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MR. MECH ROUND 1

Quiz by Shubham Sharma

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20 questions
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  • Q1

    1.Who is honoured as Father of Modern Chemistry? 

    Antoine Lavoisier

    David Joseph

    Newton

    Rinky Martin

    30s
  • Q2

    Who invented periodic table?

    Newton

     David Joseph

    Rinky Martin

    Dmitri Mendeleev

    30s
  • Q3

    Which is the most abundant gas in the earth's atmosphere?

    Hydrogen

    Nitrogen 

    Helium

    Carbon-di-oxide

    30s
  • Q4

    Which gas is evolved from paddy fields and marshes?

    Hydrogen

    Methane

    Nitrogen

    Helium

    30s
  • Q5

    Which toxic element present in automobile exhausts?

    Tustin

     copper

     Iron

    Lead

    30s
  • Q6

    Consider an inductor whose linear dimensions are tripled and the total number of turns per unit length is kept constant, what happens to the self-inductance?

    9 times

    1/3 times

    27 times

    3 times

    30s
  • Q7

    What is the constant of proportionality of an oscillator if the damping force is directly proportional to the velocity?

    Kg.s-1

    Kg.m.s-2

    Kg.m.s-1

    Kg.s

    30s
  • Q8

    The capacity of parallel plate condenser is dependent on the

    The metal used for the construction

    The potential applied across the plates

    The separation between the plates

    The thickness of the plate

    30s
  • Q9

    The observer hears a sound from the source which is moving away from the observer who is stationary. Determine the frequency of the sound

     It remains the same

    It reaches infinity

    It is halved

     It gets doubled

    30s
  • Q10

    What is the ratio of power dissipated if two electric bulbs are connected in series and the ratio of their resistance is 1:2?

    1:4

    2:1

    1:2

    1:1

    30s
  • Q11

    Consider copper and aluminum wire whose length and resistance are the same. Also, the specific resistance of aluminum is more than copper. Select the correct statement

    Copper wire has less mass than the aluminum wire

    The information given is incomplete

    Copper wire has more mass than the aluminum wire

    Copper and aluminum mass are the same

    30s
  • Q12

    A potentiometer is considered a versatile and accurate device to make an electrical measurement of EMF. Why?

    Because the method involves a combination

    There are cells involved

    Because of potential gradients

     As there is no flow of current through the galvanometer

    30s
  • Q13

    Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume?

     Isothermal

     Isochoric

    Adiabatic

    Isobaric

    30s
  • Q14

     Find the compound which undergoes nucleophilic substitution reaction exclusively by an SN1 mechanism

    Isopropyl chloride

     Benzyl chloride

     Ethyl chloride

    Chlorobenzene

    30s
  • Q15

    What will be the work done by 3 moles of an ideal gas when it expands spontaneously in vacuum?

    9 joules

     Infinite

    Zero

     3 joules

    30s

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