Oscilloscopes MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Oscilloscopes, a fundamental topic in the field of Electrical Measurement and Instrumentation. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Oscilloscopes MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Oscilloscopes mcq questions that explore various aspects of Oscilloscopes problems. Each MCQ is crafted to challenge your understanding of Oscilloscopes principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electrical Measurement and Instrumentation tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Oscilloscopes MCQs are your pathway to success in mastering this essential Electrical Measurement and Instrumentation topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Oscilloscopes. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Oscilloscopes knowledge to the test? Let's get started with our carefully curated MCQs!

Oscilloscopes MCQs | Page 15 of 15

Discover more Topics under Electrical Measurement and Instrumentation

Q141.
X and Y plates of a CRO are connected to unequal voltages of equal frequency with phase shift of 90°. The Lissajous figure on the screen will be?

a.

Circle

b.

Straight line

c.

Ellipse

d.

Figure of eight

Discuss
Answer: (c).Ellipse
Q142.
To the Y input of a CRO, we feed a signal defined by 10sin100t, to the X-input, we feed signal 10cos100t. The gain for both X channel and Y channel is the same, the screen will show?

a.

Sinusoidal signal

b.

A straight line

c.

An ellipse

d.

A circle

Discuss
Answer: (d).A circle
Q143.
A CRO uses _________

a.

Electromagnetic focusing

b.

Electrostatic focusing

c.

Both Electrostatic and Electromagnetic focusing

d.

No focusing technique

Discuss
Answer: (b).Electrostatic focusing
Q144.
The two inputs of a CRO are fed with two stationary periodic signals. The figure changes from ellipse to circle and back to ellipse with its major axis changing orientation slowly and repeatedly. The following inference can be made from this.

a.

The signals are not sinusoidal in nature

b.

The amplitudes of the signals are very close but not equal

c.

The signals are sinusoidal with their frequencies very close but not equal

d.

There is a constant but small phase difference between the signals

Discuss
Answer: (d).There is a constant but small phase difference between the signals
Q145.
An oscilloscope indicates ___________

a.

The peak to peak value of the voltage

b.

DC value of the voltage

c.

Rms value

d.

Average value

Discuss
Answer: (a).The peak to peak value of the voltage
Q146.
A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in the figure. The measured voltage will be?

a.

3.53 V

b.

3.47 V

c.

5.54 V

d.

7.00 V

Discuss
Answer: (b).3.47 V
Page 15 of 15