Explore topic-wise MCQs in Mechanical Engineering.

This section includes 199 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.

151.

When the type conversion is required?

A. the value to be stored is in the form not supported by data type
B. the value supported is beyond the max limit
C. to reduce the memory in use associated with that value
D. all of these
Answer» E.
Discussion
152.

Identify the built-in data type__________________.

A. struct
B. class
C. int
D. enum
Answer» D. enum
Discussion
153.

What will happen if null pointer is converted to boolean___________.

A. the boolean value is evaluated to true
B. the boolean value is evaluated to false
C. errror is raised
D. none of these
Answer» C. errror is raised
Discussion
154.

What is strong type system?

A. the type system in which only built-in data types are allowed.
B. the type system in which only user defined data types are allowed.
C. a type system that guarantees not to generate type errors.
D. none of these
Answer» D. none of these
Discussion
155.

A mathematical model with a collection of operations defined on that model is called__________.

A. data structure
B. abstract data type
C. built in data type
D. none of these
Answer» C. built in data type
Discussion
156.

What is the role of compiler by templates?

A. probability
B. type-safe
C. code elimination
D. allof these
Answer» C. code elimination
Discussion
157.

Explicit type conversion is known as_____.

A. conversion
B. casting
C. separation
D. none of these
Answer» C. separation
Discussion
158.

Which size should be used when double precision is required?

A. float
B. double
C. long double
D. none of these
Answer» C. long double
Discussion
159.

What will be the output of the follwing code? #include using namespace std; int main() { float a=22.22; double b= 22.22; if(a==b) cout<<"Matching"; else cout<<"Not Matching"; return 0; }

A. matching
B. non matching
C. syntax error
D. none of these
Answer» C. syntax error
Discussion
160.

What is the output of following code? #include using namespace std; int main() { int I; enum test{a=1,b,c,d,e,f,g,h}; for(i=c;i<=g;i++) cout<<" "<

A. syntax error
B. 3 4 5 6 7
C. 1 2 3 4 5
D. none of these
Answer» C. 1 2 3 4 5
Discussion
161.

Class is _______.

A. template which associates code and data
B. data abstraction
C. implementation of abstract data type
D. object oriented
Answer» E.
Discussion
162.

When variable used in the program is a whole number,then variable is stored as ___________.

A. string data type
B. integer data type
C. negative whole number
D. positive whole number
Answer» C. negative whole number
Discussion
163.

What will be the output of following code? #include using namespace std; int main() { enum color{blue,orange,green}; enum fruit{apple,guava,orange}; int i=0; for(i=blue;i<=green;i++) printf("%d",i); return 0; }

A. 0 1 2
B. 1 2 3
C. syntax error
D. none of these
Answer» D. none of these
Discussion
164.

During execution of a program the compiler demands for block of memory to operating system.This block is called as _____________.

A. code memory
B. data memory
C. runtime storage
D. none of these
Answer» D. none of these
Discussion
165.

Which of the following represents correct syntax for function declaration?

A. int sum(int,int);
B. int sum(int,int){}
C. int sum;
D. both a and c
Answer» B. int sum(int,int){}
Discussion
166.

What is the output of the following code? Int main(void) { char name='P'; 'P'=10;return 0; }

A. name will contain value 10
B. p will contain 10
C. syntax error
D. none of these
Answer» D. none of these
Discussion
167.

The full form of BNF is_____________.

A. beginning normal form
B. backus naur form
C. best normal form
D. none of these
Answer» C. best normal form
Discussion
168.

Programming language FOTRAN stands for:

A. free translator
B. formula translator
C. formula translation
D. free translation
Answer» C. formula translation
Discussion
169.

Language efficiency can be achieved by ___________.

A. maximum speed
B. less memory consumption
C. reusability
D. all of these
Answer» E.
Discussion
170.

Semantic of a program means-

A. format of a program
B. meaning of a program
C. simply content of a program
D. none of these
Answer» C. simply content of a program
Discussion
171.

What is relationship between reliability and failure?

A. direct relation
B. inverse relation
C. no relation
D. varying relationdepending upon the situation
Answer» C. no relation
Discussion
172.

The difference between memory and storage is that memory is __________________ and storage is __________.

A. temporary, permanent
B. permanent,temporary
C. slow,fast
D. all of above
Answer» B. permanent,temporary
Discussion
173.

