4A ABSA Top Possible Questions and Answers 2024(UPDATED)

where do we use stays on a fire-tube boiler? A) at the top of the boiler b)outside of the boiler to mounting brackets c) in the steam space of the boiler d)between the tubes - C vanstone flange held in place? A)screwed fittings B)loosely C) threaded d)star pattern - B effiency of electrostatic precipitator? a) 84% b)92.9% c)98.9% d)99.9% - D what is aluminum made from? 1)pig iron 2)aluxes 3)bauxite 4)copper - 3 what is a class C fire? a)electrical fire b)metal fire c)kitchen fire d)wood fire - A name of field rotation speed? A)gernerator action B)magnetic flux C)motor action D)synchronous speed - D cooling towers are used to reduce? a)energy waste b)chemical/pollution c)GHG"S d)thermal pollution - D CSA BSI section7 describes a) repairs and alterations b) refrigeration equipment c)identification d)pressure vessels - D what is the number of coils in the secondary winding if the primary has 120V and 300 turns and outputs 12v? a) 3000 b)4.8 c)48 d)30 - D MSDS provider