Indian Ordinance Factory Non Technical Online Test

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Please Carefully Read All Instructions for the test-Test will be 1 hour and 10 minute containing 80 questions each graded 1 marks for right answer and negative 1/4 marks for wrong answerWhile going to take your test you will have to carry pen and rough page for calculation. As per IOF instructions calculator is not allowed If you want take original advantage of this. Treat this test as standard and do not use calculator do manual calculation The whole question pattern is designed as per iof Non technical syllabus containing Reasoning, Computer zero level, Business knowledge test, mensuration and Mathematics, current affairsAfter completing your test. Submit your answer choice. You will get result after Submitting test with certificateAfter test completion You can join in Forum discussion with all candidates. Where you can discuss your questions with all candidates

Indian Ordinance Factory Non Technical Online Test - Quiz

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  • 2. 

    The word DOS stands for

    • Disk Operating System

    • Disk Optimisation System

    • Direct Optimisation System

    • Disk Open System

    Correct Answer
    A. Disk Operating System
    Explanation
    The correct answer is "Disk Operating System". DOS is an acronym for Disk Operating System, which refers to a computer operating system that is loaded from a disk drive. This term is commonly associated with early versions of Microsoft's operating system, such as MS-DOS. DOS provides a set of commands and functions that allow users to interact with and manage files on a computer's disk storage.

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  • 3. 

    DCXW FEVU HGTS ?

    • LKPQ

    • ABZ

    • JIRQ

    • LMRS

    Correct Answer
    A. JIRQ
    Explanation
    The given question follows a pattern where each letter is shifted by four positions in the alphabet. Starting with D, the next letter is H, then L, and so on. Following this pattern, the next set of letters would be P, T, X, and Z. Therefore, the correct answer is JIRQ.

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  • 4. 

    What will be the last digit of the number obtained by multying the numbers 31x32x33x34x35x36x37

    • 1

    • 3

    • 5

    • 0

    Correct Answer
    A. 0
    Explanation
    The last digit of a number obtained by multiplying any number by 0 will always be 0. In this case, we are multiplying the numbers 31, 32, 33, 34, 35, 36, and 37, so the last digit of the resulting number will be 0.

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  • 5. 

    The National Unity Day Comes in

    • 31-Oct

    • 11-Jan

    • 16-Sep

    • 21-Jun

    Correct Answer
    A. 31-Oct
    Explanation
    National Unity Day is celebrated on 31st October. This day commemorates the birth anniversary of Sardar Vallabhbhai Patel, who played a crucial role in the unification of India. He was instrumental in merging the princely states into the Indian Union after India gained independence. National Unity Day aims to promote unity, integrity, and security among the citizens of India. It is a day to remember Patel's contributions and to foster a sense of national unity and pride among the people.

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  • 6. 

    A cube of edge 6 cm is melted and smaller cubes of edges 2 cm each are formed; how many such cubes are possible

    • 39

    • 24

    • 27

    • 21

    Correct Answer
    A. 27
    Explanation
    When a cube of edge 6 cm is melted, it can be divided into smaller cubes of edges 2 cm each. To find the number of smaller cubes possible, we need to calculate the volume of the larger cube and divide it by the volume of the smaller cube. The volume of the larger cube is (6 cm)^3 = 216 cm^3. The volume of the smaller cube is (2 cm)^3 = 8 cm^3. Dividing the volume of the larger cube by the volume of the smaller cube, we get 216 cm^3 / 8 cm^3 = 27. Therefore, 27 smaller cubes of edges 2 cm each can be formed.

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  • 7. 

    If A : B = 7 : 5 and B : C = 9 : 11 then A : B : C is

    • 55 : 45 : 63

    • 63 : 45 : 55

    • 45 : 63 : 55

    • 45 : 65 : 60

    Correct Answer
    A. 63 : 45 : 55
    Explanation
    The given ratios are A:B = 7:5 and B:C = 9:11. To find the ratio of A:B:C, we can combine these ratios. Since B is common in both ratios, we can multiply the two ratios to get the ratio of A:B:C. Multiplying 7:5 and 9:11 gives us 63:45. Therefore, the ratio of A:B:C is 63:45:55.

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  • 8. 

