OBT3 Final EXAM Questions with
Guaranteed Pass Solutions All Solved
Graded A+.
Which of the following should be worn when using power tools?
a) Safety glasses
b) A hard hat
c) Leather gloves
d) Safety boots - Answer A
What is the minimum acceptable type of respiratory protection to be used when cleaning a soot
filled furnace? - Answer Disposable Filter Masks
What is the proper vertical to horizontal distance ratio for ladder placement? - Answer 3:1 or
4:1
What muscles or parts of your body should you primarily use to lift a weight from the floor? -
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? - Answer Disconnect from the power source
Name two safety concerns created by the customer's housekeeping practices? - 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: - Answer Insulation, older ceiling tile
Refactory material, cement
You must never use a chisel with a ______________ head - Answer Mushroomed
Name three types of pliers: - Answer Side locked
Linesman
Needle-nose
A _____________ wrench is better suited to loosening tight nuts. - Answer Box
,Name three types of snips: - Answer Combination
Compound
Straight
A masonry drill bit is suited for drilling into concrete due to its ____________ tip - Answer
Carbide
______________ hammers are best suited for striking chisels. - Answer Ball Peen
Name three types of screwdrivers: - Answer Phillips
Robertson
Slotted
___________ should be used when making sharp turn cuts in sheet metal? - Answer
Compound Snips (Aviation Snips)
Name four types of wrenches - Answer Open end, box end, cominations , adjustable
Pliers should not be exposed to excessive: - Answer Heat
_____________ and ____________ determine a screw size. - Answer Length and Diameter
A ______________ is used to anchor into a hollow wall. - Answer Toggle Bolt
True or False:
Sheet metal screws are self tapping. - Answer True
"__________" cleat and an "__________" cleat are used to join sheet metal connections. -
Answer "S" and "Drive"
Name three types of screw heads: - Answer Philips, Robertson, Slotted
A round headed bolt is called a: - Answer Carriage Bolt
Name the two types of thread forms: - Answer National Fine, National Course
, A ____________ hole is required to start most screw types. - Answer Pilot
A sheet metal joint can be further sealed with the use of___________ - Answer High temp
foil tape
Washers help prevent a nut from: - Answer Loosening
The volume of a structure which measures 10 ' long x 6 ' wide x 8 high is: - Answer 480 cu. Ft.
The centigrade system of measurement is broken into __________ units. - Answer 100
The widest measurement of a circle is called the: - Answer Diameter
Which oil nozzle has a wider spray angle:
a) 70° nozzle spray
b) 90 nozzle spray
c)450 nozzle spray
d) 60 nozzle spray - Answer B
A foot has ________inches and a meter has __________centimeters. - Answer 12 inches, 100
centimeter
Convert 40°C to Fahrenheit. - Answer 104F
Vacuum is measured in:
a) Inches of water column (wc)
b) Inches of mercury (inHg)
c) Psi
d) Kpg - Answer B
If a container is 65% full what is the remaining percentage to becoming completely full? -
Answer 35%
A 200 gallon fuel oil tank converts to _______ liters. - Answer 910
Guaranteed Pass Solutions All Solved
Graded A+.
Which of the following should be worn when using power tools?
a) Safety glasses
b) A hard hat
c) Leather gloves
d) Safety boots - Answer A
What is the minimum acceptable type of respiratory protection to be used when cleaning a soot
filled furnace? - Answer Disposable Filter Masks
What is the proper vertical to horizontal distance ratio for ladder placement? - Answer 3:1 or
4:1
What muscles or parts of your body should you primarily use to lift a weight from the floor? -
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? - Answer Disconnect from the power source
Name two safety concerns created by the customer's housekeeping practices? - 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: - Answer Insulation, older ceiling tile
Refactory material, cement
You must never use a chisel with a ______________ head - Answer Mushroomed
Name three types of pliers: - Answer Side locked
Linesman
Needle-nose
A _____________ wrench is better suited to loosening tight nuts. - Answer Box
,Name three types of snips: - Answer Combination
Compound
Straight
A masonry drill bit is suited for drilling into concrete due to its ____________ tip - Answer
Carbide
______________ hammers are best suited for striking chisels. - Answer Ball Peen
Name three types of screwdrivers: - Answer Phillips
Robertson
Slotted
___________ should be used when making sharp turn cuts in sheet metal? - Answer
Compound Snips (Aviation Snips)
Name four types of wrenches - Answer Open end, box end, cominations , adjustable
Pliers should not be exposed to excessive: - Answer Heat
_____________ and ____________ determine a screw size. - Answer Length and Diameter
A ______________ is used to anchor into a hollow wall. - Answer Toggle Bolt
True or False:
Sheet metal screws are self tapping. - Answer True
"__________" cleat and an "__________" cleat are used to join sheet metal connections. -
Answer "S" and "Drive"
Name three types of screw heads: - Answer Philips, Robertson, Slotted
A round headed bolt is called a: - Answer Carriage Bolt
Name the two types of thread forms: - Answer National Fine, National Course
, A ____________ hole is required to start most screw types. - Answer Pilot
A sheet metal joint can be further sealed with the use of___________ - Answer High temp
foil tape
Washers help prevent a nut from: - Answer Loosening
The volume of a structure which measures 10 ' long x 6 ' wide x 8 high is: - Answer 480 cu. Ft.
The centigrade system of measurement is broken into __________ units. - Answer 100
The widest measurement of a circle is called the: - Answer Diameter
Which oil nozzle has a wider spray angle:
a) 70° nozzle spray
b) 90 nozzle spray
c)450 nozzle spray
d) 60 nozzle spray - Answer B
A foot has ________inches and a meter has __________centimeters. - Answer 12 inches, 100
centimeter
Convert 40°C to Fahrenheit. - Answer 104F
Vacuum is measured in:
a) Inches of water column (wc)
b) Inches of mercury (inHg)
c) Psi
d) Kpg - Answer B
If a container is 65% full what is the remaining percentage to becoming completely full? -
Answer 35%
A 200 gallon fuel oil tank converts to _______ liters. - Answer 910
