{"id":172,"date":"2020-04-03T09:26:49","date_gmt":"2020-04-03T09:26:49","guid":{"rendered":"https:\/\/temp.ashkerala.com\/?p=172"},"modified":"2020-04-03T09:26:49","modified_gmt":"2020-04-03T09:26:49","slug":"c-mcq-15","status":"publish","type":"post","link":"https:\/\/temp.ashkerala.com\/?p=172","title":{"rendered":"C++ MCQ-15"},"content":{"rendered":"

Q.76\u00a0\u00a0 Which of the following expressions is illegal?<\/strong>
(A)\u00a0 ( ) 6 10 .\u00a0 (B)\u00a0 (false && true)
(C)\u00a0 bool (x) = (bool)10;\u00a0 (D)\u00a0 float y = 12.67; \u00a0
\u00a0
\u00a0 Ans:C
\u00a0
Q.77\u00a0 The actual source code for implementing a template function is created when <\/strong>\u00a0
(A) The declaration of function appears.
(B) The function is invoked.
(C) The definition of the function appears.\u00a0\u00a0 \u00a0
(D) None of the above.
\u00a0
\u00a0 Ans:B
\u00a0
Q.78\u00a0 An exception is caused by<\/strong>
(A)\u00a0 a runtime error.\u00a0 \u00a0
(B)\u00a0 a syntax error.
(C)\u00a0 a problem in the operating system.
(D)\u00a0 a hardware problem.
\u00a0
\u00a0 Ans:A
\u00a0
Q.79\u00a0\u00a0 Which of the following statements are true in c++?<\/strong>
(A) Classes can not have data as public members.\u00a0 \u00a0
(B) Structures can not have functions as members.
(C) Class members are public by default. \u00a0
(D) None of these.
\u00a0
\u00a0 Ans:B
\u00a0
Q.80\u00a0\u00a0 What would be the output of the following program?
\u00a0\u00a0 int main()
\u00a0\u00a0 {
\u00a0\u00a0 int x,y=10,z=10;
\u00a0\u00a0\u00a0 x = (y = =z);
\u00a0\u00a0 cout<<x;
\u00a0\u00a0 return 0;
\u00a0\u00a0 }<\/strong>
(A) 1\u00a0 (B)\u00a0 0
(C) 10\u00a0 (D) Error
\u00a0<\/p>\n

Ans:A
\u00a0
Q.81\u00a0 What is the error in the following code?
\u00a0\u00a0 class t
\u00a0\u00a0 {
\u00a0\u00a0 virtual void print();
\u00a0\u00a0 }<\/strong>
(A)\u00a0 No error. \u00a0
(B)\u00a0 Function print() should be declared as static.
(C)\u00a0 Function print() should be defined. \u00a0
(D)\u00a0 Class t should contain data members.
\u00a0
\u00a0 Ans:A
\u00a0
Q.82\u00a0\u00a0 What will be the output of following program? \u00a0<\/strong>
#include<iostream.h>
void main()
{
float x;
x=(float)9\/2;
cout<<x;
} \u00a0<\/strong>
\u00a0
(A)\u00a0\u00a0 4.5\u00a0 (B)\u00a0 4.0
(C)\u00a0\u00a0 4\u00a0\u00a0\u00a0 (D)\u00a0 5\u00a0 \u00a0
\u00a0
\u00a0 Ans:A
\u00a0
Q.83\u00a0\u00a0 A white space is <\/strong>:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0
\u00a0\u00a0 (A)\u00a0 blank space\u00a0 (B)\u00a0 new line
\u00a0\u00a0 (C)\u00a0 tab\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (D)\u00a0 all of the above \u00a0
\u00a0
\u00a0 Ans:D
\u00a0
Q.84\u00a0 The following can be declared as friend in a class\u00a0\u00a0\u00a0<\/strong> \u00a0
(A)\u00a0 an object\u00a0 (B)\u00a0 a class
(C)\u00a0 a public data member\u00a0 (D) a private data member
\u00a0
\u00a0 Ans:B
\u00a0
Q.85\u00a0 What would be the output of the following?
\u00a0\u00a0 #include<iostream.h>
\u00a0\u00a0 void main()
\u00a0\u00a0 {
\u00a0\u00a0 char *ptr=\u0393\u00c7\u00a3abcd\u0393\u00c7\u00a5
\u00a0\u00a0 char ch;
\u00a0\u00a0 ch = ++*ptr++;
\u00a0\u00a0 ut<<ch;
\u00a0\u00a0 }<\/strong>
\u00a0
(A)\u00a0 a\u00a0 (B)\u00a0 b
(C)\u00a0 c\u00a0 (D)\u00a0 d
\u00a0
\u00a0 Ans:B
\u00a0
Q.86\u00a0\u00a0 A copy constructor takes<\/strong>
(A)\u00a0 no argument\u00a0\u00a0\u00a0 (B)\u00a0 one argument
(C)\u00a0 two arguments\u00a0 (D)\u00a0 arbitrary no. of arguments
\u00a0 \u00a0
\u00a0\u00a0 Ans:B
\u00a0
Q87\u00a0 Overloading a postfix increment operator by means of a member function takes\u00a0 <\/strong>\u00a0
(A)\u00a0 no argument\u00a0\u00a0\u00a0 (B)\u00a0 one argument
(C)\u00a0 two arguments\u00a0 (D)\u00a0 three arguments
\u00a0
\u00a0 Ans:A
\u00a0
Q88\u00a0 Which of the following ways are legal to access a class data member using this pointer?<\/strong>
(A)\u00a0 this.x\u00a0\u00a0\u00a0 (B)\u00a0 *this.x
(C)\u00a0 *(this.x) (D)\u00a0 (*this).x
\u00a0
\u00a0 Ans:D
\u00a0
Q.89\u00a0 If we store the address of a derived class object into a variable whose type is a pointer to the
base class, then the object, when accessed using this pointer.<\/strong>
(A) continues to act like a derived class object.\u00a0 \u00a0
(B) Continues to act like a derived class object if virtual functions are called.
(C) Acts like a base class object. \u00a0
(D) Acts like a base class, if virtual functions are called.
\u00a0
\u00a0 Ans:B
\u00a0
Q.90\u00a0 Which of the following declarations are illegal?<\/strong>
(A) void *ptr;\u00a0 (B)\u00a0 char *str = \u0393\u00c7\u00a3hello\u0393\u00c7\u00a5;
(C) char str = \u0393\u00c7\u00a3hello\u0393\u00c7\u00a5;\u00a0 (D) const *int p1;
\u00a0
\u00a0 Ans:C <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Q.76\u00a0\u00a0 Which of the following expressions is illegal? (A)\u00a0 ( ) 6 10 .\u00a0 (B)\u00a0 (false && true) (C)\u00a0 bool (x) = (bool)10;\u00a0 (D)\u00a0 float y = 12.67; \u00a0 \u00a0 \u00a0 Ans:C \u00a0 Q.77\u00a0 The actual source code for implementing a template function is created when \u00a0 (A) The declaration of function appears. (B) The…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-172","post","type-post","status-publish","format-standard","hentry","category-c-and-c-programming-language"],"_links":{"self":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/posts\/172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=172"}],"version-history":[{"count":0,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/posts\/172\/revisions"}],"wp:attachment":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}