2905+ MCQ Questions in english

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2905+ MCQ Questions in english हिन्दी

2905. How do you start a for loop in Python?

A. for i to 5:

B. foreach i in range(5):

C. for i in range(5):

D. loop i in 5:

for i in range(5): is the correct syntax.

2904. What does list("abc") return?

A. ["abc"]

B. ['a', 'b', 'c']

C. abc

D. [a, b, c]

Converts a string into a list of characters.

2903. Which of the following is used to define a class in Python?

A. def

B. function

C. class

D. object

Use the class keyword to define a class

2902. What is the result of 3 == 3.0 in Python?

A. True

B. False

C. Error

D. None

Python considers 3 and 3.0 equal in value.

2901. What is the correct way to open a file for writing?

A. open("file.txt", "r")

B. open("file.txt", "w")

C. open("file.txt", "a")

D. open("file.txt", "x")

"w" mode opens the file for writing (overwrites if exists)

2900. Which of these is not a keyword in Python?

A. pass

B. eval

C. assert

D. lambda

eval is a built-in function, not a keyword.

2899. What is the output of: print("5" + "5")?

A. 10

B. 55

C. Error

D. 5

String concatenation results in "55".

2898. Who appoints the Advocate General of Uttar Pradesh?

A. Chief Justice of High Court

B. Governor

C. President of India

D. Chief Minister

Explanation: The Advocate General is appointed by the Governor of Uttar Pradesh under Article 165 of the Constitution. He or she acts as the highest legal officer of the state and advises the state government on legal matters. The Advocate General has the right to speak in the Legislative Assembly but cannot vote. This post is equivalent to the Attorney General at the central level. The person must be qualified to be a High Court judge.

2897. Which built-in method returns the character at the specified index in a string?

A. getCharAt()

B. charAt()

C. char()

D. characterAt()

2896. What is the correct syntax for a ternary operator?

A. condition ? expr1 : expr2

B. condition : expr1 ? expr2

C. condition ? expr1 , expr2

D. condition : expr1 , expr2

2895. What keyword is used to handle exceptions?

A. catch

B. except

C. error

D. handle

2894. What will typeof [] return?

A. "array"

B. "object"

C. "list"

D. "collection"

2893. How do you call a function named myFunction?

A. call myFunction()

B. myFunction()

C. call function myFunction()

D. Call.myFunction()

2892. Which of these is used to define a JavaScript class?

A. function

B. let

C. class

D. module

2891. How to check if a is not equal to b in value and type?

A. a != b

B. a !== b

C. a =! b

D. a <> b

2890. Which of the following loops will always execute at least once?

A. for

B. while

C. do…while

D. foreach

2889. What will console.log(typeof null) print?

A. “null”

B. “object”

C. “undefined”

D. “number”

2888. What does Array.prototype.map() do?

A. Filters elements

B. Invokes a callback for each element and returns a new array

C. Sorts elements

D. Reduces elements to a single value

2887. How do you round 7.25 to the nearest integer

A. Math.rnd(7.25)

B. round(7.25)

C. Math.round(7.25)

D. Math.floor(7.25)

2886. Which keyword declares a block-scoped variable?

A. var

B. let

C. const

D. Both B and C

2885. What will 0.1 + 0.2 === 0.3 return?

A. true

B. false

C. null

D. undefined

2884. Which method converts a JSON string to an object?

A. JSON.toObject()

B. JSON.parse()

C. JSON.stringify()

D. JSON.objectify()

2883. What does typeof NaN return?

A. "number"

B. "NaN"

C. "undefined"

D. "object"

2882. Which symbol is used for comments in JavaScript?

A.

B.

C. Both B and C

D. /* */

2881. Which of the following is not a JavaScript data type?

A. Undefined

B. Number

C. Float

D. Boolean

2880. How do you write "Hello World" in an alert box?

A. msg("Hello World");

B. alertBox("Hello World");

C. alert("Hello World");

D. msgBox("Hello World");

2879. Which gas is used in the manufacture of ammonia in the Haber process?

A. Oxygen

B. Hydrogen

C. Carbon dioxide

D. Methane

Explanation: In the Haber process, nitrogen and hydrogen gases are combined under high pressure and temperature in the presence of an iron catalyst to produce ammonia (NH₃). Hydrogen is typically obtained from natural gas or water electrolysis. Ammonia is essential for fertilizer production. This process revolutionized global agriculture in the 20th century.

2878. Which process helps in the purification of water through natural filtration in the soil?

A. Sublimation

B. Percolation

C. Condensation

D. Evaporation

Explanation: Percolation is the process where water slowly filters through the soil and rocks, helping in the natural purification of water. This movement removes many impurities and harmful organisms. The filtered water eventually collects in underground aquifers. It is crucial in the natural water cycle. Human interference often affects this important ecological function.

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