ఎవరు తప్పక ఎంచుకోవాలి?

ఎవరు తప్పక ఎంచుకోవాలి?

Civils Prelims

CSAT - Model Questions

Examine the given statements and find out which conclusion/ conclusions are logically valid.

1.    Statements:
    Some chocolates are tasty
    All tasty are costly
    People tend to buy costly items.
    Conclusions:
    I.    Some people tend to buy chocolates
    II.    All costly are tasty
    a) Only I follows
    b) Only II follows
    c) Both follow    d) None of these

2.    Statements:
    Buses are generally air conditioned
    All buses are not comfortable for travelling
    Conclusions:
    I.    Some buses are air conditioned
    II.    Some air conditioned are buses
    III.     No bus is comfortable for travelling
    IV.     Some buses are not comfortable for travelling
    a) Only I follows
    b) Only II follows
    c) I, II and IV follow
    d) None of these

3.    Statements:
    A. 'The adventures of TinTin' is a story book
    B.    Many story books are interesting
    C.    A few interesting things are costly
    D.    Not a single costly one is without publicity
    Conclusions:
    I.    Some story books are interesting
    II.    All story books may be interesting
    III.    'The adventures of TinTin' could be an interesting story book
    IV.    Some costly are interesting
    V.    All costly ones are with publicity
    a) I, II, IV and V are valid
    b) I, II and IV are valid
    c) All are valid d) None of these

4.    Statements:
    Each of us earns money
    All (of us) can do productive work
    Productive work always earn money
    Conclusions:
    I.    People, by and large, can do productive work
    II.    Only productive work earns money
    III.    If a person does productive work he earns money
    a) Only I and III are valid
    b) Only III and IV are valid
    c) Can't be determined
    d) All are valid

5.    Statements:
    Some movies are entertaining
    Some entertaining are costly
    Some costly are Luxurious
    Some Luxurious are inaccessible
    Rajesh purchases all costly things
    Conclusions:
    1.    Some inaccessible can be entertaining
    2.    Some Luxurious can be entertaining
    3.    Rajesh must be purchasing some of those which are entertaining as well as some which are luxurious.
    a) Only 1 is valid
    b) Only 2 is valid
    c) All are valid
    d) None follows

6.    Statements:
    All machines consume energy
    Electricity provides energy
    Electrically operated machines are cheap to maintain
    Electrically operated machines do not cause pollution.
Which one of the following inferences can be drawn from the above statements?
    a)    All machines are run by electric energy.
    b)    There is no form of energy other than electricity
    c)    Most machines are operated on electric energy.
    d)    Electrically operated machi- nes are preferable to use.

7.    Statements:
    None but the hardworking will be successful
    Some of those who are successful become rich
    Some of those who become rich require people to work under them.
    Which one of the following conclusions can be drawn from the above statements?
    a) All the hardworking are successful
    b) Those who are successful become rich
    c) All the hardworking become rich
    d) All those who are successful are hardworking

8.    Statements:
    All government employees stationed in the city are salaried employees
    Some of them have residential quarters
    All government employees appointed after the state formation have residential quarters are stationed in the city
    All those who are employed are not government employees
Which one of the following conclusions can be drawn from the above statements?  
    a)    Only salaried employees are stationed in the city
    b)    Some salaried government employees with residential quarters are stationed in the city
    c)    Employees other than that of government employees cannot have residential quarters
    d)    Most of the government employees appointed are before the state formation.

9.    Statements:
    1.    All children are the manifestation of god
    2.    Some children are naughty
    3.    Hyperactive people are prone to become naughty
From the above three statements it may be concluded that
    a) Children are hyperactive
    b) Some naughty children are the manifestation of god
    c) All hyperactive persons are naughty
    d) Some hyperactive persons are the manifestations of god

10.    Statements:
    Only those students who have mathematics in their intermediate are eligible to become engineering graduates
    Some engineering graduates are software professionals
    Those who are software professionals can work with multinational companies
Which of the following conclusions can be drawn from the above statements?
    a)    All those who have mathematics in their intermediate are engineering graduates
    b)    All engineering graduates have mathematics in their intermediate.
    c)    All those who work with multinational companies are engineering graduates.
    d) No conclusion can be drawn.

