MR. MECH ROUND 1
Quiz by Shubham Sharma
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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