Skills and Trades

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Which of the following is a recommended approach to overcoming a language barrier? a. Use humor ... Started by SGallaher96	3 Replies 32 Views	Jul 24, 2018 by 1_Step_At_ATime
If the torch is not self-igniting, it should be lit using _____. a. kitchen matches b. a ... Started by javeds	1 Replies 37 Views	Jul 24, 2018 by stanleka1
The BCuP series of brazing fillers contains _____. a. phosphorus b. zinc c. nickel d. ... Started by Mr3Hunna	1 Replies 26 Views	Jul 24, 2018 by sabina576
When a regulator has two stages, the first regulator stage is usually _____. a. adjustable within ... Started by dejastew	1 Replies 92 Views	Jul 24, 2018 by Swizqar
The thread on an oxygen hose is always _____. a. a right-hand thread b. a left-hand thread c. ... Started by lbcchick	3 Replies 69 Views	Jul 24, 2018 by mfedorka
Before brazing, the outside of the tubing should be cleaned to a _____. a. satin finish b. dull ... Started by ahriuashd	1 Replies 49 Views	Jul 24, 2018 by chinwesucks
Under what conditions should flux be applied to the inside of the fitting cup? a. When brazing ... Started by sc00by25	1 Replies 23 Views	Jul 24, 2018 by elyse44
Most non-copper metals can be brazed with which of the following filler metals? a. Silver base ... Started by anshika	1 Replies 83 Views	Jul 24, 2018 by aruss1303
The minimum brazing temperature is about _____. a. 1,200F (649C) b. 1,300F (705C) c. 1,425F ... Started by berenicecastro	3 Replies 51 Views	Jul 24, 2018 by lcapri7
When brazing is finished, which of the following valves should be shut off first? a. Acetylene ... Started by asan beg	1 Replies 15 Views	Jul 24, 2018 by tjayeee
At what point should a brazed joint be washed with a wet rag? a. As soon as the brazing is done ... Started by skymedlock	1 Replies 12 Views	Jul 24, 2018 by meow1234
Per NFPA 90A , fiberglass duct may be used in systems that operate with a maximum temperature of ... Started by Garrulous	1 Replies 21 Views	Jul 24, 2018 by stano32
In which of the following applications would fiberglass duct not be acceptable? a. Kitchen ... Started by sabina	3 Replies 28 Views	Jul 24, 2018 by emilymalinowski12
When joining rigid fiberboard duct modules, the end flaps are secured with _____. a. 1-inch ... Started by V@ndy87	1 Replies 18 Views	Jul 24, 2018 by fatboyy09
An entire panel of a duct module should be replaced if the _____. a. damaged area extends to ... Started by mia	1 Replies 21 Views	Jul 24, 2018 by Edwyer
Hanger extensions are determined by _____. a. subtracting the distance between the hanging wires ... Started by vHAUNG6011	1 Replies 44 Views	Jul 24, 2018 by hugthug12
When there is an elbow in fiberglass duct, a hanger must be placed within _____. a. 12 inches of ... Started by ahriuashd	3 Replies 36 Views	Jul 24, 2018 by chreslie
Depending upon the transfer mode being used, GMAW electrode extension lengths vary from 1/4 (6.4 mm) ... Started by elizabeth18	1 Replies 70 Views	Jul 24, 2018 by kbennett34
When running the fourth bead of a GTAW fillet weld in the 1F position, how much of the second bead ... Started by fbq8i	1 Replies 112 Views	Jul 24, 2018 by kardosa007
If the tongue and lace area of a welders safety shoes are exposed, the welder should _____. a. ... Started by KWilfred	1 Replies 99 Views	Jul 24, 2018 by jamesnevil303
The minimum depth for a control joint is _____. a. 3/8 b. 3/4 c. 1 d. ... Started by kodithompson	3 Replies 49 Views	Jul 24, 2018 by elyse44
Before practicing stringer and weave beads using welding coupons made of 1/4 to 3/4 thick mild ... Started by CQXA	1 Replies 80 Views	Jul 24, 2018 by Kdiggy
Arc length is measured from _____. a. the end of the electrode holder to the base metal b. the ... Started by theo	1 Replies 58 Views	Jul 24, 2018 by milbourne11
What happens to water as it is heated? a. It becomes heavier. b. It becomes lighter. c. The ... Started by bio_gurl	1 Replies 44 Views	Jul 24, 2018 by fauacakatahaias
Scotch Marine boilers typically have a _____. a. low profile b. dry base c. vertical ... Started by burchfield96	3 Replies 24 Views	Jul 24, 2018 by Kimmy