A. PCM
B. Tar
C. Light diesel oil
D. Low viscosity furnace oil
Related Mcqs:
- Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about _______________ °C ?
A. 50
B. 70
C. 90
D. 140 - Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is _______________ centistokes (or 100 Redwood I seconds) ?
A. 5
B. 25
C. 50
D. 100 - Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?
A. Naphtha
B. Petrol
C. Kerosene
D. Heavy fuel oil - Tanks used for the storage of petroleum products (which are inflammable) should be painted with a ______________ paint?
A. Black
B. White
C. Red
D. Yellow - “Breathing loss” on storage of gasoline occurs due to the _____________________?
A. Presence of unsaturated air
B. Fluctuation of ambient temperature during day and night
C. Both A. and B.
D. Neither A. nor B. - Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil ?
A. Modern theory
B. Carbide theory
C. Engler theory
D. All A., B. and C. - Which of the following factors does not govern the mechanism of petroleum formation from organic sources ?
A. pH of the soil
B. Bacterial action
C. Heat
D. Pressure - Which of the following processes in oil refinery does not employ „cracking‟?
A. Coking
B. Visbreaking
C. Pyrolysis
D. None of these - _____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium - During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________________ with increase in the amount of water?
A. Decreases
B. Increases
C. Remains unchanged
D. Decreases linearly
