A hot wire anemometer is used to measure
A.Pressure of gases
B.Liquid discharges
C.Very low pressures
D.Gas velocities
E.Diameter of fine particles
Category: Mechanical Measurements Mcqs
A degital thermometer has 3
A.1.000?C
B.1.001?C
C.1.999?C
D.0.999?C
E.None of the above
Which of the following material is used for photoconductive cells
A.Selenium
B.Mica
C.Thorium
D.Tungsten
E.Barium sulphate
Ceremets are
A.Resistance elements
B.Variable capacitors
C.Ganged condensers
D.Defects in transducers
E.Multi-turn potentiometers
The sensitivity accuracy of an instrument depends on
A.Frequency response
B.Amplitude distortion
C.Tempearature variations
D.Hysteresis
E.None of the above
For measuring the temperature of a boiler furnace which one of the following is the appropriate thermometer?
A.Optical pyrometer
B.Bimetallic thermometer
C.Thermocouple
D.Resistance thermometer
E.Any of the above
Under force-voltage analogy, spring constant is considered analogous to
A.Reciprocal of resistance
B.Reciprocal of inductance
C.Reciprocal of capacitance
D.Reciprocal of impedance
E.None of the above
In the above case the natural frequency be will
A.13 Hz
B.26 Hz
C.39 Hz
D.68 Hz
E.91 Hz
The lead zone is a certain pyrometer is 0.125 percent of span. The calibration is 400?C to 1000?C. What temperature change might occur before it is detected?
A.0.075?C
B.0.75?C
C.1.5?C
D.3?C
E.7.5?C
A polarograph is used for the analysis of
A.Solids
B.Liquids
C.Gases
D.All of the above
E.None of the above
