PostLab_FuelTesting_2566

Which statement correctly identifies the types of coal?

• 4 types - Peat, Lignite, Bituminous, Anthracite.

• 4 types - Quartz, Lignite, Sub-bituminous, Anthracite.

• 5 types - Peat, Lignite, Bituminous, Sub-bituminous, Anthracite.

In ASTM D1373 for coal moisture analysis, what is the designated temperature for heating the coal to ascertain its moisture content?

• 95 ℃

• 105 ℃

• 950 ℃

Which statement correctly describes the calculation for %Fix carbon?

• %Fix carbon = 100 - (%moisture + %ash + %volatile matter)

• %Fix carbon = 100 + (%moisture + %ash + %volatile matter)

• %Fix carbon = (%moisture + %ash + %volatile matter) × 100

In ASTM D1298, what is the purpose of determining the density/relative density/API gravity of petroleum products?

• To measure the acidity of the product

• To determine the flash point

• To assess the color of the product

• To classify and characterize the product

In ASTM D1298, which instrument is commonly used to measure the density/relative density/API gravity of petroleum products?

• Spectrophotometer

• Refractometer

• Hydrometer

• Chromatograph

In the copper strip corrosion test (ASTM D130), how is the severity of corrosion classified?

• By measuring the weight loss of the copper strip

• By assessing the color change of the copper strip

• By determining the thickness of corrosion products on the copper strip

True or False ?: According to ASTM D130, the preparation of the copper strip is a crucial step to ensure consistent corrosion across the entire strip.

• True

• False

What is the primary purpose of the automatic titration systems used in ASTM E203 (standard test method for water)?

• To measure the color of the sample

• To determine the flash point of the substance

• To perform Karl Fischer titration for moisture content

• To assess the viscosity of the material

In ASTM D86 (distillation of petroleum products and liquid fuels), substances are categorized as group 1, 2, 3, or 4 based on properties, excluding

• dry point

• vapor pressure

• IBP

• EP

The uniform average condensation rate from 5% recovered to 5 mL in the flask is:

• 3-4 mL/min

• 4-5 mL/min

• 5-6 mL/min

• 6-7 mL/min