Instrumentation -systems

Welcome to your Quiz .This quiz is about system .it contains 10 questions

1.

Which of the following is/are the advantages of a closed loop control system?

The closed loop systems are accurate

The closed loop systems are less affected by noise

both 1 and 2

neither 1 nor 2

2.

Force balancing equation of a mass elements is ( where x = displacement)

M d²x/dt²

M dx/dt

M *x

any of the above

3.

Which of the following are the disadvantages of a closed loop control system?

reduces the overall gain

complex and costly

oscillatory response

all of the above

4.

Advantages of open loop system is/are?

simple and economical

accurate

reliable

any of the above

5.

If two blocks having gains A and B respectively are in parallel connection, find the resultant gain using block diagram reduction technique?

A+B

A*B

A/B

2(A+B)

6.

Which system is also known as automatic control system?

open loop control system

closed loop control system

either 1 or 2

nether 1 nor 2

7.

By using which of the following elements, mechanical translational systems are obtained?

mass element

spring element

dash-pot

all of the above

8.

The output of the system has an effect upon the input quantity, then the system is a

open loop control system

closed loop control system

either 1 or 2

none of the above

9.

If two blocks having gains A and B respectively are in series connection, find the resultant gain using block diagram reduction technique?

A+B

A*B

A-B

A/B

10.

If a circuit consisting of two mass elements, two spring elements and four friction elements. Find the order of transfer function?

2

4

6

12

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