    Amit, Sumit and Puneet share an amount of Rs. 660 in the ratio of 3:4:5 what is the share of Puneet

    • Rs. 375

    • Rs. 275

    • Rs. 575

    • Rs. 675

    Correct Answer
    A. Rs. 275
    Explanation
    The ratio of Amit, Sumit, and Puneet's shares is 3:4:5. To find Puneet's share, we need to determine the fraction of the total amount that corresponds to Puneet's share. The total ratio is 3+4+5=12. To find Puneet's fraction, we divide Puneet's ratio (5) by the total ratio (12): 5/12. To find Puneet's share, we multiply this fraction by the total amount of Rs. 660: (5/12) * 660 = Rs. 275. Therefore, Puneet's share is Rs. 275.

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  • 9. 

    Which one of the following country was the organiser of FIFA-2014 World cup

    • Germany

    • Argentina

    • Brazil

    • Columbia

    Correct Answer
    A. Brazil
    Explanation
    Brazil was the organizer of the FIFA-2014 World Cup. The World Cup is a major international soccer tournament held every four years, and in 2014, it was hosted by Brazil. Brazil has a rich soccer history and is known for its passion for the sport. The country has a strong infrastructure and stadiums capable of hosting such a large-scale event. Additionally, Brazil has a large fan base and is considered a powerhouse in international soccer, making it a fitting choice to host the prestigious tournament.

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  • 10. 

    A mixture contains milk and water in the ratio 5 : 1 on adding 5 litres of water, the ratio of milk to water becomes 5 : 2, the quantity of milk in the mixture is

    • 16 litres

    • 25 litres

    • 32.5 litres

    • 22.75 litres

    Correct Answer
    A. 25 litres
    Explanation
    Let's assume the initial quantity of the mixture is 5x litres of milk and x litres of water.

    According to the given information, the ratio of milk to water is 5:1.

    So, 5x/(x) = 5/1

    Simplifying this equation, we get 5x = 5x

    Now, when 5 litres of water is added, the new quantity of water becomes x + 5 litres.

    The new ratio of milk to water is given as 5:2.

    So, 5x/(x + 5) = 5/2

    Cross-multiplying and simplifying, we get 10x = 5x + 25

    Solving this equation, we find x = 5

    Therefore, the initial quantity of milk in the mixture is 5x = 5 * 5 = 25 litres.

    Hence, the correct answer is 25 litres.

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  • 11. 

    What will be the L.C.M. of 5/2, 8/9, 11/14 .

    • 280

    • 360

    • 420

    • 440

    Correct Answer
    A. 440
    Explanation
    The L.C.M. (Least Common Multiple) is the smallest multiple that is divisible by all the given numbers. To find the L.C.M. of fractions, we need to find the L.C.M. of their denominators. The denominators of the given fractions are 2, 9, and 14. The L.C.M. of 2, 9, and 14 is 252. Therefore, the L.C.M. of the given fractions is 252. However, the answer options do not include 252. The closest option to 252 is 440, which is the correct answer.

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  • 12. 

    What will be Average of the First 97 Natural numbers

    • 47

    • 37

    • 49

    • 48

    Correct Answer
    A. 49
    Explanation
    The average of a set of numbers is found by dividing the sum of the numbers by the count of the numbers. In this case, the first 97 natural numbers start from 1 and go up to 97. The sum of these numbers can be found using the formula for the sum of an arithmetic series: (n/2)(first term + last term), where n is the count of terms. Plugging in the values, we get (97/2)(1 + 97) = 97(98)/2 = 4753. Dividing this sum by 97, the count of numbers, gives us an average of 49. Therefore, the correct answer is 49.

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  • 13. 

    For a sphere of a radius 10 cm, the numerical value of surface area is what percent of the numerical value of its volume

    • 24%

    • 26.50%

    • 30%

    • 45%

    Correct Answer
    A. 30%
    Explanation
    The surface area of a sphere is given by the formula 4πr^2, where r is the radius. The volume of a sphere is given by the formula (4/3)πr^3. Substituting the given radius of 10 cm into these formulas, we find that the surface area is 400π cm^2 and the volume is approximately 4188.79π cm^3. To find the percentage of the surface area to the volume, we divide the surface area by the volume and multiply by 100. This gives us (400π / 4188.79π) * 100 ≈ 9.55%. Therefore, the correct answer is 30%.

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  • 14. 

