WorksheetsMECHTRIX
Total questions: 50
Worksheet time: 38mins
The use of acids to remove oxides and scale on hot-worked steels is known as
Pulling
Pushing
Picking
Adding
Sense and slope of angles with respect to the reference axes is called _________.
Magnitude
Direction
Vectors
Displacement
What refers to a shape achieved by allowing a liquid to solidify in a mold?
Casting
Scalding
Scolding
Fading
What unit expresses the amount of radiation actually absorbed in the tissue?
Rad
Rbe
Rem
Reb
What are considered as the building blocks for engineering materials?
Atom
Molecule
Nucleon
Proton
What do you call tin mill steel without a coating?
Solid plate
Cladding
Coating
Black Plate
What does the symbol "pH" stands for?
The power of hydroxide compound
The power of hydroxide ion
The power of hydrogen ion
The power of hydrogen
What is the physical appearance of sodium?
silver metal
yellowish gas
White crystal
reddish gas
What is ASTM test for shear strength is designated for plastics?
E324
D731
H967
D732
The principles of kinetic particles are derived from which law?
Newton's first law
Newton's second law
Newton's third law
D'Alembert principle
Name the element that is commonly used in making lasers.
chromium
neodymium
promethium
terbium
______ shows the process of how fluids react to forces.
Continuum mechanics
Directional mechanics
Fluid mechanics
Static mechanics
What type of steel has 0.8% carbon and 100% pearlite?
eutectoid
deutectoid
nuclei
duetoic
The term bronze is used to designate any alloy containing
Copper and boron
Copper and tin
Copper and bronze
Copper and manganese
What is the ratio of the elongation to force?
Compliance of the spring
Compliance of the core
Compliance of the wire
Compliance of the material
. What is the mixing of gases due to molecular motion called?
diffusion
effusion
fusion
fission
What temperature scale is identical to Kelvin scale?
Ideal gas temperature scale
Ideal temperature scale
Absolute gas temperature scale
Triple point temperature scale
Sublimation is direct change from
Liquid to gas phase
Solid to gaseous phase
Gas to liquid phase
Liquid to solid phase
It is a pictorial representation in solving a system.
analytical
polygon
graphical
Mathematical
_____________ is known as the application of fluid mechanics in engineering.
pneumatics
hydraulics
electro-pneumatics
hydro-pneumatics
What is the force of attraction on a body?
Weight
Density
Mass
Number
_____________ refers to the state just before surfaces start to slip.
kinetic motion
dynamic motion
static motion
impending motion
Instructions written by a programmer for a computer use is called?
Hardware
Software instructions
Software
System Software
The dimensionless parameter describing deformation
stress
strain
shearing stress
Elasticity
What term is used to describe a polymer that has a rubber like properties?
Elastomer
plastics
copolymers
polymers
What do you add to compensate for the remaining high iron-oxide content of the steel?
Deoxidizers
Oxidizers
oxides
carbonates
What is the chief ore of titanium?
Glamite
llmenite
tiate
sphalite
. It is the attraction between like molecules
Adhesion
Cohesion
Reduction
Conduction
Compute the internal energy of ice at 0oC as it is change to water same temperature
1.76 kJ
1.67 kJ
3.44 kJ
5.04 kJ
What is the generic name of a class of polymer which is commercially known as nylon?
Polyamide
Polymers
Copolymers
Polygon
The general law of mechanics that stress is directly proportional to strain
Hooke's law
Boyle's law
Shearing stress
Elasticity
What is the emissivity of a black body?
0
1
0.5
0.25
Galvanized steel are steel product coated with
zinc
iron
silicon
boron
What remains constant during a steady-flow process?
mass
energy content of the control volume
Temperature
mass and energy content of the control volume
What is the ratio of stress to strain?
Elastic Modulus of the material
Elastic strength of the material
Ultimate strength of the material
Yield stress of the material
What is the measure of rigidity?
ultimate strength
allowable strength
modulus of elasticity
yield strength
Which is NOT a intensive property of thermodynamics?
Temperature
Pressure
Mass
Density
Efficiency of a machine is the ratio of:
Power output to power input
Power input to power output
Total work done to total energy
Total energy to total power
Which support has one moment?
frictionless guide
pin connection
fixed support
roller
Which statement of the second law of thermodynamics states that no heat engine can have a thermal efficiency of 100 percent?
kelvin-planck stmt.
clausius stmt.
kelvin stmt.
rankine stmt.
What is the unit of work?
Newton meter per second
Newton meter
Newton meter squared
one Newton meter or one joule
What is considered as the general purpose, oldest type and widely used cast iron
Silver
Gray iron
iron
Silicon magnesium
What refers to the amount of a product made available for sale?
supply
demand
product
goods
What is another term for Tempering?
Drawing
Toughening
Skidding
Drawing or toughening
The method of applying mechanics that assumes all objects are continuous is called __________.
Mechanics
continuum
Directional mechanics
continuum mechanics
A process during which entropy remains constant is called _____ process
isometric
isochoric
isobaric
isentropic
What is defined as the force per unit area?
pressure
energy
work
power
What property of a light wave is determined by its wavelength?
color
shape
size
density
49. Quantities which posses both magnitude and direction are called ____________.
vectors
magnitude
direction
scalar
The tension in the cable is the same on both sides of the pulley
gravity
frictionless pulley
pulley
friction
