Wednesday 30 July 2014

ECAT Past paper

Here are the questions from ECAT 2013 that were provided by the students who took the test last year. These are not the exact statements but very close to actual. These questions will give you an idea of the questions that can be asked in ECAT

Feel free to ask in case of any confusion

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1) If Thermistor Is Placed In Oven If Temp Of oven Is Increased Then The
a) R Increses b) R Decreses c) R remains same d) none of these

2) A Body is accelerating downward with 9.8ms^-2. If we throw it with some force, then acceleration will be:
a) More than 9.8 b) Less than 9.8 c) Equal d) None

3) 1+cosx/sinx+sinx/1+cosx equal to
a) 2/sinx  b)tan2x

4) To Increase Charging of Capacitor
a) Resistance Decrease b) Capacitance Increases c) Fixed Capacitance

5) The Function y=3x-x^2 for x>=0 Has a maximum value at
a) 1,2 b) 2,1 c)3,4 d)2,2

6) How Many Arrangements Of The Letters Of FASTING can be made

7)  When Borax Is Hydrolized Then Caustic Soda And Boric Acid Is Produced Then The Solution Is
a) Neutral b) Acidic c) Alkaline

8) In Exothermic Reaction If Temp Is Increased Then Reaction Moves
A) Backward Forward C) No Change

9) The Angular Frequency Of A Pendulum Is 1 Rad/sec Its Length Will Be :
a) 24 m b). 9.8 m c).98 m d). None

Nylon Is Which Type Of Polymer
a) Condensation b) Addition

10) How many maximum amino groups be there in amino Acid?
a) 1 b) 2 c) 3 d) 4

11)  Lithium and sodium both belong to same group but Lithium differs in properties remarkably because
a) Lithium is lighter than sodium b)large charge to size ratio c)Li slowly react with water d)ALL

12)  If 1 micro coulomb charge is pass through wire in 1 micro second then current will be
a) 1 A b) 1 Micro Ampere c) None

13) Orbital speed of satellites going around the earth increased if the distance from earth is......
a)increased b) decreased c) Remain same

14) a helicopter is ascending vertically at the rate of 19.6ms-1 when it is at a height of 156.8m above the
ground.how long the stone takes to reach the ground

15) Tesla is a unit of magnetic field is equal to ....?
a) Nm/A b) NmA c) none

16) A coin is tossed. If it lands head a point value of +1 is recorded if it is tails then -1.If the coin is tossed 50 times and the final score is 14 how many heads landed.
a) 14 b) 25 c) 32 d) 39

17) which has no Hydrogen bonding a) alcohol b) water c) ethane d) acetic acid

18) voltage-current graph of non ohmic device is......
a) is not straight line b ) straight line c) parabola

19) Ameter is a galvanometer with a
a) high resistance connected in parallel b) low resistance connected in parallel
c) high resistance connected in series d) low resistance connected in series

20) The coefficient of x in the expansion of ( 1 - 2x )^n is -8 then the coefficient of x^2 will be

21) which one is not true about hydrocarbons
a) they all are aromatic compounds b) they react quickly c) they all ring compound d) all of above

22)  Hydrocarbons containing triple bond are
A) alkene B) aromatic C) alkane D) none

23) 100 kg mass 100m radius 36ms-1 speed centripetal force

24) Oxidation state of cl in NaCl and NaOCl is
a) -1,+1 b) 2,-1 c) -1,2 d) none

25) which of following does not have haxagonal structure
a) Zn b) graphite c) Zn oxide d) gold

26) A man is standing at the pole looks at the car 10m away from poll the angle of depression is 45degree find the height of pole.

27) which one is covalent bonding giant molecule
a) diamond b) sugar c) ice

28) A train traveling a sounds a whistle of frequency 5270hz.frequency of sound heard by the driver was
a) 5270 b) more than 5270 c) less than 5270

29) when we tune a radio that means
a) capacitance changes b) inductance changes c)resistance changes d)we change the frequency

30) Milkians method is used to determine?
a) e/m of electron b) Charge On Electron c) Mass Of Electron

31) if three resistors of resistance R are connected in parallel their equivalent resistance is
a) R/3ohm b) 9R ohm c) 3R ohn

32) What is oxidation state of Sulphur in Na2SO4?
a)2 b)5 c)4 d)n0ne

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