11.    Statements:
    1. Only good singers can participate in the competition
    2. Some participants in the competition are classical singers
    3. All classical singers in the competition are invited for orientation programme
Which one of the following conclusions can be drawn from the above statements?
    a)    All participants in the competition are invited for orientation programme
    b)    All good singers are invited for orientation programme
    c)    All participants in the competition are good singers.
    d)    None of the statements (a), (b) and (c) given above is correct.

Directions (Questions 12-13): Each of the following two items consists of four statements. Of these four statements, two cannot both be true, but both can be false. Study the statements carefully and identify the two that satisfy the above condition. Select the correct answer using the codes given below each set of statements:
12.    Examine the following statements:
    All chairs are plastic
    Some chairs are not plastic
    Chairs are not plastic
    Some chairs are plastic
    Codes:
    a) 1 and 3    b) 1 and 2
    c) 2 and 3    d) 3 and 4

13.    Examine the following statements:
    1.    All children are motivated by inspiring stories
    2.    Some children are motivated by inspring stories
    3.    No child is motivated by inspiring stories
    4.    Some children are not motivated by inspiring stories
    Codes:
    a) 1 and 3    b) 1 and 2
    c) 2 and 3    d) 3 and 4

14. Directions: Each of the following two items consists of four statements. Of these four statements, two statements can be true simultaneously. Study the statements carefully and identify the two that satisfy the above condition. Select the correct answer using the codes given below each set of statements:
    1. All P's are Q's
    2. Some P's are Q's
    3. No P is Q
    4. Some P's are not Q's
    Codes:
    a) 3 and 4    b) 1 and 2
    c) 2 and 4    
    d) All of the above

Directions (Q. 15-17): A three member team needs to be formed in a school for the selection of Head Boy and Head Girl. Selection for the team members needs to be made from among three boys, B1, B2 and B3 and three girls viz G1, G2 and G3.
    Following rules have to be considered:
    1.    If B3 is selected, G3 must be selected
    2.    If B1 is selected, B2 cannot be selected
    3.    If either B3 or G2 is selected then the other one should also be selected
    4.    The committee should have at least one boy and one girl.

15.    If girls are required in majority, who must be selected?
    a) B3    b) G1    c) G2    d) G3

16.    If B1 and G3 are selected, which of the following is true?
    a) B3 is also selected
    b) G1 is not selected
    c) Boys are in majority
    d) Girls are in majority

17.    If four members need to be selected, which of the following is true?
    a)    If B1 is selected, G3 must also be selected
    b)    If B2 is selected, G1 must also be selected
    c)    If B3 is selected, B1 must also be selected
    d)    If G3 is selected, G1 must also be selected

18.    Statements:
    1.    People watch movies regularly whether they are interesting or not.
    2.    I try to find out which movies are interesting.
    3.    If Movie is interesting, then i watch it.
    Conclusions:
    a) I watched the movie means it is interesting
    b) The Movie is interesting; hence I watch it
    c) I did not watch the movie, though it was interesting
    d) I did not watch the movie implies that it was not interesting.
    a) b and d    b) Only d
    c) Only b    d) Only a

19.    Statements:
    Ice cream parlours are crowded during sunny days.    
    Whenever it is a sunny day, people like ice cream
    Conclusions:
    a)    It is a sunny day hence people like ice cream
    b)    People did not like ice cream implies it is not a sunny day
    c)    It is a sunny day but people did not like ice cream
    d)    Both a and b

20.    Statements:
    I like both coffee and tea.
    Both X and Y are my friends.
    Either X prepares coffee for me or Y offers tea to me.
    Conclusions:
    a)    X did not prepare coffee means Y will offer tea
    b)    Y did not offer tea hence X prepared coffee
    c)    X is preparing coffee hence Y has offered tea
    d)    Y did not offer tea implies that X did not prepare coffee
    a) a and b    b) Only b
    c) Only c    
    d) None is correct