POLYCET (2022) -4
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మీకు ఏవైనా కీ లోపాలు దొరికితే లోపాలు మాకు తెలియజేయడానికి వెనుకాడవద్దు.
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If the graphs of two equations are parallel then the equation are
b. Consistent with unique solution
If the unit’s and ten’s digit of a two digit number are ‘y’ and ‘x’ respectively, then the number will be
a. 10x + y
b. 10y + x
c. x + y
One third of number is greater than one fourth of its successor by 1. That number is
A two digit number is 4 times the sum of its digits and twice the product of its digits. That number is
The difference of square of two numbers is 180. The square of the smaller number is 8 times the larger number. The biggest of the two numbers is
Rs. 9000/- were divided equally among a certain number of persons. Had there been 20 more persons, each would have got Rs. 160/- less. The original number of persons are
Half the perimeter of a garden, whose length is 4m more than its width, is ’36m’. The dimensions of the garden are
a. 22m and 14m
b. 20m and 16m
c. 24m and 12m
d. 26m and 10m
7 audio cassettes and 3 video cassettes cost Rs.1110/-, while 5 audio cassettes and 4 video cassettes cost Rs.1350/-. Then the cost of an audio cassette and a video cassette together is
a. Rs 330/
b. Rs 310/-
c. Rs 270/-
d. Rs 340/-
The pair of points which lie on either side of the line 5x + 4y = 20 is
a. (1, 1), (2, 2)
b. (4, 3), (3, 4)
c. (1, 1), (3, 0)
d. (1, 1), (3, 3)
67. A point which satisfies the linear equation x – 2y + 2 = 0 is
a. (2, 1)
b. (4, 3)
c. (6, 4)
d. (0, -1)
An emission spectrum consists bright spectral lines on a dark background . Which one of the following doesn’t corresponding to bright spectral lines ?
a. Energy of emitted radiation
b. Frequency of emitted radiation
c. Velocity of light
d. Wavelength of emitted radiation
Which colour flame does strontium chloride produce ?
a. Crimson red
c. Apple green
d. Light blue
‘n’ and ‘l’ values for some orbitals are given. Which of the following orbitals has highest energy ?
a. n = 2 , l = 0
b. n = 3 , l = 2
c. n = 4 , l = 0
d. n = 3 , l = 1
Which of the following has least energy ?
Which of the following quantum number give size and energy of orbital ?
Which of the following are noble gases?
Which of the following quantum number is related to the size and energy of the main shell ?
a. Spin quantum number(ms)
b. Angular-momentum quantum number(l)
c. Magnetic quantum number(ml)
d. Principal quantum number(n)
In an electromagnetic wave electric, magnetic fields are———to each other
Noble gases belongs to …………group
a. V A
b. VIII A
c. VI A
d. VII A
How many elliptical orbits are possible for a given value i.e, n=6 ?
The graphic representation of the feeding level structure of an ecosystem by taking the shape of a pyramid is known as
a. Pyramid of energy
b. Pyramid of numbers
c. Ecological pyramid
d. Pyramid of biomass
Pick out the wrong pair
a. Charles Elton – Ecosystem
b. Charles Darwin – Evolution
c. Lavoisier – Respiration is a combustion process
d. Priestly – Reproduction
Example of bio fuel is
“Ban all pesticides”means
a. Control an usage of pesticides
b. Prevention of pesticides
c. Stop bio-chemical factories
d. Promote Eco-friendly agricultural pesticides
Consider the following
It would be better to reduce the reproductive capacity of male insects
Crop rotation method is the best practice.
a. Only 1 is true
b. Only 2 is true
c. Both 1 & 2 are true
d. Both 1 & 2 are false
Fossil fuels are formed by anaerobic decomposition of buried
c. Dead bodies
Identify the correct statement
a: The factor which determine the ecosystem are rainfall,temperature,sunlight
b. Forests are associated with high rainfall
c. Both a,b
The length of twisty channel upputeru which connects kolleru lake with Bay of Bengal
a. 80 km
b. 55 km
c. 79 km
d. 65 km
In pyramid each bar represents
a. Number of individuals at each tropic level
b. Number of individuals at all tropic level
c. Number of all things at each tropic level
Which of the following do plants not complete for ?