The Scholar's Depot: Where Knowledge Meets Opportunity

Flame quality has no effect on the cad cell - False A material that will easily allow electrons to pass is described as - Conductor The safety ground is required by UL to be colored - Green A solenoid valve operates on the following principle - Electromagnetism What type of meter requires a battery - Ohmmeter The purpose of a limit control is - Safety Switching relays for heating systems can be found in the following switching configurations - SP-ST, DP-ST, DP-DT. All th...

The most common type of burner design in use today is the - High pressure atomizing Poor draft due to a faulty chimney may be improved by installing a good - •Draft inducer The pressure differential produced by chimneys is best measured with a draft gauge in - Inches of water column The most important draft measurement to be taken on any oil-fired unit is - The draft at the breech The draft over the fire The proper location to install a draft inducer is - •In the flue pipe ...

Regulating valve - To build up and maintain the proper operating pressure for atomizing the oil Ignition transformer or solid-state igniter - provides a "step up" from the line voltage of 120 volts to over 10,000 volts Nozzle assembly - consists of the oil feed pipe (called the nozzle line), the nozzle, nozzle adapter, electrodes, transformer connections, and on some burners, a flame retention ring. Combustion head - creates a specific pattern of air at the end of the air tube ...

What 3 pieces of information are found on an oil nozzle? - Spray angle, Spray pattern, GPH What is the function of the nozzle? - The nozzle atomizes the oil while delivering a fixed amount of fuel into the combustion chamber. At what pressure are nozzles rated at? - Minimum 100 PSI What material is a cad cell made from? - Cadmium sulfide coated ceramic disk When a cad cell senses a flame and sees light, what happens to the resistance? - The resistance increases What is the oh...

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Pulmonary valve - A semilunar valve between the right ventricle and the pulmonary artery. Closed when RV relaxing Tricuspid valve - valve between the right atrium and the right ventricle Closed when RV contracts Resident Flora - permanent residents of skin, not readily removable by hand washing, nonpathogenic Transient Flora - pathogenic, loosely attached to skin, easily removed, picked up by direct contact Standard Precautions - a set of infection control practices used to pr...

Pulmonary valve - A semilunar valve between the right ventricle and the pulmonary artery. Closed when RV relaxing Tricuspid valve - valve between the right atrium and the right ventricle Closed when RV contracts Resident Flora - permanent residents of skin, not readily removable by hand washing, nonpathogenic Transient Flora - pathogenic, loosely attached to skin, easily removed, picked up by direct contact Standard Precautions - a set of infection control practices used to pr...

Which patient is test for PKU A. Newborn B. Cancer C. Mentally handicapped D. Geriatric - newborn What does ml measure? A. Length B. Volume C. Area D. Weight - volume For accurate measurement where should a volumetric pipette be viewed? A. Above eye level B. Below eye level C. At an angel D. At eye level - at eye level Oxygen passes to the tissues from blood via which structure? A. Lymphatic vessels B. Arteries C. Arterioles D. Capillaries - capillaries What is dh...

Hyperphosphatemia may be due to which of the following? A. Kidney failure. B. Hypercalcemia. C. Very poor nutrition. D. Osteomalacia. - a Hypercalcemia, very poor nutrition, and osteomalacia can be typical results of hypophosphatemia. Diabetic ketoacidosis and liver disease can be a result of hyperphosphatemia. Which of the following is the adult reference range for the calcium test? A. 60 - 80 g/L B. 35 - 50 g/L C. 2.2 - 2.6 mmol/L D. 0.80 - 1.45 mmol/L - c Which of the followi...

Protective isolation - for patients who must be in completely sterile environment, gowns gloves and masks, hands must be washed upon entering and leaving room Strict isolation - practiced with highly contagious diseases or viruses that may be spread by air and/or contact. Must wear gowns gloves and masks Enteric isolation - Prevents the transmission of contagious diseases that are spread through direct contact, gowns and gloves are needed Geiger- Mueller counter - which instrument d...