Competitive Exams: Philosphy MCQs (PracticeTest 84 of 90)
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Which one of the following sentences is not equivalent to the other three?

Neither Humpty nor Dumpty will be selected

Humpty and Dumpty will both not be selected

Humpty and Dumpty will not both be selected

It is not the case that either Humpty or
Dumpty be selected


A is true statement and X, Y, Z are false statements then, consider the following statement forms

[ (AX) Y]Z

(AY)  (AZ)
Of these statement forms

both are true

both are false

1 is true and 2 is false

1 is false and 2 is true


‘Honesty is not a good policy’ does not logically imply which one of the following

Either honesty is not a good policy or dishonest persons will be punished

It is false that honesty is a good policy but dishonest persons are not punished

If honesty is a good policy then dishonest persons will be punished

Honesty is a good policy if and only if dishonest persons are punished


There occurs an error in the truthtable given below: p q pq ~p ~pq (pq)  (~ pq) T T T F T T T F T F T T F T F T F T F T F F F T In which row does the error occur?

First row

Second row

Third row

Fourth row


Which of the following propositional forms are tautology?

(XY) Z

(~ AP) ~ (A. ~ P)

[~ (~P~ Q)  (p Q) ]{ (PQ) [P (p Q) ]}
Select the correct answer from the codes given below:
Codes:

1 and 4

2 and 3

2 and 4

1 and 3


Given that [ (PQ) (QR). ] (RP) is true if

P is true, Q is true, R is true

P is false, Q is false, R is false

P is false, Q is true, R is false

P is true, Q is false, R is false
Select the correct answer form the codes given below:
Codes:

1 alone

1 and 2

1, 2 and 3

1, 2, 3 and 4


Indicate which one of the following is not a legitimate conclusion from ~ (P~ Q)

Q

~P

QP

~ Q


Which one of the following can be deduced from (P~ B). [ (~PC) (~BD). ]?

C. D

~ (C. D)

~ (DC)

~ (~D. ~C)


Given the following proof of the argument:

AB

BC

CD

~ D

AE/E

AC

AD

~ A

E
Which of the following rules are used in deriving steps 6, 7, 8 and 9 respectively (MP = Modus Ponens, MT = Modus Tollens, DS = Disjunctive Syllogism, HS Hypothetical Syllogism)?

MP, MPMT, MP

MPMP, MT, DS

HS, HS, MT, DS

HS, HS, MT, MP


The formal proof of validity of the given argument contains just two steps: MN ~ M. ~ O/N Which pair of the following rules are used in obtaining the conclusion?

De Morgan's theorem, Modus Ponens

Destructive dilemma, Disjunctive syllogism

Simplification, Disjunctive syllogism

Simplification, Modus Ponens


Which of the following arguments are invalid?

India will sign CTBT only if India is include in the group of Nuclear Powers. India does not sign CTBT. India will not be included in the group of Nuclear Powers.

India will sign CTBT only if India is included in the group of Nuclear Powers. India is included in the group of Nuclear Powers. India will not sign CTBT.

India sill sign CTBT only if India is included in the group of Nuclear Powers. India is not included in the group of Nuclear Powers. India will not sign CTBT.

India will sign CTBT only if India is included in the group of Nuclear
Power, India signs CTBT. India will be included in the group of Nuclear Powers.
Select the correct answer from the codes given below:
Codes:

1 and 3

2, 3 and 4

1 and 2

1, 3 and 4


Which pair/s of statements given below will yield valid arguments given the premise that: ‘Mini is at home or in the club’

She is at home, therefore she is not in the club.

She is in the club, therefore she is not at home.

She is not in the club, therefore she is at home.

She is not at home, therefore she is in the club
Select the correct answer from the codes given below:
Codes:

2 alone

3 and 4

1 alone

1 and 2


Match List I with List II and select the correct answer using the codes given below the lists
ListI (Theses) ListII (Philosophers) 
Value is entailed by natural properties

A factual statement cannot entail a value conclusion

Good is a supervenient property

Value statements areexpressions of emotions

Ayer

Hare

Hume

Mill
 A
 B
 C
 D

 3
 4
 2
 1

 4
 3
 1
 2

 4
 3
 2
 1

 3
 4
 1
 2


Which one of the following pairs is correctly matched?

 Similar moral principles do not exist in all societies
 Cultural Absolutism

 There is extreme variations in customs, manners, taboos, religions and so on, from culture to culture
 Cultural Relativism

 Freedom is compatible with determinism
 Hard Determinism

 There is no causality all
 Soft

Determinism