Safety
What type of equipment are safety glasses, splash goggles and face shields?
a. Eye protection
b. Shop uniforms
c. Eyewear
d. Welding equipment
a. Eye protection
Which of the following best describes a bottle jack?
a. Hand actuated and may be rated to lift loads up to 20 tons
b. Made for heavy lifting
c. Hand actuated and made only for leads under 1 ton
d. Air operated light duty jacks
a. Hand actuated and may be rated to lift loads up to 20 tons
Why should oxygen tank valves be fully opened when in use?
a. To provide sufficient oxygen pressure
b. To prevent inadvertently increasing oxygen after a flame is set
c. It will prolong the service life of the valves
d. Oxygen will leak past valve threads on a partially opened valve
d. Oxygen will leak past valve threads on a partially opened valve
Where does scavenging take place in a four-stroke diesel engine?
a. BCD
b. TDC after the compression stroke
c. Valve overlap
d. 10 to 20 degrees ATDC on the power stroke
c. Valve overlap
Subtraction is taking away a certain quantity from another. The amount that is left after subtraction is done is called the _______.
a. product
b. remainder
c. subtrahend
d. sum
b. remainder
What type of glove should be used to handle dangerous acids or alkalis?
a. Leather gloves
b. Any glove that covers the entire hand
c. Vinyl disposable gloves
d. Hazardous materials gloves
d. Hazardous materials gloves
What should you always do when operating, connecting or disconnecting pneumatic tools?
a. Wear a full face shield
b. Stay away from hot engines or exhaust
c. Wear safety glasses
d. Wear the proper type glove
c. Wear safety glasses
Which of the following metals are easy to cut using oxyfuel gas cutting?
a. high nickel steels
b. cast iron
c. stainless steels
d. low carbon steels
d. low carbon steels
Why are most diesel engines turbo-boosted?
a. To increase the compression ratio
b. Turbo-boosting reduces the required clearance volume
c. To increase the volumetric efficiency of the engine
d. To increase the fuel's heat energy potential
c. To increase the volumetric efficiency of the engine
What does the prefix Kilo mean?
a. one hundredth
b. one thousandth
c. one hundred
d. one thousand
d. one thousand
How do you avoid injury when lifting heavy items?
a. Lift only with your arms
b. Keep your back vertical while lifting
c. Bend over the center of the object
d. Keep you legs straight.
b. Keep your back vertical while lifting
Technician A says that impact sockets are manufactured from harder steel than standard sockets. Technician B says that impact sockets are designed for use on impact guns. Who is correct?
a. A
b. B
c. A and B
d. Neither A nor B
b. B
Which of the following determines the amount of preheat flame required to make a cut?
a. Arc length, material thickness, and cutting tip diameter
b. Amperage, cutting tip diameter, and type of fuel gas
c. Material shape, arc length, and amperage
d. Type of fuel gas and material thickness, shape, and surface condition
d. Type of fuel gas and material thickness, shape, and surface condition
What types of fuels can be used in diesel engines?
a. Any fuel that has a heat energy rating higher then gasoline
b. Hydrocarbon fuels
c. The type of fuel isn't important as long as it has a low fire point
d. gasoline
b. Hydrocarbon fuels
A Navistar MaxxForce 15 engine has a total displacement of 15.2 liters. Convert this into cubic inches.
a. 921 cubic inches
b. 928 cubic inches
c. 934 cubic inches
d. 1,052 cubic inches
b. 928 cubic inches
What should you do before using unfamiliar shop equipment?
a. Ask for help/training on equipment
b. Have the manual available and read it when you make an error
c. Demand certification training from your employer
d. Proceed slowly
a. Ask for help/training on equipment
How many full thimble rotations are required to move a standard micrometer through 0.025 inches?
a. one
b. two
c. five
d. ten
a. one
Any system of ventilation should draw the fumes or smoke away before it rises past the level of the welder's ______.
a. shin
b. hip
c. chest
d. face
d. face
What is another way of saying manifold boost?
a. turbo boost
b. indirect injected
c. direct injected
d. volumetric efficiency
a. turbo boost
What does the prefix milli mean?
a. one hundredth
b. one thousandth
c. one hundred
d. one thousand
b. one thousandth
What precautions should be taken before working under hydraulic hoists?
a. Just make sure the hydraulic valves are in the proper positions
b. Make sure all electrical controls are stopped
c. Make sure it is mechanically supported
d. Make sure it clears your head while standing erect
c. Make sure it is mechanically supported
How many radial strokes are used to identify an SAE grade eight bolt?
a. one
b. three
c. six
d. eight
c. six
Stored oxygen and fuel gas cylinders ______.
a. Can be stored separately or together
b. Must be separated by 20 feet
c. Must be separated by a 20 ft. high wall
d. Must be separated by 5 feet
b. Must be separated by 20 feet
What should be used to check valve seating?
a. machinist's blue
b. dial indicator
c. dial bore gauge
d. plastigage
a. machinist's blue
Convert 36 degrees Celsius to degrees Fahrenheit and round to the nearest of the following values:
a. 32 degrees fahrenheit
b. 50 degrees fahrenheit
c. 100 degrees fahrenheit
d. 360 degrees Fahrenheit
c. 100 degrees fahrenheit