Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is __________________?

Related Mcqs:

1. Dome temperature of blast furnace stove is most accurately measured by a____________________?

   A. Radiation pyrometer
   B. platinum-platinum/rhodium thermocouple
   C. Iron-constantan thermocouple
   D. Platinum resistance thermometer

2. Mercury manometer (U-tube type) exemplifies a ______________ order system?

   A. Zero
   B. First
   C. Second
   D. Third

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

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

4. Liquid flow rate in an open channel cannot be measured by a/an __________________?

   A. Orifice meter
   B. Cipolletti weir
   C. Rectangular weir
   D. V-notch

5. Specific gravity of a liquid cannot be measured by a/an __________________?

   A. Anemometer
   B. Specific gravity bottle
   C. Pycnometer
   D. Hydrometer

6. Liquid discharge from a tank or reservoir cannot be measured by __________________?

   A. Orificemeter
   B. Weirs
   C. Mouthpieces
   D. Notches

7. 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

8. Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an_______________?

   A. Chromel-alumel thermocouple
   B. Optical pyrometer
   C. Radiation pyrometer
   D. Either B. or C.

9. A manometer measures the _____________ pressure?

   A. Atmospheric
   B. Absolute
   C. Gauge
   D. None of these

10. Liquid levels in autoclaves are measured by ________________?

    A. Simple float
    B. Differential float type manometer
    C. Glass gauge
    D. None of these