Skills and Trades

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An angle grinder is used to grind _____. a. soft, porous materials b. imperfections in wood c. ... Started by P68T	3 Replies 310 Views	Jul 24, 2018 by Eunice618
If a wire rope sling appears to be damaged, the decision to keep it in service must be made by a ... Started by Mr. Wonderful	1 Replies 76 Views	Jul 24, 2018 by frejo
Which style of hook is designed to be used on alloy steel chain slings? a. Grab hook b. Eye hook ... Started by fagboi	1 Replies 162 Views	Jul 24, 2018 by Ksh22
When a tattle-tail has been pulled into the jacket of a synthetic sling, the sling most likely has ... Started by cmoore54	1 Replies 322 Views	Jul 24, 2018 by abctaiwan
Because of the need for increased toughness, shackles for most overhead lifting are made from _____. ... Started by kfurse	3 Replies 109 Views	Jul 24, 2018 by duke02
A type of hand-operated winching device that should never be used for vertical overhead lifting is a ... Started by dollx	1 Replies 302 Views	Jul 24, 2018 by xthemafja
Air systems used only for heating generally require _____. a. more airflow than systems used for ... Started by ap345	1 Replies 107 Views	Jul 24, 2018 by xoxo123
When a change in the volume of airflow is known, Fan Law 1 can be used to calculate the _____. a. ... Started by Bob-Dole	1 Replies 75 Views	Jul 24, 2018 by tkempin
An instrument that provides a direct reading of relative humidity is the _____. a. sling ... Started by 09madisonrousseau09	3 Replies 317 Views	Jul 24, 2018 by Juro
The type of fan or blower with a blade design that is self-cleaning and a good choice for air ... Started by cherise1989	1 Replies 93 Views	Jul 24, 2018 by tuate
Air distribution systems with high sidewall outlets generally _____. a. favor heating over ... Started by rosent76	1 Replies 62 Views	Jul 24, 2018 by komodo7
The function of a damper in an air distribution system is to _____. a. distribute air uniformly ... Started by tnt_battle	1 Replies 63 Views	Jul 24, 2018 by IRincones
In a split-system air-to-air heat pump, the coil that absorbs heat in the heating mode is referred ... Started by fnuegbu	3 Replies 186 Views	Jul 24, 2018 by amy.lauersdorf90
How does the reversing valve switch a heat pump between heating and cooling modes? a. It reverses ... Started by skymedlock	1 Replies 103 Views	Jul 24, 2018 by InfiniteSteez
What is the primary purpose of the low-pressure control in a heat pump? a. Cycles compressor off ... Started by PhilipSeeMore	1 Replies 71 Views	Jul 24, 2018 by srodz
Where is the reversing valve located in a split-system air-to-air heat pump? a. Air handler b. ... Started by fnuegbu	1 Replies 99 Views	Jul 24, 2018 by moormoney
When calculating the kW output of a resistive heating element, a correction factor is applied when ... Started by big1devin	3 Replies 83 Views	Jul 24, 2018 by braelync
How are kilowatts (kW) converted to Btus? a. Divide each kW by 3,413 b. Divide each kW by 12,000 ... Started by mwit1967	1 Replies 83 Views	Jul 24, 2018 by vish98
In a typical oil burner, the oil is ignited by _____. a. a hot surface igniter b. a pilot light ... Started by wrbasek0	1 Replies 100 Views	Jul 24, 2018 by zhanghao
The component that turns the oil burner and blower on and off in response to external commands is ... Started by P68T	1 Replies 148 Views	Jul 24, 2018 by ebenov
A two-line oil piping system is used when the oil supply level is below the burner because it _____. ... Started by wenmo	3 Replies 101 Views	Jul 24, 2018 by Tabitha_2016
An uncovered cad cell tested with an ohmmeter produces a reading of 800. The next step is to _____. ... Started by 123654777	1 Replies 51 Views	Jul 24, 2018 by mbcrismon
Dividing a unit's cooling output in Btus during its normal annual usage period by the total energy ... Started by mrsjacobs44	1 Replies 108 Views	Jul 24, 2018 by wilsonbho
Which of the following is the correct method for troubleshooting an electronic time delay? a. ... Started by asan beg	1 Replies 134 Views	Jul 24, 2018 by joechoochoy
The maximum length of the trunk duct in an extended plenum system is _____. a. 12 b. 4' c. 16' ... Started by jeatrice	3 Replies 98 Views	Jul 24, 2018 by emilymalinowski12