Day 1: Fundamentals & Working Fluid Properties

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Day one: Fundamentals and Working Fluid Properties

Absolute pressure is defined as: A. Gage pressure minus atmospheric pressure

B. Atmospheric pressure minus vacuum pressure

C. Barometric reading multiplied by specific gravity

D. Hydrostatic head divided by fluid density

Specific volume is defined as:

A. Mass per unit volume

B. Total weight divided by volume

C. Volume per unit mass

D. Ratio of liquid density to water density

Specific gravity of a gas is referenced against the density of:

A. Pure water

B. Standard air

C. Mercury

D. Hydrogen

The internal energy of an ideal gas depends primarily on its:

A. Volume

B. Pressure

C. Temperature

D. Elevation

Flow work represents: A. The potential energy due to liquid elevation

B. Molecular kinetic energy caused by heat

C. Energy required to push fluid across a boundary

D. Total heat absorbed across a cycle

Enthalpy is the sum of:

A. Kinetic energy and potential energy

B. Internal energy and flow work

C. Heat added and entropy

D. Work output and friction loss

Stagnation enthalpy accounts for ordinary enthalpy plus:

A. Elevation potential energy

B. Kinetic energy brought to rest

C. Molecular internal energy

D. Condenser heat rejection

For steady fluid flow in a pipe, the product of cross-sectional area, velocity, and density equals:

A. Volume flow rate

B. Total dynamic head

C. Mass flow rate

D. Gage pressure

The Zeroth Law of Thermodynamics

establishes the concept of:

A. Conservation of energy

B. Direction of heat flow

C. Temperature measurement

D. Absolute entropy

The First Law of Thermodynamics is based on the principle of:

A. Absolute zero temperature

B. Conservation of energy

C. Degradation of energy

D. Maximum efficiency

According to the Third Law of

Day two: Ideal Gas Processes and Thermodynamic Cycles

Day Three: Diesel, Brayton Cycles and Gas Mixtures

Four. The open gas turbine cycle is based on the:

Seven. Backwork ratio in a gas turbine power plant is defined as:

Eight. Dalton's Law states that total pressure of a non-reacting gas mixture equals:

Nine. The partial pressure of a constituent gas in an ideal gas mixture is proportional to its:

Ten. The mass of air supplied compared to the fuel consumed is called:

Eleven. Expansion in an ideal Brayton cycle gas turbine occurs:

Twelve. The expansion ratio in a Diesel cycle is defined as:

Thirteen. The apparent molecular weight of a gas mixture given percent volume of each gas is calculated from:

Fourteen. The gas constant of a gas mixture is calculated by dividing universal gas constant by:

Fifteen. Heat rejection in an ideal Diesel cycle occurs at:

Sixteen. In an ideal Brayton cycle, heat rejection to the environment occurs at:

Seventeen. Compression in both the Otto and Diesel cycles takes place under:

Eighteen. The net work output of a gas turbine system equals:

Nineteen. In a volumetric analysis of dry air, nitrogen comprises approximately:

Twenty. In an ideal gas mixture, the volume percentage of each constituent gas is equal to its:

Twenty-one. In a compression-ignition engine, fuel ignition is initiated by:

Twenty-two. The ratio of cylinder volume at fuel cut-off to clearance volume in a Diesel cycle is the:

Twenty-three. Compression pressure ratio relates discharge pressure to suction pressure as:

Day Four: Pure Substances and Rankine Cycle

Ten. The primary thermodynamic cycle used in modern steam power plants is the:

Day Five: Fuels, Combustion, Variable Load and Boilers

Day 6: Steam Engines, Turbines, Geothermal & Chimneys

Day Seven: Diesel Power Plants and Hydroelectric Systems

Day eight: Machine Foundations and Heat Transfer

Day 10: Refrigeration, Heat Pumps & Psychrometry

Day eleven: Air-Conditioning, Psychrometry, Cooling Towers and Dryers: Terms Reviewer and Practice Problems

Overview

The text presents a comprehensive set of questions focused on the fundamentals of fluid properties and thermodynamics, aimed at enhancing understanding of key engineering concepts. It serves as an educational resource for students or professionals in mechanical engineering or related fields.

Key Points

1Absolute pressure is the measurement of pressure irrespective of atmospheric pressure
2The First Law of Thermodynamics emphasizes conservation of energy
3Enthalpy combines internal energy with flow work for thermodynamic processes
4The ideal gas laws describe relationships between pressure, volume, and temperature
5The Carnot cycle is known for achieving maximum thermal efficiency between two temperatures.

Details

Category: Technology and Engineering

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