Physics Group - I (3110011) MCQs

MCQs of Ultrasonic and Non distractive testing (NDT)

Showing 21 to 30 out of 38 Questions
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21.
Kundt's tube is used for
(a) generating ultrasonic waves
(b) detecting ultrasonic waves
(c) passing ultrasonic waves
(d) amplifying ultrasonic waves
Answer:

Option (b)

22.
The Kundt's tube uses lycopodium powder filled inside the tube. For detection of ultrasonic waves, the powder must be set in __________ vibrations.
(a) progressive
(b) stationary
(c) thermal
(d) all of these
Answer:

Option (b)

23.
In Kundt's tube apparatus, the lycopodium powder is
(a) form heap at nodes
(b) blown off at nodes
(c) no change in powder
(d) form heap at antinodes
Answer:

Option (a)

24.
The average distance between two adjacent heaps gives __________ of ultrasonic waves.
(a) wavelength
(b) 1/4 of wavelength
(c) twice of wavelength
(d) 1/2 of wavelength
Answer:

Option (d)

25.
Kundt's tube is used to detect ultrasonic waves if the __________ of ultrasonic waves is very small.
(a) wavelength
(b) amplitude
(c) frequency
(d) energy
Answer:

Option (a)

26.
Which of the following technique can be used to detect ultrasonic waves?
(a) Kundt's tube method
(b) Thermal detection method
(c) Acoustic grating method
(d) all of these
Answer:

Option (d)

27.
Full form of SONAR is
(a) Sound Normal at Area
(b) Systematic Observation for Navigation of River
(c) Sonic Arrangement at Riverbed
(d) Sound Navigation and Ranging
Answer:

Option (d)

28.
SONAR is used for
(a) detecting distance and direction of submarine
(b) detecting depth of sea
(c) detect depth of rocks
(d) all of these
Answer:

Option (d)

29.
The total distance travelled by sound wave produced and received by SONAR would be
(a) d
(b) 2d
(c) 2d/3
(d) 3d/2
Answer:

Option (b)

30.
Full form of NDT is
(a) Non-discriptive testing
(b) Normal Defect Technique
(c) Nil Descriptive Tecnology
(d) Non Destructive Testing
Answer:

Option (d)

Showing 21 to 30 out of 38 Questions
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