Related Questions

Piezoelectric quartz crystal resonators find application where
A Signal amplification is required
B Rectification of the signal is required
C Signal frequency control is required
D Modulation of signal is required
Klystron oscillators are most often used in the frequency range of
A 300 to 3000 MHz
B 3000 to 30000 MHz
C 30 to 30000 MHz
D 10 to 10000 MHz
Oscillators of a klystron tube are maintained
A By bunches of electrons passing the cavity grids
B By plate-to-cathode feedback
C By feedback between the accelerating grid and the repeller
D By circulating bunches of electrons within the cavities.
Quartz and Rochelle salt belongs to ___________ of piezo-electric materials
A Natural group
B Synthetic group
C Natural or Synthetic group
D Fiber group
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
Collections of opals and quartz are featured at the City Museum's annual exhibition of precious stones.
A coins
B loot
C ornaments
D shells
Complete the analogous pair: QUARTZ: RADIO :: GYPSUM:?
A GLASS
B PORCELAIN
C CEMENT
D POWDER
In certain types of quartz, bands of colour form an irregular pattern.
A shades
B grains
C drops
D stripes
Quartz is a crystalline form of
A Alumina
B Glass
C Silica
D Limestone

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