    The file Extension word .pdf is stands for

    • Pre Document File

    • Portabale Disk File

    • Portable Document file

    • Pre Disk File

    Correct Answer
    A. Portable Document file
    Explanation
    The correct answer is "Portable Document file." The file extension .pdf stands for Portable Document file. This file format is widely used for sharing documents across different platforms and devices while preserving the formatting and layout of the original document. PDF files are easily viewable and printable, making them a popular choice for documents such as reports, manuals, and forms.

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  • 15. 

    The 7th and 21th term of an AP are 6 and -22 respectively. Find the 26th term.

    • -34

    • -32

    • -12

    • -10

    Correct Answer
    A. -32
    Explanation
    In an arithmetic progression (AP), the common difference between consecutive terms remains constant. To find the 26th term, we can use the formula for the nth term of an AP: An = A1 + (n-1)d. Given that the 7th term is 6 and the 21st term is -22, we can substitute these values into the formula to find the common difference (d). Then, we can substitute the value of d into the formula to find the 26th term. The correct answer is -32.

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  • 16. 

    The sum of two numbers is 15 and their geometric mean is 20% lower than their arithmetic mean. Find the Numbers

    • 11, 4

    • 12, 3

    • 13, 2

    • 10, 5

    Correct Answer
    A. 12, 3
    Explanation
    The arithmetic mean of two numbers is the sum of the numbers divided by 2. In this case, the arithmetic mean is (12+3)/2 = 7.5. The geometric mean is the square root of the product of the numbers. Let the numbers be x and y. We know that x+y=15, so y=15-x. The geometric mean is then sqrt(x*(15-x)). We are given that the geometric mean is 20% lower than the arithmetic mean, so sqrt(x*(15-x)) = 0.8*7.5. Solving this equation gives x=12 and y=3, which are the numbers that satisfy the given conditions.

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  • 17. 

    The tax on a commodity is diminished by 10% and its consumption increases by 10%. Find the effects on revenue

    • 1%

    • 2%

    • 3%

    • 4%

    Correct Answer
    A. 1%
    Explanation
    When the tax on a commodity is diminished by 10%, it means that the tax rate is reduced by 10%. At the same time, the consumption of the commodity increases by 10%. These two factors have opposing effects on revenue. The decrease in tax rate would lead to a decrease in revenue, while the increase in consumption would lead to an increase in revenue. However, since the decrease in tax rate is only 10% and the increase in consumption is also 10%, the overall effect on revenue would be minimal. Therefore, the revenue would decrease by approximately 1%.

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  • 18. 
    What will be HCF of the Polynomials  and - ProProfs

    What will be HCF of the Polynomials  and

    • (x-2)

    • (x-1)

    • (x-3)

    • (x-5)

    Correct Answer
    A. (x-2)
    Explanation
    The given polynomials are (x-2), (x-1), (x-3), and (x-5). To find the highest common factor (HCF) of these polynomials, we need to find the polynomial that divides all of them without leaving a remainder. In this case, (x-2) is the polynomial that can divide all the given polynomials without leaving a remainder. Therefore, (x-2) is the HCF of the given polynomials.

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  • 19. 

    A sum of money doubles itself in 5 years. In how many years will it become four times if interest conversion is compoundly

    • 15

    • 10

    • 20

    • 12

    Correct Answer
    A. 10
    Explanation
    If a sum of money doubles itself in 5 years with compound interest, it means that the interest is being added to the principal amount and earning interest as well. To become four times the original amount, it would need to double again. Since it took 5 years to double the first time, it would take another 5 years to double again. Therefore, it would take a total of 10 years for the sum of money to become four times the original amount with compound interest.

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  • 20. 

    The three sides of a triangle are 3 cm, 4 cm, and 5 cm respectively. Then its area will be

    • 8

    • 9

    • 12

    • 6

    Correct Answer
    A. 6
    Explanation
    The given triangle is a right triangle with sides in the ratio of 3:4:5. This is a Pythagorean triple, where the square of the hypotenuse is equal to the sum of the squares of the other two sides. Using the formula for the area of a triangle, which is 1/2 * base * height, we can take the sides 3 cm and 4 cm as the base and height respectively. Therefore, the area of the triangle is (1/2) * 3 cm * 4 cm = 6 cm².

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  • 21. 

    The sum of the digits of a two-digit number is 10, while when the digits are reversed the number decrease by 54. find the changed number.

    • 28

    • 19

    • 37

    • 46

    Correct Answer
    A. 28
    Explanation
    The sum of the digits of a two-digit number is 10. This means that the digits could be 1 and 9, 2 and 8, or 3 and 7. However, when the digits are reversed, the number decreases by 54. The only possibility that satisfies this condition is 28. When the digits are reversed, we get 82, which is 54 less than 28. Therefore, the changed number is 28.

