement |
| Answer» C. disjunctive statement | |
| 892. |
The two component statements of disjunction are called ………………………………. |
| A. | ” conjuncts” |
| B. | the “consequents” |
| C. | “disjuncts” |
| D. | the “antecedents” |
| Answer» D. the “antecedents” | |
| 893. |
The two component statements of conjunction are called…………………………….. |
| A. | the “antecedents” |
| B. | ”disjuncts” |
| C. | “conjuncts” |
| D. | the “consequents” |
| Answer» D. the “consequents” | |
| 894. |
In a conditional, the component statement that follows the “then” is called ………. |
| A. | the “antecedent” |
| B. | the “consequent” |
| C. | the “disjunct” |
| D. | the “conjunct” |
| Answer» C. the “disjunct” | |
| 895. |
In a conditional, the component statement that follows the “if” is called …………… |
| A. | the “consequent” |
| B. | the “antecedent” |
| C. | the “conjunct” |
| D. | the “disjunct” |
| Answer» C. the “conjunct” | |
| 896. |
The two types of statements dealt within propositional logic are …………………… |
| A. | singular and general statements |
| B. | universal affirmative and universal negative statements |
| C. | particular affirmative and particular negative statements |
| D. | simple and compound statements. |
| Answer» E. | |
| 897. |
……………………………………. does not analyse the internal structure of propositions |
| A. | quantification logic |
| B. | predicate logic |
| C. | propositional logic |
| D. | truth functional logic |
| Answer» D. truth functional logic | |
| 898. |
Quantification logic is also called……………………………………… |
| A. | propositional logic |
| B. | predicate logic |
| C. | classical logic |
| D. | ancient logic |
| Answer» C. classical logic | |
| 899. |
………………………………….analyses the internal structure of propositions |
| A. | propositional logic |
| B. | truth functional logic |
| C. | sentential logic |
| D. | predicate logic |
| Answer» E. | |
| 900. |
…………………………..is a branch of Symbolic Logic |
| A. | classical logic |
| B. | traditional logic |
| C. | propositional logic |
| D. | mathematical logic |
| Answer» D. mathematical logic | |