| 141. | Also known as ‘Liquid Gold’ |
A. petroleum | |
B. platinum | |
C. aquaregia | |
D. Pyrene |
| 142. | Petro crops are mainly found in – |
A. lipids and proteins | |
B. hydrocarbons and carbohydrates | |
C. Carbohydrates and Proteins | |
D. Hydrocarbons and Lipids |
| 143. | Petroleum products are obtained by hydrocracking of low-burden hydrocarbons present in the latex of some plants, to which origin do such plants belong? |
A. leguminous | |
B. liliaceae | |
C. Euphorbiaceae | |
D. solanaceae |
| 144. | The composition of kerosene oil is – |
A. C₁-C₅ | |
B. C₅-C₁₁ | |
C. C₁₁-C₁₆ | |
D. C₁₆-C₁₈ |
| 145. | Gasohol, which is used as a fuel in motor vehicles, is a mixture of – |
A. of methane and alcohol | |
B. petrol and alcohol | |
C. of hydrogen and alcohol | |
D. natural gas and alcohol |
| 146. | Diesel is used in heavy vehicles because – |
A. More mileage and engine protection | |
B. Low cost and fuel savings | |
C. High Efficiency and Economic Saving | |
D. being cheaper than petrol |
| 147. | How is the quality of petrol expressed? |
A. cetane number | |
B. Swarnaak | |
C. octane | |
D. added unleaded compound |
| 148. | The value of octane number of a good anti-knock compound is |
A. High | |
B. Lower | |
C. Zero | |
D. infinity |
| 149. | Which of the following is used to increase the anti-knock quality of petrol? |
A. tetramethyl lead | |
B. tetraethyl lead | |
C. trimethyl lead | |
D. triethyl lead |
| 150. | The best anti-knock compound used in petrol is |
A. sodium ethoxide | |
B. zinc ethyl | |
C. ethyl magnesium bromide | |
D. lead tetraethyl |