Related Questions

Water separometer index (modified) (WSIM) of a petrofuel is the measure of its
A Emulsification tendency
B Water separation characteristics
C Water content
D Water absorbing capacity from atmosphere
শূন্য মাধ্যমে আলোর বেগ C পানি ও হীরকের প্রতিসরাঙ্ক যথাক্রমে 1.33 ও 2.66 হলে পানিতে আলোর (Velocity of light in free space is c. Refractive indices of water and diamond 1.33 and 2.66 respectively. The velocity of light in water is)
A 1.33 c
B 1.33c/2.66
C c / 1.33
D c/2.66
High aniline point of a petrofuel (say diesel) indicates that
A It is highly aromatic in nature
B It is highly paraffinic in nature
C It has a very low diesel index
D Its ignition quality is very poor
Pour point of a petrofuel is
A Multiple of 3°F
B Multiple of 5°F
C 5°C below the temperature at which oil ceases to flow
D None of these
পানির প্রতিসারঙ্ক ( refractive index) 1.3 হলে পানিতে আলোর বেগ (velocity of light) কত? শুন্যস্থান (vacuum) - এ আলোর বেগ3×108m/s   
A   3.31 ×108 m/s 
B    2.31 ×108 m/s     
C    2 ×108 m/s 
D  4.31 ×108 m/s 
Dew point temperature always gives an indication of the __________ of the moist air.
A Dryness
B Moisture content
C Coolness
D Latent heat
Specific gravity of a petroleum product gives an indication of its
A Degree of refinement
B Hydrocarbon content type (aromatic or paraffinic)
C Ease of atomisation
D Sulphur content
Which of the following medium has the lowest refractive index?
A Petrol
B Oil
C Air
D Diamond
Which of the following has the highest value of refractive index?
A Brine (sea water)
B Diamond
C Distilled water
D Glass
একটি জলাশয় (pond) এর প্রকৃত গভীরতা (real depth) 6 m. যদি পানির প্রতিসরাঙ্ক (refractive index) 4/3 হয়, তবে এর আপাত গভীরতা (apparent depth ) কত?
A 4m
B 5m
C 4.5 m
D 5.5 m

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