M3-R4 O-Level Jan-20 MCQ With Answers
M3-R4 O-Level
Jan-20 MCQ
M3-R4 :
PROGRAMMING & PROBLEM SOLVING
THROUGH
‘C’ LANGUAGE
PART-1
Each question below gives a multiple choice of answers. Choose the most appropriate one and enter in the “OMR” answer sheet supplied with the question paper, following instructions therein. (1x10 )
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1.1 What is the following is invalid header file in C ?
(A) math.h (B) mathio.h
(C) string.h (D) ctype.h
Answer: (B) mathio.h
1.2 Which of the following is not a keyword of 'C' ?
(A) auto (B) case
(C) break (D) function
Answer: (D) function
1.3 Strings are character arrays it always ends with ______.
(A) \n (B) \t
(C) \0 (D) \1
Answer: (C)\0
1.4 Find an integer constant
(A) 3.145
(B) 34
(C) "125"
(D) None of the above
Answer: (B)
1.5 Standard ANSI C recognizes ______ number of keywords.
(A) 16 (B) 32
(C) 64 (D) 128
Answer: (B)
1.6 Which is the only function that all C program must contain?
(A) start() (B) system()
(C) main() (D) scanf()
Answer: (C)
#include<stdio.h>
#include<conio.h>
void main()
{
char a[] = { 'A', 'B', 'C', 'D' };
char* ppp = &a[0];
*ppp++;
printf("%c %c ", *++ppp, --*ppp);
}
(A) C A (B) C B
(C) B C (D) B A
Answer : (A)
1.8 Find output of the following
program
#include <stdio.h>
#include<conio.h>
void main()
{
char ch;
int i;
ch = 'G';
i = ch-'A';
printf("%d", i);
}
(A) 5 (B) 6
(C) 7 (D) 8
Answer: (B) 6
1.9 How many
times is a do while loop guaranteed to loop ?
(A) 0 (B) Infinitely
(C) 1 (D) Variable
Answer: (C) 1
1.10 Which of the
following is not
a proper storage class in 'C'?
(A) auto (B) dec
(C) static (D) extern
Answer: (B)
