[PIPE] Question Bank for Advanced Coaching Series | Set 4 – Elements | Part 6

Which of the following is the chemical formula of ethanol?

Which of the following is the chemical formula of heptane?

Which of the following is the chemical formula of hexene?

Which of the following is the chemical formula of toluene?

As the air passes through a nozzle, which of the following will increase?

As the air passes through a diffuser, which of the following will decrease?

As the air passes through a nozzle, which of the following will decrease?

As the air passes through a diffuser, which of the following will increase?

As the air passes through a diffuser, which of the following will NOT be affected?

After passing through a convergent-divergent nozzle the temperature of air will:

After passing through a convergent-divergent nozzle the density of air will:

After passing through a convergent-divergent nozzle, the mach number of air will:

By increasing the temperature source of Carnot cycle, which of the following will not be affected?

By decreasing the temperature source of Carnot cycle, which of the following will not be affected?

By superheating the refrigerant in vapor compression cycle with useful cooling, which of the following will increase? (use per unit mass analysis)

By superheating the refrigerant in vapor compression cycle with useful cooling, which of the following will decrease? (use per unit mass analysis)

By superheating the refrigerant in vapor compression cycle without useful cooling, which of the following will decrease? (use per unit mass analysis)

By superheating the refrigerant in vapor compression cycle without useful cooling, which of the following will increase? (use per unit mass analysis)

By superheating the refrigerant in vapor compression cycle without useful cooling, which of the following will not be affected? (use per unit mass analysis)

By sub-cooling the refrigerant in vapor compression cycle at condenser exit, which of the following will increase? (use per unit mass analysis)

By sub-cooling the refrigerant in vapor compression cycle at condenser exit, which of the following will decrease? (use per unit mass analysis)

By increasing the vaporizing temperature in vapor compression cycle, which of the following will increase? (Use per unit mass analysis)

By increasing the vaporizing temperature in vapor compression cycle, which of the following will decrease? (Use per unit mass analysis)

By increasing the condenser pressure in vapor compression cycle, which of the following will increase? (Use per unit mass analysis)

By increasing the condenser pressure in vapor compression cycle, which of the following will decrease? (Use per unit mass analysis)

By increasing the condenser pressure in vapor compression cycle, which of the following will decrease? (Use per unit mass analysis)

The first commercial high-pass ratio engine has a bypass ratio of _____.

The single-stage expansion process of an ideal Brayton cycle without regeneration is replace by a multistage expansion process with reheating between the same pressure limits. As a result of modification, thermal efficiency will:

Which of the following is/are the application of Brayton cycle?

It used as working fluid in high-temperature application of vapor cycle.

The superheat vapor enters the turbine and expands isentropically and produces work by the rating shaft. The _____ may drop, during the process.

Only _____ of the turbine work output is required to operate the pump.

Superheating the steam to higher temperature decreases the moisture content of the steam at the _____.

Regeneration also provides a convenient means a dearating the feedwater to prevent _____.

Can be apply in Steam turbine cycle (Rankine), Gas turbine cycle (Brayton) and Combined cycle.

In a Rankine cycle with fixed turbine inlet conditions. What is the effect of lowering the condenser pressure the heat rejected will.:

In an ideal Rankine cycle with fixed boiler and condenser pressures. What is the effect of superheating the steam to a higher temperature, the pump work input will:

How do the following quantities change when the simple ideal Rankine cycle is modified with regeneration? The heat rejected will:

During a combustion process, the components which exist before the reaction are called _____.

In an obvious reason for incomplete combustion.

Higher heating value when H₂O in the product of combustion is in _____.

Device which transfer heat from low temperature medium to a higher temperature one is a _____.

A rule of thumb is that the COP improves by _____ for each deg C the evaporating temperature is raised or the condensing temperature is lowered.

Are generally more expensive to purchase and install than other heating systems, but they save money in the long run.

The most widely used absorption system is the ammonia-water system, where ammonia is serves as a refrigerant and H₂O as the _____.

The efficiency of all reversible heat engines operating between the same two reservoirs _____.

A process with no heat transfer is known as _____.

The relative density of a substance is the ratio of its density to the density of:

This type of heat exchanger allows fluids to flow at right angles to each other.

The fact the total energy in any one energy system remains constant is called the principle of _____.