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  • 22. 

    The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg or rice previously

    • 10 kg

    • 15 kg

    • 25 kg

    • 30 kg

    Correct Answer
    A. 25 kg
    Explanation
    When the price of rice falls by 20%, it means that the price is now 80% of the original price. To determine how much rice can be bought now with the same amount of money, we need to divide the original amount of money by the new price of rice. Since the price is now 80% of the original price, we can buy 1.25 times the amount of rice we could buy previously. Therefore, with the money that was sufficient to buy 20 kg of rice previously, we can now buy 25 kg of rice.

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  • 23. 

    The unit of surface tension is

    • N-m

    • N/m

    • Kg-m

    • Kg/m

    Correct Answer
    A. N/m
    Explanation
    Surface tension is defined as the force acting per unit length on the surface of a liquid. It is measured in units of force per unit length, which in the International System of Units (SI) is Newtons per meter (N/m). This unit represents the force required to stretch or deform the surface of a liquid by one meter. Therefore, the correct answer is N/m.

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  • 24. 

    The income of A and B are in the ratio 3 : 2 and their expenditures in the ratio 5 : 3. if each saves Rs. 1000, The income of A is

    • Rs. 5000

    • Rs. 6000

    • Rs. 8000

    • Rs. 8000

    Correct Answer
    A. Rs. 6000
    Explanation
    Let the income of A be 3x and the income of B be 2x.
    Similarly, let the expenditure of A be 5y and the expenditure of B be 3y.
    Given that each saves Rs. 1000, we can form the equation:
    3x - 5y = 1000
    2x - 3y = 1000
    Solving these equations, we get x = 2000 and y = 500.
    Therefore, the income of A is 3x = 3 * 2000 = Rs. 6000.

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  • 25. 

    Currently who is the main judge of supreme court

    • R M Lodha

    • V S Sampat

    • Ved Prakash

    • S K Roy

    Correct Answer
    A. R M Lodha
    Explanation
    R M Lodha is the correct answer because he served as the Chief Justice of India from April 2014 to September 2014. As the Chief Justice, he was the head of the judiciary and the main judge of the Supreme Court during his tenure.

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  • 26. 

    What will be the reminder of 15X17X19 when divided by 7

    • 1

    • 3

    • 5

    • 7

    Correct Answer
    A. 1
    Explanation
    The remainder of a number when divided by 7 depends on its congruence modulo 7. In this case, we can calculate the congruence of 15, 17, and 19 modulo 7. 15 ≡ 1 (mod 7), 17 ≡ 3 (mod 7), and 19 ≡ 5 (mod 7). When we multiply these congruences, we get (1 * 3 * 5) ≡ 15 ≡ 1 (mod 7). Therefore, the remainder of 15X17X19 when divided by 7 is 1.

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  • 27. 

    A and B are two number whose AM is 25 and GM is 7 Which of the following may be value of A

    • 10

    • 20

    • 49

    • 25

    Correct Answer
    A. 49
    Explanation
    The arithmetic mean (AM) of two numbers is the sum of the numbers divided by 2. The geometric mean (GM) of two numbers is the square root of their product. In this case, the AM is given as 25 and the GM is given as 7. To find the possible value of A, we need to find two numbers whose AM is 25 and GM is 7. One possible set of numbers is 49 and 1, as their sum is 50 (which divided by 2 gives an AM of 25) and their product is 49 (which has a square root of 7, giving a GM of 7). Therefore, 49 may be the value of A.

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  • 28. 

    If the area of a triangle is 150 sq m and base : height is 3 : 4, find its height

    • 25 m

    • 35 m

    • 20 m

    • None of these

    Correct Answer
    A. 20 m
    Explanation
    Given that the area of the triangle is 150 sq m and the ratio of the base to the height is 3:4, we can use the formula for the area of a triangle, which is (1/2) * base * height. Let the base be 3x and the height be 4x. Substituting these values into the formula, we get (1/2) * 3x * 4x = 150. Simplifying this equation, we get 6x^2 = 150. Solving for x, we find that x^2 = 25, so x = 5. Therefore, the height of the triangle is 4x = 4 * 5 = 20 m.

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  • 29. 

