# 5. Venn Diagram in Hindi (1)

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Q1. Venn diagram is a kind of diagram to

1. represent and assess the validity of elementary inferences of syllogistic form.
2. represent but not assess the validity of elementary inferences of syllogistic form.
3. represent and assess the truth of elementary inferences of syllogistic form.
4. assess but not represent the truth of elementary inferences of syllogistic form.

1. Which of the codes given below contains only the correct statements?

Statements:

(i) Venn diagram is a clear method of notation.

(ii) Venn diagram is the most direct method of testing the validity of categorical syllogisms.

(iii) In Venn diagram method the premises and the conclusion of a categorical syllogism is diagrammed.

(iv) In Venn diagram method the three overlapping circles are drawn for testing a categorical syllogism.

Codes:

(A) (i), (ii) & (iii) (B) (i), (ii) & (iv)

(C) (ii), (iii) & (iv) (D) (i), (iii) & (iv)

1. Select the code which is not correct about Venn diagram :

(1) Venn diagram represents propositions as well as classes.

(2) It can provide a clear method of notation.

(3) It can be either valid or invalid.

(4) It can provide the direct method of testing the validity.

1. Which one of the following statements is not correct in the context of Venn diagram method ?

(1) It is a method of testing the validity of arguments.

(2) It represents both the premises of a syllogism in one diagram.

(3) It requires two overlapping circles for the two premises of a standard-form categorical syllogism.

(4) It can be used to represent classes as well as propositions.

Q-5 Consider the statements (a), (b), (c) and (d) given below. Which one of the codes contains the correct statements only?

1. Venn diagram is a clear method of notation.
2. To diagram a standard form of a categorical proposition, three overlapping circles are drawn.
3. To test a categorical syllogism, two overlapping circles are drawn.
4. Venn diagram is a method of testing the validity of categorical syllogisms.

Options:-

1. (A) and (d) only
2. (a), (b), (c) and (d)
3. (a) and (b) only
4. (a), (b) and (c) only

1. Given below are two premises and four conclusions drawn from those premises. Select the code that expresses the conclusion drawn validly from the premises (separately or jointly).

Premises:

(a) All dogs are mammals.

(b) No cats are dogs.

Conclusions:

(i) No cats are mammals.

(ii) Some cats are mammals.

(iii) No Dogs are cats.

(iv) No dogs are non-mammals.

Codes:

(A) (i) only

(B) (i) and (ii)

(C) (iii) and (iv)

(D) (ii) and (iii)

1. Given below are two premises. Four conclusions are drawn from those two premises in four codes. Select the code that states the conclusion validly drawn.

Premises :

(i) All saints are religious. (major)

(ii) Some honest persons are saints. (minor)

Codes :

(A) All saints are honest

(B) Some saints are honest.

(C) Some honest persons are religious.

(D) All religious persons are honest

1. Given below are two premises and four conclusions are drawn from them (taking singly or together). Select the code that states the conclusions validly drawn.

Premises :

(i) All religious persons are emotional.

(ii) Ram is a religious person.

Conclusions :

(a) Ram is emotional.

(b) All emotional persons are religious.

(c) Ram is not a non-religious person.

(d) Some religious persons are not emotional.

Codes :

(1) (a), (b), (c) and (d)

(2) (a) only

(3) (a) and (c) only

(4) (b) and (c) only

1. Given below are two premises, with four conclusions drawn from them (taking singly or together); which conclusions are validly drawn ? Select the correct answer from the codes given below :
Premises :

(i) All bats are mammals.

(ii) Birds are not bats.
Conclusions :

(a) Birds are not mammals.

(b) Bats are not birds.
(c) All mammals are bats.

(d) Some mammals are bats.
Codes :

(1) (a), (b) and (d)

(2) (b) and (d)

(3) (a) and (c)

(4) (b), (c) and (d)

1. Select the code that states the conclusions validly drawn from the premises (taking singly or jointly.)

Premises :

(a) Untouchability is a curse.

(b) All hot pans are untouchable.

Conclusions :

(i) All hot pans are cursed.

(ii) Some untouchable things are hot pans.

(iii) All curses are untouchability.

(iv) Some curses are untouchability.

Codes :

(1) (i) and (ii) (2) (ii) and (iii)

(3) (iii) and (iv) (4) (ii) and (iv)

1. Given below are two premises (A & B). Four conclusions are drawn from them. Select the code that states validly drawn conclusion(s) (taking the premises individually or jointly).

(A) Premises:

Most of the dancers are physically fit.

Most of the singers and dancers.

(B) Conclusions:

(a) Most of the singers are physically fit.

(b) Most of the dancers are singers.

(c) Most of the physically fit persons are dancers.

(d) Most of the physically fit persons are singers.

Code:

(1) (a) and (b) (2) (b) and (c)

(3) (c) and (d) (4) (d) and (a)

Q-23 Select the code that states the validity drawn conclusions.

