ONLINE " SAPTHAGIRI CET MOCK TEST 2020" FOR PUC STUDENTS BY "SAPTHAGIRI COLLEGE OF ENGINEERING".
"SAPTHAGIRI COLLEGE OF ENGINEERING BENGALURU" , IS CONDUCTING SAPTHAGIRI CET MOCK 2020 , SO PLEASE MAKE USE OF IT ....ALL THE BEST.....THANK YOU.......NOTE : STUDENTS THOSE WHO ANSWER ALL QUESTIONS ONLY WILL GET E-CERTIFICATE.
*****NOTE: DEAR STUDENTS THIS TEST IS TO BUILD YOUR CONFIDENCE NOT AN ENTRANCE TEST FOR ADMISSION PROCESS....THANK YOU*****
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SMALL VIDEO CLIP ABOUT SAPTHAGIRI COLLEGE OF ENGINEERING , BENGALURU.
https://youtu.be/4oVGhvBc4Ts
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COLLEGE NAME (UPPER CASE AS TO BE PRINTED IN CERTIFICATE)
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VALID PHONE_NUMBER(IF NUMBER IS INCORRECT IT IS DIFFICULT TO COMMUNICATE)
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DISTRICT AND STATE
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COMBINATION
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PCMB
PCMC
PCME
OTHER:
A monatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically. The ratio of its final pressure to the initial pressure is (given ratio of specific heats of the given gas to be 5/3)
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1 point
(1) 28/5
(2) 8
(3) 32
(4) 40/3
A 30 V, 90 W lamp is to be operated on a 120 V D.C. line. For a proper glow, a resistor of …….. ohm should be connected in series with the lamp.
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1 point
(1) 20
(2) 10
(3) 40
(4) 30
If λ1 and λ2 are the wavelengths of the first members of Lyman and Paschen series respectively, then λ1 : λ2 is …….
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1 point
(1) 7:108
(2) 1:30
(3) 7:50
(4) 1:3
In a series LCR circuit, the pd between the terminals of the inductance is 60 V, between the terminals of the capacitor is 30 V and that across the resistance is 40 V. Then the supply voltage will be
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1 point
(1) 10 V
(2) 50 V
(3) 70 V
(4) 130 V
A radioactive substance contains 10,000 nuclei and its half life period is 20 days. The number of nuclei present at the end of 10 days
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1 point
(1) 8000
(2) 7500
(3) 7070
(4) 9000
The potential of a large liquid drop when eight liquid drops are combined is 20 V. then the potential of each single drop is
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1 point
(1) 2.5 V
(2) 5 V
(3) 7.5 V
(4) 10 V
The focal length of a biconvex lens of RI is 1.5 is 0.2 m. If the radius curvature of one surface is doubled that of other, the radii of curvature of the surfaces are
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1 point
(1) 0.2m, 0.6m
(2) 0.15m, 0.3m
(3) 0.1m, 0.2m
(4) 0.2m, 0.15m
Half of the lens is wrapped in black paper. How will it change the Image?
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1 point
(1) Size of the image is halved
(2) Intensity of the image is halved
(3) Both size and intensity of the image are changed
(4) There is no change in size of the image nor intensity
In a Young’s double slit experiment, the fringe width is found to be 6.4 mm. If the whole apparatus is immersed in water of refractive index 4/3 without disturbing the geometrical arrangement, the new fringe width will be
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1 point
(1) 0.3 mm
(2) 0.6 mm
(3) 4.8 mm
(4) 5.4 mm
If the below particles are moving with same velocity, then maximum de-Broglie wavelength is for
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1 point
(1) Proton
(2) Neutron
(3) α – particle
(4) β – particle
State which of the following is true
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1 point
(1) Half life is greater than Mean life
(2) Mean life is greater than Half life
(3) Mean life is equal to Half life
(4) Mean life + Half life = 1
What should be the frequency of alternating 200 V so as to pass a maximum current of 0.9 A through an inductance of one Henry?