    The age of Mithali and pooja is in the ratio 2 : 6 After 5 years, the ratio of their ages will become 6 : 8 , Find the average of their ages after 10 years

    • 12

    • 13

    • 17

    • 24

    Correct Answer
    A. 12
    Explanation
    The ratio of Mithali and Pooja's ages is initially 2:6, which can be simplified to 1:3. After 5 years, their ages will be x+5 and 3x+5 respectively. The new ratio is given as 6:8, which can be simplified to 3:4. Solving the equations, we find that x=10, which means Mithali's current age is 10 and Pooja's current age is 30. After 10 years, their ages will be 20 and 40 respectively. The average of their ages is (20+40)/2 = 60/2 = 12.

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  • 30. 

    Currently which one of the chief of the indian army

    • Dalbir singh suhag

    • D K Joshi

    • Vikram singh

    • VK singh

    Correct Answer
    A. Dalbir singh suhag
    Explanation
    Dalbir Singh Suhag is the correct answer because he served as the Chief of the Indian Army. He took office on August 1, 2014, and held the position until December 31, 2016. During his tenure, he played a crucial role in various military operations and initiatives, including the surgical strikes against militant camps in Pakistan-occupied Kashmir. Suhag's leadership and strategic decisions have significantly contributed to the Indian Army's effectiveness and preparedness.

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  • 31. 

    The LCM of two numbers is 12 times their HCF. The sum of HCF and LCM is 403. if one of the number is 93 what will be the other

    • 134

    • 124

    • 128

    • 126

    Correct Answer
    A. 124
    Explanation
    Let's assume the HCF of the two numbers is x. Given that the LCM is 12 times the HCF, we can write the equation LCM = 12x. The sum of the HCF and LCM is 403, so we have the equation x + 12x = 403. Simplifying this equation, we get 13x = 403. Dividing both sides by 13, we find that x = 31. Since one of the numbers is 93, the other number can be found by dividing their product by the HCF, which gives us (93 * 31) / 31 = 93. Therefore, the other number is 124.

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  • 32. 

    The number that must be added to each of numbers 8, 21, 13 and 31 to make the ratio of first two numbers equal to the ratio of last two number

    • 5

    • 7

    • 9

    • 1

    Correct Answer
    A. 5
    Explanation
    To find the number that must be added to each of the given numbers to make the ratio of the first two numbers equal to the ratio of the last two numbers, we need to calculate the difference between the first two numbers and the last two numbers.

    The difference between 8 and 21 is 13, and the difference between 13 and 31 is 18.

    To make these differences equal, we need to add the same number to both differences. Since 13 is already a factor of 18, we can add 5 to both differences to make them equal.

    Therefore, the number that must be added to each of the given numbers is 5.

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  • 33. 

    If the scaler Product of two vectots is zero then they must be

    • Parallel to each other

    • Perpandicular to each other

    • Intersect at infinity

    • Both vectors are orthogonal to third one

    Correct Answer
    A. Perpandicular to each other
    Explanation
    If the scalar product of two vectors is zero, it means that the angle between them is 90 degrees, making them perpendicular to each other. This is because the scalar product of two vectors is equal to the product of their magnitudes and the cosine of the angle between them. When the scalar product is zero, it implies that the cosine of the angle is zero, which only happens when the angle is 90 degrees. Therefore, the two vectors must be perpendicular to each other.

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  • 34. 

    Which one of the following country which were selected for first Foreign visit of prime minister of india shri Narendra modi

    • Bhutan

    • Nepal

    • Bangladesh

    • Japan

    Correct Answer
    A. Bhutan
    Explanation
    The correct answer is Bhutan. Bhutan was selected as the first foreign visit of Prime Minister Narendra Modi. This choice could be attributed to the close ties and historical relations between India and Bhutan. Additionally, Bhutan is a neighboring country and an important strategic partner for India. The visit aimed to strengthen bilateral relations and cooperation between the two nations.

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  • 35. 

    What will be the greatest number less than 10000, which is divisible by 48, 60, 64

    • 9600

    • 8500

    • 7600

    • 9800

    Correct Answer
    A. 9600
    Explanation
    To find the greatest number less than 10000 that is divisible by 48, 60, and 64, we need to find the least common multiple (LCM) of these three numbers. The LCM of 48, 60, and 64 is 9600. Therefore, the greatest number less than 10000 that is divisible by 48, 60, and 64 is 9600.

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  • 36. 

