Explore topic-wise MCQs in C Programming.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your C Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

What will be the output of the program if value given to ?

A. 25
B. 2
C. 1
D. 5
Answer» D. 5
Discussion
2.

Which files will get closed through the in the following program?

A. "A.C" "B.C" "C.C"
B. "B.C" "C.C"
C. "A.C"
D. Error in
Answer» E.
Discussion
3.

To scan and given below, which of the following statement will you use?

A. scanf("%f %f", &a, &b);
B. scanf("%Lf %Lf", &a, &b);
C. scanf("%f %Lf", &a, &b);
D. scanf("%f %lf", &a, &b);
Answer» E.
Discussion
4.

Out of and which function is safe to use?

A. gets()
B. fgets()
Answer» C.
Discussion
5.

Consider the following program and what will be content of ?

A. size of "DUMMY.C" file
B. The handle associated with "DUMMY.C" file
C. Garbage value
D. Error in fileno()
Answer» C. Garbage value
Discussion
6.

are FILE pointers

A. Yes
B. No
Answer» B. No
Discussion
7.

Can we specify a variable filed width in a format string?

A. Yes
B. No
Answer» C.
Discussion
8.

While calling the function in the format string conversion specifier can be used to write a character string in capital letters.

A. True
B. False
Answer» C.
Discussion
9.

Offset used in function call can be a negative number.

A. True
B. False
Answer» B. False
Discussion
10.

We should not read after a write to a file without an intervening call to

A. True
B. False
Answer» B. False
Discussion
11.

In a call to function the format specifier %b can be used to print binary equivalent of an integer.

A. True
B. False
Answer» C.
Discussion
12.

In a file contains the line "I am a boy\r\n" then on reading this line into the array using . What will contain?

A. "I am a boy\r\n\0"
B. "I am a boy\r\0"
C. "I am a boy\n\0"
D. "I am a boy"
Answer» D. "I am a boy"
Discussion
13.

What is the purpose of in function used below in the code?

A. open "source.txt" in binary mode for reading
B. open "source.txt" in binary mode for reading and writing
C. Create a new file "source.txt" for reading and writing
D. None of above
Answer» B. open "source.txt" in binary mode for reading and writing
Discussion
14.

What does point to in the program ?

A. The first character in the file
B. A structure which contains a
C. pointer which points to the first character of a file.
D. The name of the file.
E. The last character in the file.
Answer» C. pointer which points to the first character of a file.
Discussion
15.

To print out and given below, which of the following statement will you use?

A. printf("%f %lf", a, b);
B. printf("%Lf %f", a, b);
C. printf("%Lf %Lf", a, b);
D. printf("%f %Lf", a, b);
Answer» B. printf("%Lf %f", a, b);
Discussion