C Programming MCQ

Test your knowledge with important C Programming MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more C Programming MCQs at Bissoy

• Which of the following cannot be used inside sizeof?
  ক

  pointers

  খ

  functions

  গ

  macro definition

  ঘ

  none of the mentioned
• Which among the following statement is right?
  ক

  sizeof(struct stemp*) > sizeof(union utemp*) > sizeof(char *)

  খ

  sizeof(struct stemp*) < sizeof(union utemp*) < sizeof(char *)

  গ

  sizeof(struct stemp*) = sizeof(union utemp*) = sizeof(char *)

  ঘ

  the order Depends on the compiler
• What type of value does sizeof return?
  ক

  char

  খ

  short

  গ

  unsigned int

  ঘ

  long
• What is the sizeof(void) in a 32-bit C?
  ক

  0

  খ

  1
• Which among the following has the highest precedence?
  ক

  &

  খ

  <<

  গ

  sizeof()

  ঘ

  &&
• %lf is used to display?
  ক

  float

  খ

  long float

  গ

  double

  ঘ

  all of the mentioned
• Modulus for float could be achieved by?
  ক

  a % b

  খ

  modulus(a, [;

  গ

  fmod(a, b);

  ঘ

  mod(a, b);
• Which of the following % operation is invalid?
  ক

  2 % 4;

  খ

  2 % 4l;

  গ

  2 % 4f;

  ঘ

  Both 2 % 4l; and 2 % 4f;
• Select the odd one out with respect to type?
  ক

  char

  খ

  int

  গ

  long

  ঘ

  float
• %f access specifier is used for ________
  ক

  Strings

  খ

  Integral types

  গ

  Floating type

  ঘ

  All of the mentioned
• Loss in precision occurs for typecasting from____________
  ক

  char to short

  খ

  float to double

  গ

  long to float

  ঘ

  float to int
• What is the size of float in a 32-bit compiler?
  ক

  1

  খ

  2

  গ

  4

  ঘ

  8
• In a 32-bit compiler, which 2 types have the same size?
  ক

  char and short

  খ

  short and int

  গ

  int and float

  ঘ

  float and double
• Which among the following is never possible as an output for a float?
  ক

  3.666666

  খ

  3.666

  গ

  3

  ঘ

  None of the mentioned
• How many digits are present after the decimal in float value?
  ক

  1

  খ

  3

  গ

  6

  ঘ

  16
• Which of these is a correct way to generate numbers between 0 to 1(inclusive) randomly?
  ক

  rand() / RAND_MAX

  খ

  rand() % 2

  গ

  rand(0, 1)

  ঘ

  none of the mentioned
• For the function call time(), what type of parameter is accepted?
  ক

  int

  খ

  int *

  গ

  time_t

  ঘ

  time_t *
• Which among the following is correct function call for rand() and random()?
  ক

  rand() and random();

  খ

  rand() and random(1);

  গ

  rand(1) and random(1);

  ঘ

  rand(1) and random();
• Which of the following snippet will effectively generate random numbers?
  ক

  rand();

  খ

  rand(10);

  গ

  rand(time(NULL));

  ঘ

  all of the mentioned
• Which of the following can be used for random number generation?
  ক

  random()

  খ

  rnd()

  গ

  rndm()

  ঘ

  none of the mentioned
• What is the return type of rand() function?
  ক

  short

  খ

  int

  গ

  long

  ঘ

  double
• rand() and srand() functions are used _____________
  ক

  To find sqrt

  খ

  For and operations

  গ

  For or operations

  ঘ

  To generate random numbers
• Which is the correct way to generate numbers between minimum and maximum(inclusive)?
  ক

  minimum + (rand() % (maximum – minimum));

  খ

  minimum + (rand() % (maximum – minimum + 1));

  গ

  minimum * (rand() % (maximum – minimum))

  ঘ

  minimum – (rand() % (maximum + minimum));
• Which is the best way to generate numbers between 0 to 99?
  ক

  rand()-100

  খ

  rand()%100

  গ

  rand(100)

  ঘ

  srand(100)
• What is function srand(unsigned)?
  ক

  Sets the seed for rand

  খ

  Doesn’t exist
• Which among the following mathematical function do not have a “double” return-type?
  ক

  srand(x);

  খ

  ceil(x);

  গ

  floor(x);

  ঘ

  both ceil(x); and floor(x);
• What will cos(x) return?
  ক

  sine of x where x is in radians

  খ

  sine of x where x is in degree

  গ

  cosine of x where x is in radians

  ঘ

  cosine of x where x is in degree
• What will sin(x) returns?
  ক

  sine of x where x is in radians

  খ

  sine of x where x is in degree

  গ

  cosine of x where x is in radians

  ঘ

  cosine of x where x is in degree
• Which mathematical function among the following does NOT require int parameters?
  ক

  div(x, y);

  খ

  srand(x);

  গ

  sqrt(x);

  ঘ

  all of the mentioned
• Which of the following mathematical function requires 2 parameter for successful function call?
  ক

  fmod();

  খ

  div();

  গ

  atan2();

  ঘ

  all of the mentioned