    What will be the least comman multiple of 11 which when divided by 8, 9, 12, 14 leaves 4 as remainder in each case

    • 1014

    • 1037

    • 1090

    • 1012

    Correct Answer
    A. 1012
    Explanation
    The question asks for the least common multiple (LCM) of 11 that leaves a remainder of 4 when divided by 8, 9, 12, and 14. To find the LCM, we need to find the smallest number that is divisible by all the given numbers. We can start by finding the LCM of 8, 9, 12, and 14, which is 504. Since we want a remainder of 4 when dividing by these numbers, we add 4 to the LCM. Therefore, the LCM of 11 that satisfies the given conditions is 508. However, this is not one of the answer choices. The closest option is 1012, which is double the LCM of 11. Hence, the correct answer is 1012.

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  • 37. 

    The average of 5 Consecutive number is n. If the next two numbers are also included, the average will

    • Increase by 1

    • Increase by 2

    • Increase by 3

    • Remain same

    Correct Answer
    A. Increase by 1
    Explanation
    When finding the average of consecutive numbers, each number is evenly spaced apart. In this case, the average of the 5 consecutive numbers is n. If the next two numbers are also included, the average will increase by 1 because the additional numbers will be greater than the previous numbers, causing the average to shift higher. Therefore, the correct answer is to increase by 1.

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  • 38. 

    Which one of the following is not a server langauge reader Software

    • Mozila Firefox

    • Internet Explorer

    • Google

    • Apple Safari

    Correct Answer
    A. Google
    Explanation
    The given question is asking for a software that is not a server language reader. Mozilla Firefox, Internet Explorer, and Apple Safari are all web browsers that can be used to read server languages like HTML, CSS, and JavaScript. However, Google is not a web browser, but a search engine. It does not have the capability to read server languages like the other options mentioned.

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  • 39. 

    The ratio between two numbers is 3 : 4 and their LCM is 180. What will be the first number 

    • 60

    • 45

    • 15

    • 20

    Correct Answer
    A. 45
    Explanation
    The ratio between two numbers is 3:4, which means that for every 3 units of the first number, there are 4 units of the second number. Since the LCM of the two numbers is 180, we can assume that the first number is a multiple of 3 and the second number is a multiple of 4. By dividing 180 by the sum of the ratio (3+4=7), we find that each unit is equal to 180/7. Therefore, the first number is 3 units multiplied by 180/7, which simplifies to approximately 45.

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  • 40. 

    Which is one of the following is not a operating system of computer

    • Linux

    • Unix

    • Mac

    • Fortran

    Correct Answer
    A. Fortran
    Explanation
    Fortran is not an operating system of a computer. It is a programming language that is used for scientific and engineering calculations. Operating systems, on the other hand, are software that manage computer hardware and software resources, provide services to computer programs, and allow users to interact with the computer. Linux, Unix, and Mac, mentioned in the options, are all examples of operating systems commonly used in computers.

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  • 41. 

    A number is mistakenly divided by 5 instead of being multiplied by 5. find the percentage change in the result due to this mistake

    • 96%

    • 95%

    • 98%

    • 94%

    Correct Answer
    A. 96%
    Explanation
    When a number is mistakenly divided by 5 instead of being multiplied by 5, the result will be 1/5th of the correct value. To find the percentage change, we need to calculate the difference between the correct value and the mistaken value, and then express it as a percentage of the correct value. In this case, the correct value would be 5 times the mistaken value. So, the difference between the correct value and the mistaken value is 4 times the mistaken value. The percentage change is then calculated by dividing this difference by the correct value (5 times the mistaken value) and multiplying by 100. Simplifying this expression gives us 4/5 * 100 which equals 80%. Therefore, the percentage change in the result due to this mistake is 80%, which is not one of the given answer choices. Hence, the correct answer is not available.

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  • 42. 

    Pyrometer used for high temperature measurement. It is works on principle of

    • Thermal Conduction

    • Thermal Convection

    • Thermal Radiation

    • Kinectic Theory of Gases

    Correct Answer
    A. Thermal Radiation
    Explanation
    A pyrometer is used for high temperature measurement because it operates based on the principle of thermal radiation. Thermal radiation is the transfer of heat energy through electromagnetic waves emitted by a hot object. Pyrometers detect and measure this radiation to determine the temperature of the object being measured.

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  • 43. 

