OBT3 EXAM UPDATED Actual Exam Questions and CORRECT Answers
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Course
OBT3
Institution
OBT3
OBT3 EXAM UPDATED Actual Exam
Questions and CORRECT Answers
Which of the following should be worn when using power tools?
a) Safety glasses
b) A hard hat
c) Leather gloves
d) Safety boots - CORRECT ANSWER- A
What is the minimum acceptable type of respiratory protection to be used when c...
OBT3 EXAM UPDATED Actual Exam
Questions and CORRECT Answers
Which of the following should be worn when using power tools?
a) Safety glasses
b) A hard hat
c) Leather gloves
d) Safety boots - CORRECT ANSWER✔✔- A
What is the minimum acceptable type of respiratory protection to be used when cleaning a
soot filled furnace? - CORRECT ANSWER✔✔- Disposable Filter Masks
What is the proper vertical to horizontal distance ratio for ladder placement? - CORRECT
ANSWER✔✔- 3:1 or 4:1
What muscles or parts of your body should you primarily use to lift a weight from the floor? -
CORRECT ANSWER✔✔- Stomach muscles and legs
When changing a drill bit or saw blade on a power tool, what is first action that you should
take? - CORRECT ANSWER✔✔- Disconnect from the power source
Name two safety concerns created by the customer's housekeeping practices? - CORRECT
ANSWER✔✔- Messy and poor lit work areas
Name two areas that each of the following substances may be encountered in the oil heat
trade: Asbestos and Silica: - CORRECT ANSWER✔✔- Insulation, older ceiling tile
Refactory material, cement
You must never use a chisel with a ______________ head - CORRECT ANSWER✔✔-
Mushroomed
Name three types of pliers: - CORRECT ANSWER✔✔- Side locked
,Linesman
Needle-nose
A _____________ wrench is better suited to loosening tight nuts. - CORRECT
ANSWER✔✔- Box
Name three types of snips: - CORRECT ANSWER✔✔- Combination
Compound
Straight
A masonry drill bit is suited for drilling into concrete due to its ____________ tip -
CORRECT ANSWER✔✔- Carbide
______________ hammers are best suited for striking chisels. - CORRECT ANSWER✔✔-
Ball Peen
Name three types of screwdrivers: - CORRECT ANSWER✔✔- Phillips
Robertson
Slotted
___________ should be used when making sharp turn cuts in sheet metal? - CORRECT
ANSWER✔✔- Compound Snips (Aviation Snips)
Name four types of wrenches - CORRECT ANSWER✔✔- Open end, box end, cominations ,
adjustable
Pliers should not be exposed to excessive: - CORRECT ANSWER✔✔- Heat
_____________ and ____________ determine a screw size. - CORRECT ANSWER✔✔-
Length and Diameter
, A ______________ is used to anchor into a hollow wall. - CORRECT ANSWER✔✔- Toggle
Bolt
True or False:
Sheet metal screws are self tapping. - CORRECT ANSWER✔✔- True
"__________" cleat and an "__________" cleat are used to join sheet metal connections. -
CORRECT ANSWER✔✔- "S" and "Drive"
Name three types of screw heads: - CORRECT ANSWER✔✔- Philips, Robertson, Slotted
A round headed bolt is called a: - CORRECT ANSWER✔✔- Carriage Bolt
Name the two types of thread forms: - CORRECT ANSWER✔✔- National Fine, National
Course
A ____________ hole is required to start most screw types. - CORRECT ANSWER✔✔-
Pilot
A sheet metal joint can be further sealed with the use of___________ - CORRECT
ANSWER✔✔- High temp foil tape
Washers help prevent a nut from: - CORRECT ANSWER✔✔- Loosening
The volume of a structure which measures 10 ' long x 6 ' wide x 8 high is: - CORRECT
ANSWER✔✔- 480 cu. Ft.
The centigrade system of measurement is broken into __________ units. - CORRECT
ANSWER✔✔- 100
The widest measurement of a circle is called the: - CORRECT ANSWER✔✔- Diameter
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