Adding ________ to latex improves caulk's flexibility and response to expansion and contraction
A) Silicone B) Polyurethane C) Epoxy D) Acrylic
A
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Which of the following is true with regard to scissor lifts?
a. Scissor lifts are insulated to protect against electrical contact. b. Lifts may only be operated from a platform operator's station. c. All scissor lifts operate in the same way. d. Conduct safety checks for loose and missing parts before operating the lift.
When using a laser level, the laser transmitter is level with the end receiver when the display window shows a _____.
a. vertical line b. plus sign c. zero d. horizontal line
What is the vapor pressure of propane at T = 275 K, according to the shortcut equation?
A. 117 kPa B. 0.502 MPa C. 1.67 MPa D. 2094. MPa E. None of these.
A nonpolluting control for insect eggs is _____
A) chemical powder B) spray oil C) aerial chemicals D) fumigants