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1 point
(1) 50 Hz
(2) 55 Hz
(3) 25 Hz
(4) 75 Hz
A step up transformer operates on a 230 V line and a load current of 2 A. The ratio of the primary and secondary windings is 1:25. The current in the primary is
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1 point
(1) 12.5 A
(2) 50 A
(3) 15 A
(4) 5 A
The output of an OR gate is connected to both the inputs of a NAND gate. The combination will serve as a :
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1 point
(1) NOT gate
(2) NOR gate
(3) AND gate
(4) OR gate
A Carnot engine working between 300 k and 400 k has 800 J of useful work. The amount of heat energy supplied the to the engine from the source is
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1 point
1. 3600 J
2. 1200 J
3. 3200 J
4. 2400 J
A neutron enters a magnetic field B making an angle at 30 degree with the field. The force on the neutron is
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1 point
(1) 2Bqv
(2) Bqv
(3) 1⁄2 Bqv
(4) zero
The orbital nearest to the nucleus is
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1 point
A) 4f
B) 5d
C) 4s
D) 7p
For an ideal gas, compressibility factor is
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1 point
A) 0
B) 1
C) -1
D) +2
H2O2 is
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1 point
A) An oxidising agent
B) A reducing agent
C) Both Oxidising and reducing agent
D) Neither oxidising nor reducing agent
Identify the following compound which exhibits geometrical isomerism:
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1 point
A) But-2-ene
B) B) But-1-ene
C) C) Butane
D) D) Isobutane
Which of the following ions will cause hardness in water?
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1 point
A) Ca2+
B) Na+
C) Cl-
D) K+
Electrolytic refining is used to purify which of the following metals?
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1 point
(A) Cu and Zn
(B) Ge and Si
(C) Zr and Ti
(D) Zn and Hg
Dry ice is
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1 point
(A) Solid CO
(B) Solid SO2
(C) Solid CO2
(D) Solid O2
The IUPAC name of [Co(NH3)4Cl(NO2)]Cl is
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1 point
(A) tetraamminechloridonitrito-N-cobalt(III) chloride
(B) tetraamminechloridonitrocobalt(II) chloride
(C) tetraamminechloridonitrocobalt(I) chloride
(D) tetraamminechloridodinitrocobalt(III) chloride
Which of the following compounds undergoes haloform reaction?
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1 point
(A) CH3COCH3
(B) HCHO
(C) CH3CH2Br
(D) CH3 – O – CH3
Which one of the following is a polyamide polymer?
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1 point
(A) Terylene
(B) Nylon-6,6
(C) Buna-S
(D) Bakelite
When PbO2 reacts with concentrated HNO3, the gas evolved is
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1 point
(A) NO2
(B) O2
(C) N2
(D) N2O
Which of the following is more basic than aniline?
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1 point
A) Diphenylamine
B) Triphenulamine
C) p-nitroaniline
D) Benzylamine
The common impurity present in bauxite is
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1 point
A) CuO
B) ZnO
C) Fe2O3
D) Cr2O3
At a particular temperature, the ratio of molar conductance to specific conductance of 0.01M NaCl solution is
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1 point
A) 105 cm3 mol-1
B) 103 cm3 mol-1
C) 10 cm3 mol-1
D) 105 cm2 mol-1
Which of the following oxides shows electrical properties like metals?
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1 point
A) SiO2
B) MgO
C) SO2(s)
D) CrO2
The element that does NOT form acidic oxide is
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1 point
A) Carbon
B) Phosphorus
C) Chlorine
D) Barium
The most abundant noble gas in atmosphere is
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1 point
A) Neon
B) Argon
C) Xenon
D) Krypton
Which of the following carboxylic acids is a tricarboxylic acid ?
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1 point
A) Oxalic acid
(B) Citric acid
(C) Succinic acid
(D) Adipic acid
Primary nitroalkanes are obtained in good yield by oxidising aldoximes with the help of
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1 point
(A) trifluoroperoxyacetic acid
(B) acidified potassium permanganate
(C) concentrated nitric acid
(D) potassium dichromate and dilute sulphuric acid
Which is the most stable allotrope of sulphur ?
