C20 Practice Test 2 Questions & 100% Verified Answers | Latest Update | Already Graded A+

What is the correct type of seam for a grease stop? Pittsburgh lock S cleat welded continuously on outside spot welded on inside : welded continuously on outside Type-B vents are recommended for: incinerators combination gas-oil appliances appliances convertible to solid fuel standard gas-fired furnaces : standard gas-fired furnaces Cranes with a boom longer than 60 ft or with a rating greater than _____ require a boom-angle indicator. 2 | P a g e 5 tons 10 tons 15 tons 20 tons : 15 tons A pressure control responds to: refrigerant temperature condenser pressure expansion valve suction and discharge pressure : suction and discharge pressure The registers for a gravity-type furnace should be located: in the floor in the ceiling high on the wall low on the wall : in the floo