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The maximum air temperature within nonmetallic ducts shall not exceed ______ :
If a DC power supply is supplied to primary of a transformer then _______
Primary winding of transformer may burn out
The ungrounded ducts or conduits should be sealed before entering buildings.
Air Intake openings shall be located a minimum of _____ from lot lines or buildings on the same lot:
An ohm meter connected across a 120 volts electrical heater shows 7.5 ohms, how much current the heater draws?
Fuel Oil is defined as Kerosene or any hydrocarbon oil having a flash point not less than ____:
A singe motor is driving 40 volts generator having an over current protection. if the same can also protect the generator when the generator is delivering not more than _______ percentage of its full load current
The interior of any dip tank can be considered as _______location
The ampacity of branch circuit conductors between the controller and multi speed motor shall not be less than _______ percent of the current rating of the windings.
_____ is the Refrigerants removed from a system in any condition without necessarily testing or processing them:
If a single phase motor full load current is 30 Amperes, what is the dual element fuze size to be used as motor branch circuit short circuit protection?
The vertically run metal wire-ways shall be surely supported at intervals not exceeding _______ ft of wire way and shall not have more than one joint between supports.
Four conductors are made up of four different metals with same dimensions, which of the following metal will offer lower resistance for flow of current?
Make up air duct insulation installed within _____ of a Type I commercial kitchen hood shall be noncombustible