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MCQOPTIONS
This section includes 200950 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 199901. |
A resistance of 2 W is connected across one gap of a meter-bridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2W, is connected across the other gap. When the resistances are interchanged, the balance point shifts by 20 cm. the unknown resistance is? |
| A. | 3Ω |
| B. | 4Ω |
| C. | 6Ω |
| D. | 5Ω |
| Answer» B. 4Ω | |
| 199902. |
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is 3? |
| A. | 4 |
| B. | 5 |
| C. | 2 |
| D. | 0 |
| Answer» B. 5 | |
| 199903. |
The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is |
| A. | chain isomerism |
| B. | functional group isomerism |
| C. | positional isomerism |
| D. | metamerism |
| Answer» D. metamerism | |
| 199904. |
The most extensive, commercially useful source of thorium as monazite sand occurs in India at? |
| A. | Orissa coast |
| B. | Travancore coast |
| C. | West Bengal coast |
| D. | Gujarat coast |
| Answer» C. West Bengal coast | |
| 199905. |
The ionic radii of N3-, O2-, F- and Na follows the order? |
| A. | N3- u003e O2- u003e F- u003e Na+ |
| B. | N3- u003e Na+ u003e O2- u003e F- |
| C. | Na+ u003e O2- u003e N3- u003e F- |
| D. | O2- u003e F- u003e Na+ u003e N3- |
| Answer» B. N3- u003e Na+ u003e O2- u003e F- | |
| 199906. |
The graphite rods in the nuclear reactor... |
| A. | react with U to release energy |
| B. | produce neutrons |
| C. | undergo combustion which triggers the nuclear fission |
| D. | convert fast moving neutrons into thermal neutrons |
| Answer» E. | |
| 199907. |
The mass number of a nucleus is...... |
| A. | always less than its atomic number |
| B. | the sum of the number of protons and neutrons present in the nucleus |
| C. | always more than the atomic weight |
| D. | a fraction |
| Answer» C. always more than the atomic weight | |
| 199908. |
The inexpensive and commonly used variety of glass is called soda glass. It is called so because...... |
| A. | was used initially for making bottles of soda(carbonated drink |
| B. | is made using soda(sodium carbonate) |
| C. | was initially used for storing sodium carbonate |
| D. | is made using soda lime |
| Answer» C. was initially used for storing sodium carbonate | |
| 199909. |
Th oil used in the froth floatation process is? |
| A. | coconut oil |
| B. | olive oil |
| C. | kerosene oil |
| D. | pine oil |
| Answer» E. | |
| 199910. |
The number of waves in n x 10th Bohr's orbit are? |
| A. | n2 |
| B. | n |
| C. | n-2 |
| D. | n3 |
| Answer» C. n-2 | |
| 199911. |
The Latin word formica means ant. The name formic acid is derived from this Latin word because? |
| A. | this acid, in ancient times, was used to eliminate ant-hills |
| B. | this corrosive acid is secreted by ants to drive away their enemies |
| C. | this acid was first obtained by the distillation of ants |
| D. | ants are attracted by the odour of this acid |
| Answer» D. ants are attracted by the odour of this acid | |
| 199912. |
The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called?n |
| A. | granite |
| B. | basalt |
| C. | igneous rocks |
| D. | sedimentary rocks |
| Answer» D. sedimentary rocks | |
| 199913. |
The number of d-electrons in Fe2 (Zn= 26) is not equal to that of- |
| A. | p-electrons in Ne(Z = 10) |
| B. | s-electrons in Mg(Z = 12) |
| C. | d-electrons in Fe(Z = 26) |
| D. | p-electrons in CI(Z = 17) |
| Answer» E. | |
| 199914. |
The probability that annelectronic device produced by a company does not function properly is equal ton0.1. If 10 devices are bought, then the probability, to the nearest thousandth,nthat 7 devices function properly is |
