MCQOPTIONS
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MCQOPTIONS
This section includes 174 Mcqs, each offering curated multiple-choice questions to sharpen your C Programming knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Which of the following cannot be used inside sizeof? |
| A. | pointers |
| B. | functions |
| C. | macro definition |
| D. | none of the mentioned |
| Answer» E. | |
| 152. |
How many digits are present after decimal in float value? |
| A. | 1 |
| B. | 3 |
| C. | 6 |
| D. | 16 |
| Answer» D. 16 | |
| 153. |
What is the sizeof(void) in a 32-bit C? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» C. 2 | |
| 154. |
Which of the following is a ternary operator? |
| A. | && |
| B. | >>= |
| C. | ?: |
| D. | -> |
| Answer» D. -> | |
| 155. |
Relational operators cannot be used on ____________ |
| A. | structure |
| B. | long |
| C. | strings |
| D. | float |
| Answer» B. long | |
| 156. |
Which of the following declaration is not supported by C? |
| A. | String str; |
| B. | char *str; |
| C. | float str = 3e2; |
| D. | Both String str; & float str = 3e2; |
| Answer» B. char *str; | |
| 157. |
Which of the following operator has the highest precedence in the following? |
| A. | () |
| B. | sizeof |
| C. | * |
| D. | + |
| Answer» B. sizeof | |
| 158. |
The format identifier '%i' is also used for _____ data type. |
| A. | char |
| B. | int |
| C. | float |
| D. | double |
| Answer» C. float | |
| 159. |
When do you need to use type-conversions? |
| A. | The value to be stored is beyond the max limit |
| B. | The value to be stored is in a form not supported by that data type |
| C. | To reduce the memory in use, relevant to the value |
| D. | All of the mentioned |
| Answer» E. | |
| 160. |
Which of the following are unary operators? |
| A. | sizeof |
| B. | – |
| C. | ++ |
| D. | all of the mentioned |
| Answer» E. | |
| 161. |
What is the precedence of arithmetic operators (from highest to lowest)? |
| A. | %, *, /, +, – |
| B. | %, +, /, *, – |
| C. | +, -, %, *, / |
| D. | %, +, -, *, / |
| Answer» B. %, +, /, *, – | |
| 162. |
enum types are processed by _________ |
| A. | Compiler |
| B. | Preprocessor |
| C. | Linker |
| D. | Assembler |
| Answer» B. Preprocessor | |
| 163. |
Do logical operators in the C language are evaluated with the short circuit? |
| A. | True |
| B. | False |
| C. | Depends on the compiler |
| D. | Depends on the standard |
| Answer» B. False | |
| 164. |
Where in C the order of precedence of operators do not exist? |
| A. | Within conditional statements, if, else |
| B. | Within while, do-while |
| C. | Within a macro definition |
| D. | None of the mentioned |
| Answer» E. | |
| 165. |
Which of the following is possible with any 2 operators in C? |
| A. | Same associativity, different precedence |
| B. | Same associativity, same precedence |
| C. | Different associativity, different precedence |
| D. | All of the mentioned |
| Answer» E. | |
| 166. |
function tolower(c) defined in library works for ___________ |
| A. | Ascii character set |
| B. | Unicode character set |
| C. | Ascii and utf-8 but not EBCDIC character set |
| D. | Any character set |
| Answer» E. | |
| 167. |
Which of the following is an invalid assignment operator? |
| A. | a %= 10; |
| B. | a /= 10; |
| C. | a |= 10; |
| D. | None of the mentioned |
| Answer» E. | |
| 168. |
C99 standard guarantees uniqueness of ____ characters for internal names. |
| A. | 31 |
| B. | 63 |
| C. | 12 |
| D. | 14 |
| Answer» C. 12 | |
| 169. |
Are logical operator sequence points? |
| A. | True |
| B. | False |
| C. | Depends on the compiler |
| D. | Depends on the standard |
| Answer» B. False | |
| 170. |
What is the sizeof(char) in a 32-bit C compiler? |
| A. | 1 bit |
| B. | 2 bits |
| C. | 1 Byte |
| D. | 2 Bytes |
| Answer» D. 2 Bytes | |
| 171. |
%lf is used to display? |
| A. | float |
| B. | long float |
| C. | double |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 172. |
For which of the following, “PI++;” code will fail? |
| A. | #define PI 3.14 |
| B. | char *PI = “A”; |
| C. | float PI = 3.14; |
| D. | none of the Mentioned |
| Answer» B. char *PI = “A”; | |
| 173. |
When double is converted to float, then the value is? |
| A. | Truncated |
| B. | Rounded |
| C. | Depends on the compiler |
| D. | Depends on the standard |
| Answer» D. Depends on the standard | |
| 174. |
Which among the following are the fundamental arithmetic operators, i.e, performing the desired operation can be done using that operator only? |
| A. | +, – |
| B. | +, -, % |
| C. | +, -, *, / |
| D. | +, -, *, /, % |
| Answer» B. +, -, % | |