Dynamics of Machinery (3151911) MCQs

MCQs of Forced damped vibrations

Showing 21 to 30 out of 45 Questions
21.

Vibration measuring instruments are classified on the basis of ____________.

(a)

contact between the vibrating system and measuring instrument

(b)

the requirement of power source

(c)

method of measurements

(d)

all of the mentioned

Answer:

Option (d)

22.

From the following, which one is a type of vibration measuring instrument?

(a)

Mechanical

(b)

Electrical

(c)

Magnetic

(d)

All of the mentioned

Answer:

Option (d)

23.

The vibration in a vehicle is normally expressed in the terms of the ______________.

(a)

displacement

(b)

velocity

(c)

acceleration

(d)

time

Answer:

Option (c)

24.

If the fatigue failure of an element is the primary concern, then vibration should be then expressed in terms of ________.

(a)

induced dynamic stress

(b)

velocity

(c)

displacement

(d)

acceleration

Answer:

Option (a)

25.

From the following, which one is also known as low-frequency Transducer?

(a)

Stroboscope

(b)

Accelerometer

(c)

Vibrometer

(d)

Tachometer

Answer:

Option (c)

26.

Which instrument is used to record building vibrations or vibrations of huge structures like railway bridges?

(a)

Stroboscope

(b)

Accelerometer

(c)

Vibrometer

(d)

Tachometer

Answer:

Option (c)

27.

In vibrometer, the relative motion between the mass and vibrating body is converted into proportional ________.

(a)

current

(b)

voltage

(c)

resistance

(d)

ampere

Answer:

Option (b)

28.

The frequency range of a vibrometer is generally ___________.

(a)

1 Hz to 5 Hz

(b)

10 Hz to 50 Hz

(c)

100 Hz to 500 Hz

(d)

1000 Hz to 5000 Hz

Answer:

Option (a)

29.

Which of the following instruments measure the amplitude of a vibrating body?

(a)

Vibrometers

(b)

Seismometer

(c)

Vibrometers and Seismometer

(d)

Stroboscope

Answer:

Option (c)

30.

An accelerometer is an instrument used to measure the _________ of a vibrating body.

(a)

displacement

(b)

velocity

(c)

acceleration

(d)

time

Answer:

Option (c)

Showing 21 to 30 out of 45 Questions