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Engineering :: Mechanical Measurements

91.  Ionisation gauge is used to measure pressures
A. Below 3 microns B. Above 3 microns
C. Above 100 microns D. Between 100 and 200 microns
E. Above 200 microns    
92.  The specific conductance of good quality raw water is
A. 0.1 micro mho/cm B. 1 micro mho/cm
C. 10 micro mho/cm D. 100 micro mho/cm
E. 1000 micro mho/cm    
93.  The amount of moisture in air is measured by
A. Single psychrometer B. Orsat apparatus
C. Mass spectrometer D. Photo conductive cell
E. Thermistor    
94.  A polarograph is used for the analysis of
A. Solids B. Liquids
C. Gases D. All of the above
E. None of the above    
95.  Which of the following can be used as sensing element for an instrument?
A. Spring B. Proving ring
C. Bourdon tube D. Diaphragm
E. Any of the above    
96.  Which of the following can be used as thermal detector?
A. Thermistor B. Pyrometer
C. Thermocouple D. Resistance thermometer
E. Any of the above    
97.  Which of the following device is primarily used to measure pressure?
A. Bourdon tube B. Kundts tube
C. Hygrometer D. Rotameter
E. All of the above    
98.  A pirani gauge works on the principle of change of
A. Thermal conductivity of medium B. Electrical resistivity
C. Conductance D. Capacitance
E. Relative humidity    
99.  Which of the following meter is preferred for the measurement of pressure in a steam condenser?
A. Manometer B. Kentometer
C. Pitot tube D. Mcleod gauge
E. None of the above    
100.  The joints of a phosphor-bronze Bourdon tubes are
A. Soldered B. Brazed
C. Screwed D. Welded
E. Jointed by adhesives    

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