IN SOME CASES THE TRANSFORMER IS DESIGNED TO APPLY DC
PULSE( NOT CONTINUOUS DC SIGNAL ) TO ITS PRIMARY WINDING
AND THE TRANSFORMER IS CALLED AS "PULSE TRANSFORMER".
IF DC VOLTAGE IS GIVEN TO WDG; AS WDS IS AS GOOD AS
INDUCTOR HENCE CURRENT I=(1/L)*INTEGRAL(Vdc)dt, WHICH WILL
CONTINUOUSLY INCREASE THE CURRENT FLOWING THROUGH THE
WINDING. HENCE THE WIDTH OF THE PULSE SHOULD BE SMALL
OTHERWISE THE TRANSFORMER WINDING WILL BURN.
IN THE PULSE TRANSFORMERS THE RESISTANCE OF THE WINDING
SHOULD BE KEPT MINIMUM TO LINIT THE I^2*R LOSSES AND LIMIT
THE TEMP OF THE WINDING BEFORE INSULATION FAILURE.
10.Ten coins are distr. Among 4 people P, Q, R, S such that
one of them gets a coin, another gets 2 coins,3rd gets 3
coins, and 4th gets 4 coins. It is known that Q gets more
coins than P, and S gets fewer coins than R
a. If the no. of coins distr. To Q is twice the no. distr.
to P then which one of the following. is necessarily true?
i. R gets even no. of coins
ii. R gets odd no. of coins
iii. S gets even no. of coins
iv. S gets odd no. of coins
b. If R gets at least two more coins than S which one of the
following is necessarily true?
i. Q gets at least 2 more coins than S
ii. Q gets more coins than P
iii. P gets more coins than S
iv. P and Q together get at least five coins
c. If Q gets fewer coins than R, then which one of the
following is not necessarily true?
i. P and Q together get at least 4 coins
ii. Q and S together get at least 4 coins
iii.R and S together get at least 5 coins
iv.P and R together get at least 5 coins
11.Elle is 3 times older than Zaheer. Zaheer is ½ as old as
Waheeda. Yogesh is elder than Zaheer.
a. What is sufficient to estimate Elleís age?
i.Zaheer is 10 yrs old
ii.Yogesh and Waheeda are both older than Zaheer by the same
no of yrs.
iii.Both of the above
iv.None of the above
b. Which one of the following statements can be inferred
from the info above
i.Yogesh is elder than Waheeda
ii.Elle is older than Waheeda
iii.Elleís age may be less than that of Waheeda
iv.None of the above
Direction for Qn 1-8
Ans A using I only
Ans B using II only
Ans C using both I and II
Ans D not solvable
1. Raman and Gaurav Brought eggs from a vendor. How many
eggs were bought by each of them
i. Raman bought half as many as Gaurav
ii. The dealer had a stock of 500 eggs at the
beginning of day
2. What is the age of Ramprakash?
i. Ramprakash was born when his father was 26 yrs old
ii. Ramprakashís mothers age is 3yrs less than his
3. How much time is reqd for downloading the software?
i. The Data transfer rate is 6 kbps
ii. The size of the software is 4.5 megabytes
4. Sanjay and Vijay started their journey from Mumbai to
Pune. Who reached Pune first?
i. Sanjay overtakes two times Vijay and Vijay
overtakes Sanjay two times
ii. Sanjay started first
5. Is the GDP of country X higher than Country Y?
i. GDPís of X and Y has been increasing at a
compounded annual growth rate of 5% and 6% over he past 5 yrs
ii. 5 yrs ago GDP of X was 1.2 times Y
6. A boat can ferry 1500 passengers across a river in 12
hrs. How many round trips does it make during the journey?
i. The boat can carry 400 passengers at a time
ii. During its journey, the boat takes 40 mins time
each way and 20 mins waiting time at each end.
7. What are the values of m and n?
i. n is an even integer, m is odd integer and m is
greater than n.
ii. The product of m and n is 30
8. How much is the weight of 20 mangoes and 30 oranges?
i. 1 orange weighs twice that of 1 mango
ii. 2 mangoes and 3 oranges weigh 2 kg
Direction for Qn 9-12
Five teams participated in Pepsi Cup. Each team played
against each other. The top teams played finals. A win
fetched 2 pts and a tie 1 point
1) South Africa were in the finals
2) India defeated SA but failed to reach the finals
3) Australia lost only one match in the tournament
4) The match between India and Sri Lanka was a tie
5) The undefeated team in the league matches lost in
6) England was one of the best teams that did not qualify
9. Who were the finalists?
i. SA & India
ii. Aus & SL
iii. SA & SL
10. Who won the finals?
iv. Canít be determined
11. How many matches did India Win?
iv. canít be determined
12. What was the outcome of the India England Match
i. India won
ii. England won
iii. It was a tie
iv. Canít be determined
the concession stand at cinema city sells popcorn in three
sizes-large,super and jumbo one day cinema city 240 bags
of popcorn and the ratio of large and super to jumbo was
8:17:5.how many super bags of popcorn were sold on that day
a family has 4 people. father is 10kgs.mother 10
kgs.daughter 5 kgs,son 5 kgs........the family has to cross
a river to reach other side of land ..Assume they should go
from A to B....the boat is limited to carry 10 kgs at a
time...how will they reach?THERE IS NO SAILOR TO TAKE