Which is the longest scope in the following code? #include int x; int main() { int y; fun(); return 0; } void fun(){ int z; }

A. x
B. y
C. z
D. both a and b
Answer» B. y
Discussion
174.

The default parameter passing method used in C++ is ____________.

A. call by reference
B. call by value
C. call by name
D. none of these
Answer» C. call by name
Discussion
175.

The value of an automatic variable that is declared but not initialized will be

A. 0
B. -1
C. unpredictable
D. none of these
Answer» D. none of these
Discussion
176.

Progarmming Language FORTRAN stands for:

A. free translator
B. formula translator
C. formula translation
D. free translation
Answer» C. formula translation
Discussion
177.

#include #define count 10; void main() { printf("%d",count); }

A. 10
B. syntax error
C. none of these
Answer» C. none of these
Discussion
178.

In C, reference is declared using the symbol

A. *
B. &
C. &&
D. !
Answer» C. &&
Discussion
179.

Which one of the following is not the stage of software development?

A. requirement analysis and gathering
B. problem identification
C. software design
D. maintenance
Answer» C. software design
Discussion
180.

The Linker __________________.

A. is similar to interpreter
B. uses source code as its input
C. it is required to create a load module
D. none of these
Answer» D. none of these
Discussion
181.

The graphical representation of syntax is represented by ___________.

A. finite diagram
B. er diagram
C. syntax diagram
D. none of these
Answer» D. none of these
Discussion
182.

Semantic of aprogram means

A. format of a program
B. meaning of a program
C. simply content of a program
D. none of these
Answer» B. meaning of a program
Discussion
183.

Which of the following is machine independence program?

A. high level language
B. low level language
C. assembly language
D. machine language
Answer» B. low level language
Discussion
184.

For specifying the syntax of a language _____________ is used.

A. context free language
B. regular expression
C. finite automata
D. none of these
Answer» B. regular expression
Discussion
185.

Which programming languages are classified as low level languages?

A. cobol,fortran,pascal
B. prolog 2,expert systems
C. assembly languages
D. knowledge based systems
Answer» D. knowledge based systems
Discussion
186.

The difference between memory and storage is that memory is _________ and storage is _________.

A. temporary,permanent
B. permanent,temporary
C. slow,fast
D. all of above
Answer» B. permanent,temporary
Discussion
187.

ALU stands for:

A. array logic unit
B. application logic unit
C. arithmetic logic unit
D. none of these
Answer» D. none of these
Discussion
188.

The Logic programming technique is implemented in :

A. declarative programming
B. object oriented programming
C. functional programming
D. generic programming
Answer» B. object oriented programming
Discussion
189.

What is a prototype

A. mini-model of existing system
B. mini-model of proposed system
C. working model of existing system
D. none of these
Answer» B. mini-model of proposed system
Discussion
190.

Prototyping aims at

A. end user understanding and approval
B. program logic
C. planning of dataflow organization
D. none of these
Answer» B. program logic
Discussion
191.

The detailed study of existing system is referred to as

A. system planning
B. system analysis
C. feasibility study
D. design dfd
Answer» C. feasibility study
Discussion
192.

Which step of SDLC performs cost/benefit analysis?

A. feasibility study
B. analysis
C. design
D. none of these
Answer» C. design
Discussion
193.

Which of the following is secondary memory device?

A. keyboard
B. disk
C. alu
D. all of the above
Answer» C. alu
Discussion
194.

Which of the following is a true statement regarding the SDLC phases.

A. the sdlc is not iterative.
B. the life cycle is always a sequentially ordered sets of phases.
C. it is not possible to completed some activities in one phase in parallel with those of another phase.
D. the life cycle may be thought of as a circular process.
Answer» B. the life cycle is always a sequentially ordered sets of phases.
Discussion
195.

Which of the following is an object oriented programming language?

A. c
B. c++
C. ml
D. ada
Answer» C. ml
Discussion
196.

_________ is a module based programming language

A. c
B. c++
C. ml
D. ada
Answer» E.
Discussion
197.

Which of the following phase of software development is associated with creation of test data ?

A. system analysis
B. design
C. coding
D. system acceptance
Answer» E.
Discussion
198.

Which of the following is a functional programming language?

A. c
B. c++
C. ml
D. ada
Answer» D. ada
Discussion
199.

Which of the following is not the part of software development phases?

A. software designing
B. software validation
C. software dependent
D. software implementation
Answer» D. software implementation
Discussion