The total heat of the air is a function of

The fuel injection process in diesel engine starts when the piston ______

A type of valve connected from discharge of compressor directly to suction that is normally closed and will open automatically only if there is high discharge pressure

Which of the following is NOT a part of low pressure side in refrigeration system?

Type of turbine that has a specific speed below 5.

The fuel used in a power plant that is used during peak periods.

If Joule Thomson coefficient is equal to zero, then the process will become

When the air duct system serves several enclosed spaces, the permissible quantity of refrigerant in the system shall not exceed the amount determined by using the total volume of those spaces in which the airflow cannot be reduced to less than ____ of its maximum when the fan is operating

Cascade refrigeration cycle is often used in industrial process where objects must be cooled to temperature below:

Foundation bolts of specified size should be used and surrounded by a pipe sleeve with an inside diameter of at least

Which of the following is NOT the cause of black smoke in diesel engine?

Boiling point of Freon-12 at atmospheric pressure is:

Secondary refrigerant is a liquid used for the transmission of heat, without a change of state, and having no flash point or a flash point above ______ as determined from ASTM

Refrigerant consisting of mixtures of two or more different chemical compounds, often used individuals as refrigerant for other applications.

Is the most common dryer used which consist of rotating cylinder inside which the materials flow while getting in contact with hot gas.

The refrigerant used in steam jet cooling is:

Presently the highest steam temperature allowed at the turbine inlet is about ______.

Is the most important safety device on the power boiler.

Refers to blends comprising multiple components of different volatile that, when used in refrigeration cycles, change volumetric composition and saturation temperature as they evaporate (boil) or condense at constant pressure.

In brayton cycle, the heat is transformed during what process?

Typical compression ratio of Otto cycle is

As a rule of thumb, for a specified amount of compressed air, the power consumption of the compressor decreases by ______________ for each 3 deg C drop in the temperature inlet air to the compressor.

For multi stage compression of an ideal Brayton cycle, the back ratio will

The space above a suspended ceiling shall not be included in calculating the permissible quantity of refrigerant in the system unless such space is continuous and is part of the air return system

Is the speed of a turbine when the head on the turbine is one meter

A high discharge type of turbine

Is one in which a secondary coolant is in direct contact with the air or other substance to be cooled or heated.

The volume as determined from internal dimensions of the container with no allowance for the volume of internal parts.

Is a reaction during which chemical energy is released in the form of heat.

Is a fluid property which refers to the intermolecular attraction by which the separate particles of the fluid arc held together.

A waiting room or large hallway serving as a waiting room

The hands feel painfully cold when the skin temperature reaches

The quantity of refrigerant stored at some point is the refrigeration system for operational, service, or standby purposes.

Is the ratio of the mass of water-vapor in air and the mass of air if it is saturated is called:

By increasing the boiler pressure in Rankine cycle the moisture content at boiler exit will.

Pairs of mating stop valves that allow sections of a system to be joined before opening these valves or separated after closing them

By reheating the steam in an ideal Ranking cycle the heat rejected will.

Two-stroke engine performs ________ to complete one cycle.

In most common design of gas turbine, the pressure ratio ranges from

Refrigerant number R-744 is

Which of the following is not a possible location of service valve?

A service valve for dual pressure-relief devices that allows using one device while isolating the other from the system, maintaining one valve in operation at all times.

Is a premises or that of a premise from which, because they are disabled, debilitated, or confined, occupants cannot readily leave without the assistance of others

Modern way of detecting air compressor leak is by using

For immediate dangerous to life or health (IDHL), the maximum concentration from which unprotected persons are able to escape within _____ without escape-impairing symptoms or irreversible health.

An enclosed passageway that limits travel to a single path.

Refrigerant number R-1150 is

If the fluid passed through a nozzle its entropy will:

During hydrostatic test, the safety valves should be

Component of absorption refrigeration system in which the solution is cooled by cooling water.

If the cut-off ratio of diesel cycle increases, the cycle efficiency will

For foundation of stacks, the maximum pressure on the soil is equal to the pressure due to the weight and the ___________.

Use to increase the capacity of condenser

Type of refrigerant control designed to maintain a pressure difference while the compressor is operating.

Two most common gases employed in Stirling and Ericsson cycles are.

Which of the following is NOT a part of high pressure side in refrigeration system?

Any device or portion of the equipment used to increase refrigerant pressure

Which of the following is not a method of starting a diesel engine?

Where deaerating heaters are not employed, it is recommended that the temperature of the feed water be not less than ______

Use to minimize the speed rise due to a sudden load rejection

A coil in series with evaporator that is use to prevent the liquid refrigerant entering the compressor

A continuous and unobstructed path of travel from any point in a building or structure to a public way

Which of the following is NOT a type of water cooled condenser in refrigeration?

A type of geothermal plant used when there is a presence of brine extracted from underground

Refrigerant R-40 is

Tubing that is unenclosed and therefore exposed to crushing, abrasion, puncture, or similar damage after installation.

Is use to subcooled the refrigerant from the condenser