Premises:

1. Some flowers are red.
2. All roses are flowers.

Conclusions:

1. Some roses are red.
2. Some red things are flowers.
3. Some flowers are roses.
4. All roses are red.

Options:-

1. (b) and (c) only
2. (a), (b) and (c) only
3. (c) and (d) only
4. (a) and (b) only

1. 25 Given below are two premises with four conclusions drawn from them (taken singly or together). Which conclusions are validly drawn? Select the correct answer from the code given below.

Premises: (i) All politicians are honest persons.

(ii) All honest persons are fair.

Conclusions: (a) Some honest persons are politicians.

(b) No honest person is politician.

(c) Some fair persons are politicians.

(d) All fair persons are politicians.

Options:

1. (a) and (c) only
2. (a), (b) and (d) only
3. (b) and (c) only
4. (b) and (d) only

Q-27 Which of the following conclusions could be validity drawn from the premises?

Premises:

1. All cats are animals.
2. Birds are not cats.

Conclusions:

1. Birds are not animals.
2. Cats are not Birds.
3. All animals are cats.
4. Some animals are cats.

Select the correct answer from the code given below:

Options:-

1. (a), (b) and (d)
2. (b), (c) and (d)
3. (b) and (d)
4. (a) and (c)

Q-29 Given below are two premises (a) and (b).

Four conclusions are drawn from them. Select the code that states validly drawn conclusion(s) [taking the premises individually or jointly].

Premises:

1. Some women are teachers.
2. All teachers are hard-working.

Conclusions:

1. All hard-working people are teachers.
2. All teachers are not women.
3. Some hard-working teachers are women.
4. Some women are hard-working.

Options:-

1. (i) और (ii)
2. (ii) और (iii)
3. (i) और (iv)
4. (iii) और (iv)

Q-31 Given below are two premises (a) and (b). four conclusions are drawn from them. Select the code that states validity drawn conclusion (s) [taking the premises individually or jointly].

Premises:

1. All diamonds are precious stones.
2. Some carbon compounds are diamonds.

Conclusions:

1. All precious stones and diamonds.
2. Some non-carbon compounds are precious stones.
3. All precious stones are carbon compounds.
4. Some carbon compounds are precious stones.

Options:-

1. (i) (ii) 2.(ii) (iv)
2. Only (iii) 4. Only (iv)

Q.35. Four conclusions are drawn from them. Select the code that states validly drawn conclusion(s).

Premises :

(a) all judges are lawyers.

(b) no doctors are lawyers.

Conclusions :

(1) no lawyers are doctors.

(2) no doctor are judges.

(3) all lawyers are judges.

(4) some doctor are judges.

1. (1) and (3) 2. (1) and (2)
2. (1) and (4) 4. (2) and (3)

Q-39 Given below are two premises (i) and (ii). Four conclusions are drawn from them (Taking singly or together).

Premises:

1. Some prisoners are dacoits.
2. Some dacoits are murderers.

Conclusions:

1. Some prisoners are murderers.
2. All prisoners are murderers.
3. Some dacoits are prisoners.
4. Some murderers are dacoits.

1. Which of the following conclusions could be validly drawn from the premises?

Premises: (i)  All cats are dogs

(ii) All dogs are cows

Conclusions:

(a) All cats are cows

(b) Some cows are cats

(c) All dogs are cats

(d) No cow is dog

Select the correct answer from the options given below:

(1) (b), (c) (d) (2) (d) only

(3) (a) and (b) (4) (b) and (d)

1. Which of the following conclusions could be validly drawn from the premises?

Premises :

(i) All fans are tubes

(ii) Bulbs are not tubes

Conclusions :

(a) Fans are not bulbs

(b) All tubes are fans

(c) Fans are bulbs

(d) No tube is bulb

Select the correct answer from the options given below :

(1) (a), (b), (c) (2) (a) and (d)

(3)  (a) only (4) (b), (c) and (d)

1. Given below are two premises with four conclusions drawn from them. Which of the following conclusions could be validly drawn from the premises?

Premises :

(i) No paper is pen

Conclusions :

(3) Some handmade are not pen

Ans: 3

1. No Musicians are Japenese

All Barbers are Musicians

No Barbers are Japenese

Identify the Middle Term in the above syllogism

(1) Subject in the first premise and predicate in the second premise

(2) Predicate in the first premise and subject in the second premise

(3) Predicate in the both premises

(4) Subject in both the premises

Ans:1

1. Given below are two premises with four conclusions drawn from them. Which of the following conclusions could be validly drawn from the premises?

Premises:

(a) Some rings are bells

(b) No ring is ornament

Conclusions:

(1) All bells are ornaments

(2) Some ornaments are not bells

(3) No ring is bell

(4) All bells are not ornaments

Ans: 4

1. The proposition ‘All birds are cows’ is equivalent to which of the following propositions?

(a) Some cows are birds

(b) Some cows are not non-birds

(c) Some birds are cows

.

(d) Many birds are cows

Select the correct answer from the options given below:

(1)  (a) only

(2)  (c) and (d)

(3) (a), (b), (c) and (d)

(4)  (d) only