1.
Build-up and rough spots on the inside of a pipeline occurs as liquid velocity increases. At some critical velocity, the flow pattern becomes more turbulent. Which of the following statements about turbulence is correct?
2.
When excavating for a sewer, you start at the manhole and cut 20 feet horizontally, 16 feet deep, with a 3-foot clearance above the top of the sewer main. You have proceeded:
3.
When working with hydraulic shoring, on which side of the trench should the hose be?
4.
Which of the following may be used if hydraulic shoring fluid is not available?
5.
Type "D" pipe joints are:
6.
Which of the following statements about excavations is not true?
7.
Cast-in-place concrete pipe must be constructed of:
8.
After placing reinforced concrete pipe, any open lift holes must be filled with:
9.
Which nonpetroleum material would be of most concern to a contractor working on an oil pipeline project?
10.
What is the most effective method of controlling internal corrosion of oil pipelines?
11.
What sort of PPE (personal protective equipment) is recommended when using cleaning solvent?
12.
What should be done with lifelines, safety harnesses, and shock-absorbing lanyards that have been subjected to impact loading?
13.
What is the longest standard length of a scaffold plank?
14.
On a 120V circuit, what color is the (protective) ground wire?
15.
What is the minimum distance apart that acetylene and oxygen cylinders must be stored?
16.
Which of the following is a correct method for storing acetylene cylinders?
17.
Which of the following is the best choice for hoisting a full gas cylinder?
18.
Cylinders containing ______ shall not be taken into confined spaces.
19.
A dry chemical or carbon dioxide fire extinguisher rated at least ______ must be kept near operations where bottled fuel gases are being used.
20.
No more than ______ of paints, solvents, and chemicals may be stored in a room unless an approved safety storage cabinet is present.
