Calorific value of ____________________ are almost same?

Related Mcqs:

1. For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg) ?

   A. Propane and acetylene
   B. Propane and LPG
   C. Sewage gas and gobar gas
   D. B.F gas and coke oven gas

2. The difference between gross & net calorific values of fuel is due to the___________________?

   A. Sensible heat carried away by the flue gases
   B. Heat carried away by the steam from the moisture content of the fuel
   C. Heat lost by radiation
   D. Heat carried away by steam from the combustion of hydrogen in the fuel

3. Powder metallurgy technique is used in the production of ____________________ tools ?

   A. Tungsten carbide
   B. High carbon steel
   C. High speed steel
   D. Drilling

4. Pressure required to increase the density of water by about 1% is ____________________ atmosphere?

   A. 10
   B. 50
   C. 200
   D. 1000

5. ____________________ are normally subjected to sub-zero treatment?

   A. Highly stressed parts
   B. Gauges or precision parts
   C. Cold rolled sheets
   D. Non machinable materials

6. ____________________ of hard alloy and tool steel is done to make it easily machinable ?

   A. Case carburising
   B. Tempering
   C. Normalising
   D. Annealing

7. One ton of refrigeration is not equivalent to the heat removal rate of ____________________?

   A. 200 BTU/minute
   B. 50 kcal/minute
   C. 50 kJ/sec
   D. 3.5 KW

8. Addition of ____________________ to steel does not help in improving its machinability?

   A. Sulphur
   B. Silicon
   C. Lead
   D. Phosphorous

9. “Encyclopaedia of Chemical Technology” has been ____________________?

   A. Authored by Kirk Othmer
   B. Edited by Perry and Chilton
   C. Edited by Kirk Othmer
   D. Authored by Perry and Chilton

10. Blow off cock is provided in steam boiler to ____________________?

    A. Guard the boiler in case of abnormal rise in steam pressure
    B. Drain out water and sludge during its repair
    C. Regulate the supply of water in boiler
    D. Put out the fire in the furnace when the water level in the boiler falls to unsafe limit