General instrumentation

General instrumentation

University

12 Qs

quiz-placeholder

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General instrumentation

General instrumentation

Assessment

Quiz

Other

University

Hard

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is the fundamental operation in the discrete Fourier transform?

Convolution

Differentiation

Integration

Modulation

2.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Which type of signal is represented by discrete values?

Nois signal

Non linear

Analog

Digital

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In direct computations of DFT the total number of complex additions are given by

N2-N

N-1 

N+1 

2N

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The rotor slots are slightly skewed in squirrel cage induction motor to

provide ease of fabrication.

reduce the magnetic hum and locking tendency of rotor.

increase the strength of rotor bars.

decrease the amount of copper to be used.

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip?

50Hz

2.5Hz

1 Hz

2HZ

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The rotor of an induction motor rotates in the direction of the rotation of stator field in order to

Reduce the relative speed between the rotating stator field and the stationary rotor conductors

Oppose the rotor current

Increase the relative speed between the rotating stator field and stationary rotor conductors

None of the above

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image
What two forces are required for generators and electric motors to work? 
magnetism and thermal 
electricity and thermal 
electricity and magnetism 
magnetism and radiant 

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