Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is__________________?

Related Mcqs:

1. Water hammer is caused in steam carrying pipelines, because of ______________________?

   A. Partial condensation of steam
   B. Vibration of the pipeline
   C. High degree of superheat of steam
   D. Its exposure to torrential rain

2. ______________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently ?

   A. Collar
   B. Flanged
   C. Bell and Spigot
   D. Expansion

3. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans ?

   A. Emissivity of pipe surface
   B. Diameter & length of the pipe
   C. Temperature of hot pipe surface & that of air in the room
   D. None of these

4. Dry saturated steam can be converted into super heated steam by____________________?

   A. Increasing its cross-sectional area of flow
   B. Passing it through a pressure reducing valve
   C. Forcing it downwards through a vertical tube
   D. None of these

5. Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be_________________?

   A. Wet
   B. Saturated
   C. Superheated
   D. None of these

6. Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?

   A. Decreases
   B. Increases
   C. Remain same
   D. May increase or decrease

7. . The effect of friction on the flow of steam through a nozzle is to decrease the _______________ of steam?

   A. Wetness
   B. Mass flow rate
   C. Both A & B
   D. Neither A nor B

8. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point is__________________?

   A. 180°
   B. 212°
   C. 32°
   D. 273°

9. Maximum permissible air velocity in pipelines is about ______________ metre/second ?

   A. 5
   B. 10
   C. 20
   D. 40

10. Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode________________?

    A. Occurs higher in the electro-chemical series of metals
    B. Is exemplified by magnesium plate
    C. Is much cheaper than the cathodic base material to be guarded against corrosion
    D. All A, B. & C.