Related Questions

In most of the vacuum crystalliser, vacuum is generally produced by means of a
A Suction pump
B Compressed air jet
C Steam jet ejector with a barometric condenser
D None of these
Agitator is provided in a crystalliser for
A Avoiding deposition on cooler surfaces
B Formation of nuclei
C Crystal growth
D All of the above
Swenson-Walker crystalliser is a __________ unit
A Continuous
B Batch
C Semi-batch
D Cooling (adiabatic)-cum-evaporation
The heating capacity of continuous reheating furnace depends upon the
A Hearth area and furnace temperature
B Emissivity of the stock
C Ratio of wall surface to stock surface
D All of the above
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
The size of a cam depends upon
A base circle
B pitch circle
C prime circle
D pitch curve
Cam size depends upon
A base circle
B pitch circle
C prime circle
D outer circle
The size of cam depends upon
A Base circle
B Pitch circle
C Prime circle
D Pitch curve

Next steps