Block Diagram Representation - Mechanical Engineering (MCQ) questions and answers

1)   What is the transfer function of an electrical system given below?

Where,
I: Current
V: Voltage
R: Resistance


a. V
b. 1/V
c. I
d. 1/R
Answer  Explanation 

ANSWER: 1/R

Explanation:
No explanation is available for this question!


2)   Which of the following functions can a control system carry out?

a. The system output can be controlled to some desired particular value for particular input
b. If certain conditions are satisfied, it can give a particular sequence of output, corresponding to given input
c. Either a. or b.
d. None of the above
Answer  Explanation 

ANSWER: Either a. or b.

Explanation:
No explanation is available for this question!


3)   A group of components which can complete certain tasks or achieve certain desired results in a desired manner while working together is called as_____

a. output system
b. sequence system
c. control system
d. all of the above
Answer  Explanation 

ANSWER: control system

Explanation:
No explanation is available for this question!


4)   In which system does the output not affect the process in any way?

a. Open loop system
b. Closed loop system
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Open loop system

Explanation:
No explanation is available for this question!


5)   The temperature control system which maintains the temperature of a room at 30 oC when it is set is an example of_____

a. Open loop system
b. Closed loop system
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Closed loop system

Explanation:
No explanation is available for this question!


6)   Which control system does not have a stability problem?

a. Open loop system
b. Closed loop system
c. Both a. and b.
d. None of the above
Answer  Explanation 

ANSWER: Open loop system

Explanation:
No explanation is available for this question!


7)   The displacement of a mass attached to a spring in mechanical system is corresponding to _______ in the electrical system

a. inductance
b. resistance
c. capacitance
d. current
Answer  Explanation 

ANSWER: current

Explanation:
No explanation is available for this question!


8)   Which of the following statements are true for block diagrams?

1. Block diagrams are the pictorial representation of the system
2. The complicated systems can be easily represented by connecting different blocks
3. Block diagram represents the relationship between input and output of the system


a. Statements (1) and (2)
b. Statements (2) and (3)
c. Statements (1) and (3)
d. Statements (1), (2) and (3)
Answer  Explanation 

ANSWER: Statements (1), (2) and (3)

Explanation:
No explanation is available for this question!


9)   A corresponding block of an element is drawn by inserting ________ of that element inside the block.

a. the value of corresponding input
b. a transfer function
c. the value of corresponding output
d. the name
Answer  Explanation 

ANSWER: a transfer function

Explanation:
No explanation is available for this question!


10)   What is/are the maximum number of arrow/s (Input/s) allowed to go inside the block?

a. One
b. Two
c. Three
d. Four
Answer  Explanation 

ANSWER: One

Explanation:
No explanation is available for this question!