Which international agency standardises the numbering system for identifying refrigerants?

Which tool is used for service valve operations in package AC?

Which is eliminated from the system in vacuumising process?

Which device controls the air flow in ducting system?

Which is a positive displacement compressor?

How numerical designations of inorganic refrigerants are assigned?

What is the remedy to remove moisture from the window AC system?

What is the advantage of using flux in brazing?

Which type of switch is used to control the room air temperature in split AC?

Which component is connected in series with bimetal thermo in a frost free refrigerator?

Which type of compressor is used as a vacuum pump?

Which refrigeration system works on directly by the heat energy?

What is the function of remote control in split AC?

Which instrument is used to measure the velocity pressure of air in ducting system?

What is the cylinder colour code of R 22 refrigerant?

How many fan motors are used in split AC?

Which type of condenser is used in window air conditioner?

Which evaporator is known as extended surface evaporator?

What is the category of R 290 refrigerant?

What is the reason for frost accumulation in between fins and tubes of evaporator in frost free refrigerator?

Which is the common terminal while Ohm meter reads AB = 10 Ohm, AC = 15 Ohm and BC = 25 Ohm if the motor terminals are A, B and C?

What is the equivalent of one microfarad in farad?

What is the velocity range of air circulated in car AC?

Which winding has low resistance in resistance start induction run motor?

Which material is used for making disc in energy meter?

Which electronic component senses the temperature in indoor unit of VRV system?

What is the minimum temperature difference in water required between inlet and outlet of water cooled condenser?

Which type of fan motor is used in window air conditioner?

What is the effect of improper alignment of machines while installing a central AC plant?

Which components are used in AHU of central AC plant?

What is the physical state of ammonia at condenser inlet in vapour absorption system?

Which process is done first in split AC for shifting from one place to another?

What is the absolute pressure of gas in a cylinder, if gauge reads 135.3 p.s.i?

Which is the mounting location of evaporator in ductable split unit?

What are the passive components used in electronic circuits?

What is the effect of increased out door temperature in car AC?

Which fan is used in condensing unit of ductable split air conditioner?

Which switch is interlocked to become on if the power isolator is off in package AC?

What is the type of condenser used in direct cool refrigerator?

Which components are connected by metering device in vapour compression cycle?

Which tool is used for trimming the edges of a sheet metal cylinder?

What does BIS stands for?

What type of thread is used in screw jack machine?

Find the lead of a 2 start thread having pitch 1.5 mm?

Which type of thread is used in lathe head screw?

What will be the effect in helix angle if diameter changes for a given lead?

Which formula is used to find crest width of a buttress thread?

What is the nose cutter width of the square threads tool?

What is the formula to calculate the core dia of the square thread?

What is the term the distance from a point on thread to the corresponding point on next thread?