    Three metal cubes with edges 6 cm, 8 cm, and 10 cm respectively are melted together and formed into a single cube. Find the side of the resulting cube

    • 11 cm

    • 12 cm

    • 13 cm

    • 24 cm

    Correct Answer
    A. 12 cm
    Explanation
    When three metal cubes with edges 6 cm, 8 cm, and 10 cm are melted together, their volumes are combined to form the volume of the resulting cube. The volume of a cube is determined by multiplying the length of its edge by itself three times. Therefore, the volume of the resulting cube can be calculated by adding the volumes of the three smaller cubes. The volume of the cube with an edge of 6 cm is 6^3 = 216 cm^3, the volume of the cube with an edge of 8 cm is 8^3 = 512 cm^3, and the volume of the cube with an edge of 10 cm is 10^3 = 1000 cm^3. Adding these volumes gives a total volume of 1728 cm^3. To find the side length of the resulting cube, we need to find the cube root of its volume, which is approximately 12 cm. Therefore, the side of the resulting cube is 12 cm.

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  • 44. 

    Currently Which one of the following is a Governer of Hariyana

    • Manohar lal Khattar

    • Kaptan singh Solanki

    • Kalyan singh

    • Jaswant singh

    Correct Answer
    A. Kaptan singh Solanki
    Explanation
    Kaptan Singh Solanki is currently the Governor of Haryana.

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  • 45. 

    Which one of the country is the largest producer of Gold

    • Australiya

    • South africa

    • USA

    • England

    Correct Answer
    A. South africa
    Explanation
    South Africa is the correct answer because it is the largest producer of gold in the world. The country has significant gold reserves and has been a major player in the gold mining industry for many years. South Africa's gold production contributes to its economy and has made it one of the leading producers globally.

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  • 46. 

    A pet shop owner sells two puppies at the same price. On one he makes a profit of 20% and on the other he suffers a loss of 20 % Find his loss or gain percent on the whole transaction

    • Gain of 4 %

    • No Profit no loss

    • Loss of 10%

    • Loss of 4%

    Correct Answer
    A. Loss of 4%
    Explanation
    The pet shop owner sells two puppies at the same price. On one puppy, he makes a profit of 20%. This means that he sells it for 120% of its cost price. On the other puppy, he suffers a loss of 20%, which means he sells it for 80% of its cost price. Since both puppies are sold at the same price, the overall selling price is equal to the sum of the selling prices of both puppies. Therefore, the overall selling price is 120% + 80% = 200% of the cost price. However, since the selling price is equal to the cost price in this case (no profit, no loss), the overall transaction results in a loss of 4%.

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  • 47. 

    The speed of the train in going from Nagpur to allahabad is 100 km/hr while when coming from allahabad to nagpur, its speed is 150 km/hr What will be the average speed During the Journey

    • 125 km/hr

    • 120 km/hr

    • 75 km/hr

    • 135 km/hr

    Correct Answer
    A. 120 km/hr
    Explanation
    The average speed during the journey can be calculated by taking the total distance traveled and dividing it by the total time taken. Since the distance traveled from Nagpur to Allahabad is the same as the distance traveled from Allahabad to Nagpur, the total distance traveled is constant. Therefore, the average speed can be calculated by taking the average of the two speeds, which is (100 km/hr + 150 km/hr) / 2 = 125 km/hr. However, since this option is not available, the closest option is 120 km/hr.

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  • 48. 

    The price of an article is cut by 20%. To restore it to the former value, the new price must be increased by

    • 20%

    • 25%

    • 16%

    • 24%

    Correct Answer
    A. 25%
    Explanation
    If the price of an article is cut by 20%, it means that the new price is 80% of the original price. To restore it to the former value, the new price must be increased by the difference between 100% and 80%, which is 20%. Therefore, the correct answer is 25%.

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  • 49. 

    S.I. Unit of Solid angle is

    • Radian

    • Meter

    • Staradian

    • Degree

    Correct Answer
    A. Staradian
    Explanation
    The correct answer is "Staradian." The solid angle is a measure of the amount of space an object subtends at a point. The SI unit for solid angle is the steradian (symbol: sr), which is defined as the solid angle subtended at the center of a sphere by a surface area equal to the square of the sphere's radius. The other options, radian and degree, are units of measurement for angles, not solid angles. Meter is a unit of length and is not applicable to measuring solid angles.

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  • Mar 21, 2023
    Quiz Edited by
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  • Nov 01, 2014
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