| A. | 0.057 |
| B. | 0.478 |
| C. | 0.001 |
| D. | 0 |
| Answer» B. 0.478 | |
| 199915. |
When a metallic ballnbearing is placed inside a cylindrical container, of radius 2 cm, the height ofnthe water, inside the container, increases by 0.6 cm. The radius, to thennearest tenth of a centimeter, of the ball bearing is |
| A. | 1 cm |
| B. | 1.2 cm |
| C. | 2 cm |
| D. | 0.6 cm |
| Answer» C. 2 cm | |
| 199916. |
The period of | sin (3x) | is |
| A. | 2 pi |
| B. | 2 pi / 3 |
| C. | pi / 3 |
| D. | 3 pi |
| Answer» D. 3 pi | |
| 199917. |
The period of 2 sin x cos x is........... |
| A. | 4 pi 2 |
| B. | 2 pi |
| C. | 4 pi |
| D. | pi |
| Answer» E. | |
| 199918. |
If f(x) is an odd function,then | f(x) | is |
| A. | an odd function |
| B. | an even function |
| C. | neither odd nor even |
| D. | even and odd |
| Answer» C. neither odd nor even | |
| 199919. |
A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is ? |
| A. | 10 |
| B. | 15 |
| C. | 2100 |
| D. | 8 |
| Answer» D. 8 | |
| 199920. |
The mean of a data set isnequal to 10 and its standard deviation is equal to 1. If we add 5 to each datanvalue, then the mean and standard deviation become |
| A. | mean = 15 , standard deviation = 6 |
| B. | mean = 10 , standard deviation = 6 |
| C. | mean = 15 , standard deviation = 1 |
| D. | mean = 10 , standard deviation = 1 |
| Answer» D. mean = 10 , standard deviation = 1 | |
| 199921. |
The exam scores of all 500 students were recorded and it was determined that these scores were normally distributed. If Jane's score is 0.8 standard deviation above the mean, then how many, to the nearest unit, students scored above Jane? |
| A. | 394 |
| B. | 250 |
| C. | 400 |
| D. | 106 |
| Answer» E. | |
| 199922. |
Five different books (A, B,nC, D and E) are to be arranged on a shelf. Books C and D are to be arrangednfirst and second starting from the right of the shelf. The number of differentnorders in which books A, B and E may be arranged is |
| A. | 5! |
| B. | 3! |
| C. | 2! |
| D. | 3! * 2! |
| Answer» C. 2! | |
| 199923. |
The graphs of the two equations y = a x 2 + b x+ c and y = A x 2 + B x+ C, such that a and A have different signs and that the quantities b 2 - 4 a c and B 2 - 4 A C are both negative.. |
| A. | intersect at two points |
| B. | intersect at one point |
| C. | do not intersect |
| D. | none of the above |
| Answer» D. none of the above | |
| 199924. |
For x greater than or equal to zero and less than or equal to 2 pi, sin x and cos x are both decreasing on the intervals |
| A. | 0 , pi/2) |
| B. | (pi/2 , pi) |
| C. | (pi , 3 pi / 2) |
| D. | (3 pi / 2 , 2 pi |
| Answer» C. (pi , 3 pi / 2) | |
| 199925. |
The three solutions of the equation f(x) = 0 are - 4, 8, and 11. Therefore, the three solutions of the equation f(2 x) = 0 are |
| A. | - 2, 4, and 11/2 |
| B. | - 8, 16 and 22 |
| C. | - 4, 8, and 11 |
| D. | 2, 19 / 2 and 7 / 2 |
| Answer» B. - 8, 16 and 22 | |
| 199926. |
f is a quadratic function whose graph is a parabola opening upward and has a vertex on the x-axis. The graph of the new function g defined by g(x) = 2 - f(x - 5) has a range defined by the interval .... |
| A. | [ -5 , + infinity) |
| B. | [ 2 , + infinity) |
| C. | ( - infinity , 2] |
| D. | ( - infinity , 0] |
| Answer» D. ( - infinity , 0] | |
| 199927. |
When a parabola represented by the equation y - 2x 2 = 8 x+ 5 is translated 3 units to the left and 2 units up, the new parabola has its vertex at ? |
| A. | (-5 , -1) |
| B. | (-5 , -5) |
| C. | (-1 , -3) |
| D. | (-2 , -3) |
| Answer» B. (-5 , -5) | |
| 199928. |
The graphs of the two linear equations ax+ by = c and bx - ay = c, where a, b and c are all not equal to zero, |
