Skills and Trades

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Knowing ________ aids in the prevention of cracking when forming. A) How to control the weld bead ... Started by K@	3 Replies 29 Views	Jul 26, 2018 by ryhom
When must a two-pipe oil delivery system be used? A) When using a high firing rate burner B) ... Started by bobypop	1 Replies 44 Views	Jul 26, 2018 by amanda_14
The output pressure of a high pressure oil pump used in residential oil fired furnaces is A) 100 ... Started by CharlieWard	1 Replies 141 Views	Jul 26, 2018 by cloudre37
400 series stainless steel is magnetic. Indicate whether the statement is true or ... Started by Chloeellawright	1 Replies 58 Views	Jul 26, 2018 by raenoj
Process annealing is done below the transformation temperature of the alloy. Indicate whether the ... Started by CQXA	3 Replies 22 Views	Jul 26, 2018 by SAUXC
There is no way to reliably predict shrinkage in welds. Indicate whether the statement is true or ... Started by daltonest1984	1 Replies 32 Views	Jul 26, 2018 by sarah_brady415
The ignition transformer provide A) 120 to 240 volts AC to the electrodes B) 8,000 to 15,000 ... Started by KimWrice	1 Replies 23 Views	Jul 26, 2018 by stillxalice
The pressure-reducing valve is responsible for A) controlling the hot-water circulator. B) adding ... Started by deesands	1 Replies 72 Views	Jul 26, 2018 by AaaA
Waste oil burners may need to be upgraded to accommodate which maximum grade of oil? A) B4 B) B5 ... Started by ghost!	3 Replies 143 Views	Jul 26, 2018 by fauacakatahaias
Stress relief annealing: A) Reduces residual stresses B) Improves strength and ductility C) ... Started by nevelica	1 Replies 32 Views	Jul 26, 2018 by johnpizzaz
Which cast irons are considered weldable? A) Ductile iron B) Malleable cast iron C) Nodular cast ... Started by newbem	1 Replies 66 Views	Jul 26, 2018 by jaygar71
Techniques to be used to weld tool steel include: A) Preheat weld area B) Peen each pass C) Keep ... Started by colton	1 Replies 46 Views	Jul 26, 2018 by jaygar71
As the refractory temperature increases, the combustion efficiency A) increases B) fluctuates C) ... Started by corkyiscool3328	3 Replies 73 Views	Jul 26, 2018 by chevyboi1976
The cad cell senses the flames by A) By dropping in resistance when exposed to light B) By ... Started by maegan_martin	1 Replies 23 Views	Jul 26, 2018 by ghepp
One highly accurate heat-sensing unit is known as the: A) Digital readout B) Optical thermometer ... Started by go.lag	1 Replies 12 Views	Jul 26, 2018 by snackralk
What is a low-ductility structure that cannot easily withstand external stresses imposed on welded ... Started by jon_i	1 Replies 124 Views	Jul 26, 2018 by izzat
Oscillating the torch when fusion welding cast iron is done in order to: A) Preheat the surface ... Started by JGIBBSON	3 Replies 123 Views	Jul 26, 2018 by parker125
Cast iron welding requires postweld heat treatment. Indicate whether the statement is true or ... Started by storky111	1 Replies 29 Views	Jul 26, 2018 by Cheesycrackers
In a two-pipe system, the pump forces air down what? A) combustion chamber B) oil-return line C) ... Started by vHAUNG6011	1 Replies 20 Views	Jul 26, 2018 by 31809pancho
The normal fan switch off temperature range is A) 85F - 90F B) 125F - 130F C) 95F - 100F D) 140F ... Started by Anajune7	1 Replies 41 Views	Jul 26, 2018 by janieazgirl
Chromium-Molybdenum steels are used in the petroleum industry and for elevated temperature use. ... Started by Brittanyd9008	3 Replies 121 Views	Jul 26, 2018 by uniquea123
The block sequence is used to prevent carbon from entering the diffusion zone. Indicate whether ... Started by eruditmonkey@yahoo.com	1 Replies 71 Views	Jul 26, 2018 by epscape
Unlike welds in steels, welds in aluminum are ________ stronger than the base metal. A) Usually ... Started by 809779	1 Replies 32 Views	Jul 26, 2018 by cdmart10
Weld processes used for welding aluminum are: A) GMAW B) RSW C) GTAW D) All of the ... Started by ARLKQ	1 Replies 194 Views	Jul 26, 2018 by vickybb89
Preheating of the weldment helps to: A) Remove moisture B) Reduce martensite formation C) Reduce ... Started by jessicacav	3 Replies 66 Views	Jul 26, 2018 by Cnarkel