Red seal online 313a practice test AND ANSWERS ALL CORRECT 2025 SOLUTION GUARANTEED GRADE A+

Red seal online 313a practice test AND ANSWERS ALL CORRECT 2025 SOLUTION GUARANTEED GRADE A+ What would be the minimum VA requirment for a 24v AC transformer powering 4 thermal electric expansion valves with a resistance of 150 across each heater? 15.4 3 multiple choice options What would be the problem on a time initiated, temperature terminated defrost if the defrost cycle runs full time during periods of light coil frosting? Faulty defrost thermostat 3 multiple choice options If the pressure differential across the circulating pump is 21.65 psi, how many feet of head is the pump capable of lifting? 50 3 multiple choice options When testing a compressor motor winding with a megger, what reading would indicate a good clean system? infinity 3 multiple choice options What is the minimum required sleeve size when installing a 2 in. pipe with 1 1/2 insulation through a 8 in. concrete block exterior wall? 6 3 multiple choice options What is the probable cause of high suction pressure on a heat pump? leaking four way valve 3 multiple choice options How should a load be lifted with a wrap around sling when crushing of the load is a big concern Place a spreader above and below the load 3 multiple choice options Which 3 instrument are required to check the calibration of and enthalpy control on the economiser of a rooftop air conditioning unit? Thermometer, sling phychrometer, and multi meter 3 multiple choice options What is the indication of a plugged metering device? high suction gas super heat 3 multiple choice options what must be verified before replacing the electronic control board if the onboard diagnostic fault is incorrect verify power supply, all inputs and loads are properly connected and true 3 multiple choice options What amperage capacity should the supply wiring be rated for a refrigeration fixture which has a 208v power supply and the following loads -4 evap fan motors rated at 9w each -4 What is the principle function of an expansion tank in a hot water system? It allows the volume of the water in the system to change to maintain working pressure 3 multiple choice options What is the minimum required hole size to accommodate a 1 in. copper pipe with 3/4 insulation? 2 5/8 3 multiple choice options When diagnosing the motor winding on a hermetic compressor, the following values are noted; (C) to (S) = 18 ohms (S) to (R) = 21 ohms What should the (C) to (R) value be? 3 3 multiple choice options With the compressor running, what is the proper procedure to check the ability and and the elapsed time of an oil failure control to lock the compressor out? jump contacts 1&2 3 multiple choice options What is the cooling capacity of a water chiller operating with a 40 degree F evaporator temp, return water temp of 50 degree F and a 45 degree F supply water temp if the water flow rate is measured at 200 gpm?" 600,000 3 multiple choice options When constructing a walk in freezer box, where should the vapour barrier be installed outside on the warmest side 3 multiple choice options what is the cooling capacity of a water chiller operating with a 40 degree F evaporator temp., return water temp of 50 degrees F and a 45 degree F supply water temp if the water flow rate is measured at 150 gpm? 450,000 3 multiple choice options What is the air velocity if a piott tube connected to and incline manometer gauge reads .2 "wc 1,791 fmp 3 multiple choice options Which of the following is the minimum requirement to control smoke circulation on a high rise building duct type smoke detectors 3 multiple choice options An unfinished basement of an existing dwelling unit is being converted to an suit. which of the following is the minimum permitted headroom clearance below beams that run in any part of the acess to exit within this office suite is? 1,950 3 multiple choice options On access ladders for chimneys, which of the following materials is not acceptable for rungs alminum 3 multiple choice options On the brine side of the cooling coils in an ice making plant, there is ice formation. Which of the following is correct? increases the time required for ice manufacturing 3 multiple choice options On a high side float, the float and the mechanism are located at which of the following? high side of the system 3 multiple choice options Where does the water enter on a vertical shell and tube condenser from which of the following? top 3 multiple choice options What will re circulation of brine do in an ice making feild? decrease the time required for making ice 3 multiple choice options Which is the correct method to measure the pressure in a system that is less than atmospheric? inches of vacuum 2 multiple choice options Which of the following will the booster compressor discharge into? suction of the main compressor 3 multiple choice options Capacity of a centrifugal compressor is often governed by which of the following? changing the condenser pressure 2 multiple choice options Corrosion of metal parts in a refrigeration system using freon is greater with which of the following? water dissolved in refrigerant 2 multiple choice options where is the oil separator located in a system between the compressor and the condenser 2 multiple choice options which of the following is the best refrigerant for -110 degrees co2 3 multiple choice options Which of the following temperatures is best for making ice? 16 degrees F 3 multiple choice options a receiver is a device from which of the following? not used in all refrigeration systems 3 multiple choice options heat will enter the evaporator through which of the following? radiation, convection, and conduction 3 multiple choice options which of the following can dirty condenser tubes have the possibility to lead to? increase in head pressure 2 multiple choice options Excessive head pressure in a refrigeration system is often caused by CONTINUED..