Retempering of mortar, if needed, should be generally done within ______.
A) 1 h of the initial preparation of mortar.
B) 4 h of the initial preparation of mortar.
C) 5-1/2 h of the initial preparation of mortar.
D) 2-1/2 h of the initial preparation of mortar.
E) none of the above.
D) 2-1/2 h of the initial preparation of mortar.
You might also like to view...
Two elements are connected in series as shown in Fig. 9.40. If i = 12 cos (2t - 30°) A, find the element values.
 FIGURE 1.png)
When is the air coil in a water source heat pump the acting evaporator?
A) in the cooling cycle B) in the heating cycle C) in the defrost cycle D) only when the unit is operating
As a CAD technician, visiting construction sites of projects that you've worked on can be helpful in advancing in the office.
Answer the following statement true (T) or false (F)
When large plants grown in the field are dug up for sale, plastic is wrapped around the root system
Indicate whether the statement is true or false