| A. | are parallel |
| B. | intersect at one point |
| C. | intersect at two points |
| D. | perpendicular |
| Answer» E. | |
| 199929. |
f is a function such that f(x) u003c 0. The graph of the new function g defined by g(x) = | f(x) | is a reflection of the graph of f |
| A. | on the y axis |
| B. | on the x axis |
| C. | on the line y = x |
| D. | on the line y = - x |
| Answer» C. on the line y = x | |
| 199930. |
20 % of 2 is equal to ? |
| A. | 20 |
| B. | 4 |
| C. | .4 |
| D. | .04 |
| Answer» D. .04 | |
| 199931. |
If Log 4 (x) = 12, then log 2 (x / 4) is equal to |
| A. | 11 |
| B. | 48 |
| C. | -12 |
| D. | 22 |
| Answer» E. | |
| 199932. |
If Logx (1 / 8) = - 3 / 2, then x is equal to ? |
| A. | - 4 |
| B. | 4 |
| C. | 1/4 |
| D. | 10 |
| Answer» C. 1/4 | |
| 199933. |
The population of a country increased by an average of 2% per year from 2000 to 2003. If the population of this country was 2000000 on December 31, 2003, then the population of this country on January 1, 2000, to the nearest thousand would have been ? |
| A. | 1 846 000 |
| B. | 1 852 000 |
| C. | 1 000 000 |
| D. | 1 500 000 |
| Answer» B. 1 852 000 | |
| 199934. |
40 quintals is what percent of 2 metric tonnes? |
| A. | 20% |
| B. | 2% |
| C. | 200% |
| D. | 150% |
| Answer» D. 150% | |
| 199935. |
A number, on subtracting 15 from it, reduces to its 80%. What is 40% of that number? |
| A. | 60 |
| B. | 45 |
| C. | 30 |
| D. | 90 |
| Answer» D. 90 | |
| 199936. |
if X is 90 % of Y, what percent of X is Y? |
| A. | 101.1 |
| B. | 190 |
| C. | 90 |
| D. | 111.1 |
| Answer» E. | |
| 199937. |
if x% of y is the same as 4/5 of 80, then the value of xy is ? |
| A. | 320 |
| B. | 400 |
| C. | 640 |
| D. | none |
| Answer» E. | |
| 199938. |
If three fifth of a number is 40 more than 40% of the same number. what is the number? |
| A. | 100 |
| B. | 150 |
| C. | 200 |
| D. | 400 |
| Answer» D. 400 | |
| 199939. |
What will be 160% of a number whose 200% is 140 ? |
| A. | 200 |
| B. | 160 |
| C. | 140 |
| D. | 112 |
| Answer» E. | |
| 199940. |
Subtracting 40% of a number from the number, we get the result as 30.The number is ? |
| A. | 28 |
| B. | 50 |
| C. | 52 |
| D. | 70 |
| Answer» C. 52 | |
| 199941. |
If 75% of a number is added to 75, the result is the number itself. then, the number is ? |
| A. | 400 |
| B. | 300 |
| C. | 60 |
| D. | 50 |
| Answer» C. 60 | |
| 199942. |
if 15 % of 40 is greater than 25 % of a number by 2, the number is ? |
| A. | 16 |
| B. | 20 |
| C. | 24 |
| D. | 32 |
| Answer» B. 20 | |
| 199943. |
What percent of 7.2 kg is 18 gms? |
| A. | 25% |
| B. | 2.5% |
| C. | .25% |
| D. | .025% |
| Answer» D. .025% | |
| 199944. |
If 40% of 40% of x = 40, then x is |
| A. | 100 |
| B. | 400 |
| C. | 250 |
| D. | 1000 |
| Answer» D. 1000 | |
| 199945. |
if 37 % of a number is 990.86, what will be approximately 19 % of that number? |
| A. | 600 |
| B. | 400 |
| C. | 500 |
| D. | 700 |
| Answer» D. 700 | |
| 199946. |
45% of ? + 30 % of 90 = 30 % of 210. |
| A. | 120 |
| B. | 80 |
| C. | 60 |
| D. | 90 |
| Answer» C. 60 | |
| 199947. |
what is 25% of 25% equal to ? |
| A. | 6.25 |
| B. | .625 |
| C. | .0625 |
| D. | .00625 |
| Answer» D. .00625 | |
| 199948. |
if 16% of 40% of a number is 8, the number is ? |
| A. | 125 |
| B. | 225 |
| C. | 335 |
| D. | 445 |
| Answer» B. 225 | |
| 199949. |
One fourth of one third of two fifth of a number is 15. what will be 40% of that number? |
| A. | 120 |
| B. | 350 |
| C. | 270 |
| D. | 180 |
| Answer» E. | |
| 199950. |
Three-fourth of a number exceeds its one-third by 60. The number is ? |
| A. | 108 |
| B. | 144 |
| C. | 270 |
| D. | 350 |
| Answer» C. 270 | |