Related Questions

Piezo – electric transducers work when we apply _____________ to it.
A Mechanical force
B Vibrations
C Illuminations
D Heat
Quartz and Rochelle salt belongs to ___________ of piezo-electric materials
A Natural group
B Synthetic group
C Natural or Synthetic group
D Fiber group
Piezo-electric transducers are
A Passive transducers
B Inverse transducers
C Digital transducers
D Pulse transducers
A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together, how many units can they produce in 30 hours?
A 50 units
B 60 units
C 70 units
D 80 units
Quartz crystal is most commonly used in crystal oscillators because ___________
A It has superior electrical properties
B It is easily available
C It is quite inexpensive
D None of the above
The crystal oscillator frequency is very stable due to ___________ of the crystal
A Rigidity
B Vibrations
C Low Q
D High Q
If the crystal frequency changes with temperature, we say that crystal has ___________ temperature coefficient
A Positive
B Zero
C Negative
D None of the above
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
A 648
B 1800
C 2700
D None of these
Running at the same constant rate 6 identical machines can produce a total of 270 bottles per minute . At this rate, how many bottles could 10 such machines produce in 4 minutes?
A 1800
B 648
C 2700
D 10800
Running at the same constant rate, 6 identical machines can produce a totoal of 270 bottles per minute. At this rat, how many bottles could 10 such machines produce in 4 minutes?
A 648
B 10800
C 2700
D 1800

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