Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors?

A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?

A

Civics and 7th

B

Economics and 5th

C

Civics and 6th

D

History and 7th

Which of the following is not necessarily an advantage of interconnecting various power stations?

A

Improved frequency of power supplied

B

Reduction in total installed capacity

C

Increased reliability

D

Economy in operation of plants

P,Q, R, S, T, V and W are seven friends .Each of them likes a particular fruit, viz. Apple, Banana, pear, Guava , Orange, Mango and Watermelon and each of them has a favorite city, viz. Mumbai , pune, Delhi, Kolkata, chennai, Hyderabad and Cochin . The choices of fruit and favorite city of the seven friends aren't necessarily in the same order. Q likes Mango and his favorite city is chennai . The one shose favorite city is pune likes Watermelon . T's favorite city is Kolkata. R likes Guava and is favorite is not Mumbai. W's favorite city is cochin and he does not lide either Banana or pear. The favorite city of the one who likes Orange is Hyderabad. T does no like pear. P's favorite city is neither Pune nor Hyderabad. S does not like Watermelon . who likes Apple?

A

W

B

T

C

V

D

P

When I was in town, I tried to" take full advantage" of the many public libraties there. Here ‘take full advantage’ means

A

take pictures

B

make a survey

C

make good use

D

visit to get an idea

When I was in town , I tried to take full advantage of the many public libraries there. Here 'take full advantage' means:

A

take pictures

B

make a survey

C

make good use

D

visit to get an idea

Which of the following motors is preferred when smooth and precise speed control over a wide range is desired?

A

D.C. motor

B

Squirrel cage induction motor

C

Wound rotor induction motor

D

Synchronous motor

One country enjoys a comparative advantage over another in producing oil when --

A

it has more oil than the other country

B

it can produce oil at a lower opportunity cost than the other country

C

it does not need to import oil

D

it wants to export as much oil as possible

Which of the following is not an advantage of decentralized processing over centralized processing?

A

reduced data communication costs

B

improved system reliability

C

increased employee productivity

D

increased computer system control

E

All of the above are advantages

What is not the advantage of IPV6 over IPV4 ?

A

longer address

B

Classification of traffic

C

More real IP adress

D

Jumbo Payload

In a certain office, the human resources department reports that 60% of the employees in the office commute over an hour on average each day, and that 25% of those employees who commute over an hour an average each day commute by train. If an employee at the office is selected at random, what is the probability that the employee commutes over an hour on average by train?

A

0.10

B

0.15

C

0.20

D

0.25

Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors?

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