Related Questions

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
The alloy used for making electrical resistances and heating elements is
A Nichrome
B Invar
C Magnin
D Elinvar
If Michael can shovel all the snow of a standard driveway in 12 minutes, and Emon can shovel all the snow of a standard driveway in 36 minutes, then working together, how many minutes would it take for them both to shovel all the snow of a standard driveway?
A 5
B 9
C 15
D 18
Which method can be used for absolute measurement of resistances?
A Lorentz method
B Raleigh method
C Ohm's law method
D Wheatstone bridge method
Which of the following resistances can be measured by conducting insulation resistance test on a synchronous motor ?
A Phase to phase winding resistance
B Stator winding to earthed frame
C Rotor winding to earthed shaft
D All of the above
Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction?
A Ash resistance
B Gas film and pore surface diffusion resistances for reactants
C Surface phenomenon resistance
D Gas film and pore surface diffusion resistances for products
In a series parallel circuit, any two resistances in the same current path must be in
A Series with each other
B Parallel with each other
C Series with the voltage source
D Parallel with the voltage source
In a series circuit with unequal resistances
A The highest resistance has the most of the current through it
B The lowest resistance has the highest voltage drop
C The lowest resistance has the highest current
D The highest resistance has the highest voltage drop
In a Wien-bridge oscillator, if the resistances in the positive feedback circuit are decreased, the frequency ___________
A Remains the same
B Decreases
C Increases
D Insufficient data
With increase in impurities in metals, their corrosion resistances
A Increase
B Decrease
C Remain same
D May increase or decrease ; depending on the type of metal

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