Liquid column manometers are used for measuring the pressure ______________ kgf/cm2?

Related Mcqs:

1. Bourdon gauges are used for measuring pressure (kg/cm2) ?

   A. < atmospheric
   B. > 2 (gauge)
   C. 10 (absolute)

2. Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury?

   A. 250
   B. 350
   C. 550
   D. 700

3. Liquid argon level in a pressurised storage tank (at 3 kg/cm2) is measured by a/an ____________________?

   A. Gage glass
   B. External float gage
   C. Differential pressure gage
   D. None of these

4. Vapour actuated pressure spring thermometer does not require ambient temperature compensation. Ambient temperature compensation is provided in gas or liquid expansion pressure spring thermometer by__________________?

   A. Making the volume of thermometer bulb as large as conveniently possible
   B. Reducing the volume of the capillary to a minimum
   C. Reducing the volume of the receiving element to a minimum
   D. All A , B & C.

5. Maximum differential pressure in liquid manometer is ______________ psi?

   A. 20
   B. 30
   C. 40
   D. 50

6. Which is the most suitable instrument for measuring pressure below 3 microns ?

   A. Mcleod gauge
   B. Alphatron
   C. Ionisation gauge
   D. Bourdon gauge

7. Very low pressure is expressed in microns (μ), which is equal to ____________ mm of Hg column (absolute) at 0°C?

   A. 0.0001
   B. 0.001
   C. 0.01
   D. 0.1

8. Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a __________________?

   A. Thermocouple
   B. Resistance thermometer
   C. Mercury in glass thermometer
   D. Vapor pressure thermometer

9. Platinum resistance thermometer can be used upto antimony point which is ____________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure?

   A. 961.93
   B. 630.74
   C. 1064.43
   D. 1261.93

10. To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with ________________?

    A. Air
    B. A metal powder or graphite
    C. Oil
    D. Mercury