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This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
A cinema theatre has a volume of 750m2. What should be the total absorption in the theatre if the reverberation time of 1.5seconds is to be maintained? |
A. | 835 open window units |
B. | 1125 open window units |
C. | 500 open window units |
D. | 750 open window units |
Answer» B. 1125 open window units | |
2. |
What happens when window panel sections of the wooden portions are thrown into vibrations to produce new sounds? |
A. | Vibrations are produced |
B. | Resonance occurs |
C. | Echoes are produced |
D. | Absorption occurs |
Answer» C. Echoes are produced | |
3. |
Sound produced from equally spaced steps in a stair case at regular intervals is due to which effect? |
A. | Reverberation effect |
B. | Noise effect |
C. | Absorption effect |
D. | Echelon effect |
Answer» E. | |
4. |
A_CINEMA_THEATRE_HAS_A_VOLUME_OF_750M2._WHAT_SHOULD_BE_THE_TOTAL_ABSORPTION_IN_THE_THEATRE_IF_THE_REVERBERATION_TIME_OF_1.5SECONDS_IS_TO_BE_MAINTAINED??$ |
A. | 835 open window units |
B. | 1125 open window units |
C. | 500 open window units |
D. | 750 open window units |
Answer» B. 1125 open window units | |
5. |
What happens when window panel sections of the wooden portions are thrown into vibrations to produce new sounds? |
A. | Vibrations are produced |
B. | Resonance occurs |
C. | Echoes are produced |
D. | Absorption occurs |
Answer» C. Echoes are produced | |
6. |
Sound produced from equally spaced steps in a stair case at regular intervals is due to which effect? |
A. | Reverberation effect |
B. | Noise effect |
C. | Absorption effect |
D. | Echelon effect |
Answer» E. | |
7. |
What will happen when sound is focussed to a particular area? |
A. | Echoes are produced |
B. | Sound becomes inaudible |
C. | Interference occurs |
D. | Frequency of sound becomes high |
Answer» D. Frequency of sound becomes high | |
8. |
What happens if the reverberation time is too large? |
A. | The sound becomes inaudible |
B. | Echoes are produced |
C. | Frequency becomes high |
D. | The sound becomes infrasonic |
Answer» C. Frequency becomes high | |
9. |
Sensitivity increases with a decrease in intensity. |
A. | True |
B. | False |
Answer» C. | |
10. |
What is the quantity that helps us distinguish a particular voice of a singer from the voice of many singers? |
A. | Timbre |
B. | Pitch |
C. | Intensity |
D. | Music |
Answer» B. Pitch | |
11. |
Sound of mosquito produces high pitch than the sound of a lion. |
A. | True |
B. | False |
Answer» B. False | |
12. |
How are sound waves with a frequency of 20Hz to 20,000Hz termed? |
A. | Inaudible sounds |
B. | Infrasonics |
C. | Ultrasonics |
D. | Audible sound |
Answer» E. | |