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1 point
(A) Octahedral sulphur
(B) Monoclinic sulphur
(C) Plastic sulphur
(D) Colloidal sulphur
The Set A has 4 elements and the Set B has 5 elements then the number of injective mappings that can be defined from A to B is
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1 point
(1) 144
(2) 72
(3) 60
(4) 120
If A is a matrix of order m x n and b is a matrix such that AB’ and B’A are both defined, the order of the matrix B is
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1 point
(1) m x n
(2) n x n
(3) n x m
(4) m x n
The rate of change of area of a circle with respect to its radius at r= 2 cms is
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1 point
4
2 π
2
4 π
The coefficient of variation of two dimensions are 60 and 70. The standard deviation are 21 and 16 respectively, then their mean is
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1 point
(1) 35
(2) 23
(3) 28.25
(4) 22.85
Two cards are drawn at random from a pack of 52 cards. The probability of these two being “Aces” is
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1 point
(1) 1/26
(2) 1/221
(3) 1/2
(4) 1/13
A bag contains 17 tickets numbered from 1 to 7. A ticket is drawn at random, then another ticket is drawn without replacing the first one. The probability that both the tickets may show even numbers by
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1 point
(1)7/34
(2) 8/17
(3) 7/16
(4) 7/17
Two dice are thrown simultaneously, the probability of obtaining a total score of 5 is
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1 point
(1) 1/18
(2) 1/12
(3) 1/9
(4) 1/6
3 + 5 + 7 + . . . . to n term is
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1 point
(1) n ( n+2)
(2) n (n-2)
(3) n2
(4) (n+1)2
Equation of line passing through the point (1, 2) and perpendicular to the line y = 3x – 1 is
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1 point
(1) x + 3y – 7 = 0
(2) x + 3y + 7 = 0
(3) x + 3y = 0
(4) x – 3y = 0
The perpendicular distance of the point P(6, 7, 8) from XY-plane is
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1 point
(1) 8
(2) 7
(3) 6
(4) 5
If coefficient of variation is 60 and standard deviation is 24, then Arithmetic mean is
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1 point
(1) 1/40
(2) 7/20
(3) 40
(4) 20/7
If a matrix A is both symmetric and skew symmetric, then
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1 point
(1) A is diagonal matrix
(2) A is a zero matrix
(3) A is square matrix
(4) A is scalar matrix
The area of triangle with vertices (K, 0), (4, 0), (0, 2) is 4 square units, then value of K is
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1 point
(1 ) 0
(2) 8
(3) 0 or 8
(4) 0 or -8
The area of the region bounded by the curve y = x2 and the line y = 16 is
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1 point
(1) 32/3 sq. units
(2) 128/3 sq. units
(3) 256/3 sq. units
(4) 64/3 sq. units
Area of the region bounded by the curve y = cos x, x=0 and x= π is
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1 point
(1) 2 sq. units
(2) 3 sq. units
(3) 4 sq. units
(4) 1 sq. unit
If an LPP admits optimal solution at two consecutive vertices of a feasible region, then
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1 point
(1) the required optimal solution is at the midpoint of the line joining two points.
(2) the optimal solution occurs at every point on the line of joining these two points
(3) the LPP under consideration is not solvable
(4) the LPP under consideration must be reconstructed
The number of ways in which 5 girls and 3 boys can be seated in a row so that no two boys are together is
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1 point
(A) 14040
(B) 14440
(C) 14000
(D) 14400
The negation of the statement “72 is divisible by 2 and 3” is
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1 point
(A) 72 is not divisible by 2 or 72 is not divisible by 3
(B) 72 is divisible by 2 or 72 is divisible by 3
(C) 72 is divisible by 2 and 72 is divisible by 3
(D) 72 is not divisible by 2 and 3
Approximate change in the volume V of a cube of side x metres caused by increasing the side by 3% is
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1 point
(A) 3 3 0.09x m
(B) 3 3 0.03x m
(C) 3 3 0.06x m
(D) 3 3 0.04x m
The locus represented by xy+yz=0 is
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1 point
(A) a pair of perpendicular lines
(B) a pair of parallel lines
(C) a pair of parallel planes
(D) a pair of perpendicular planes
The input characteristics of a transistor in CE mode is the graph obtained by plotting
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1 point
1. IB against IC at constant VCE
2. IB against VBE at constant VCE
3. IB against IC at constant VBE
4. IB against VCE at constant VBE
Nature of equipotential surface for a point charge is
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1 point
1. Plane with charge on surface
2. Sphere with charge on the surface of the sphere
3. Sphere with charge at the center of the sphere
4. Ellipsoid with charge at foci
Four identical cells of emf E and internal resistance r are to be connected in series. Suppose if one of the cell is connected wrongly, the equivalent emf and effective internal resistance of the combination is
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1 point
1. 2E and 4r
2. 4E and 4r
3. 2E and 2r
4. 4E and 2r
A spring stretched by applying a load to free end. The strains produce spring is
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1 point
1. Longitudinal
2. Longitudinal & Shear
3. Shear
4. Volumetric
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