WorksheetsMechanical Engineering
Total questions: 23
Worksheet time: 23mins
the process whereby liquid metal, such as gray iron, aluminum, or bronze, is poured into a mold, cooled, and solidified.
Forming
Casting
Machining
Finishing
(a) refers to processes where a sharp metal tool removes material by cutting it. The most common machining methods are drilling, sawing, milling, and turning
Machining tools include drill presses, bandsaws, lathes, and
______________is used to bore round holes into a workpiece.
band saw
milling machine
drill press
lathe
The (a) is a measure of the tendency of the force to produce rotation of a body about a point or axis
When mechanical engineers design products, systems, and hardware, they must apply mathematics and physical principles to model, analyze, and predict system behavior.
Do mechanical engineers model systems using principles from different disciplines?
No, mechanical engineers must apply the laws of thermodynamics
Mechanical engineers apply the principles of physics, chemistry, literature and history
Yes, mechanical engineers should apply the principles of maths and physics
Как переводится "compression"?
кручение
изгиб
сжатие
растяжение
Newton’s three laws of motion:
The forces of action and reaction between two objectives are equal, opposite, and collinear.
Every object remains in a state of rest or uniform motion of constant velocity unless an external unbalanced force acts upon it.
The first law is a formulation of the law of conservation of energy in the context of thermodynamic processes.
An object of mass m, subject to a force F, experiences an acceleration in the same direction as the force with a magnitude directly proportional to the magnitude of the force and inversely proportional to the mass of the object.
Bearings are classified into two broad groups: __________ and ___________/
linear
rolling contact
mounted
journal
Как переводится "Rolling-element bearings"?
подшипники кручения
подшипники верчения
шипы вращения
подшипники качения
(a) is the force applied to a material, divided by the material’s cross-sectional (поперечного сечения) area
The measurement unit of torque(moment of a force):
watt
newton-meter
joule
newton
The moment of _____ is a measure of the tendency of the _____ to produce rotation of a body about a point or axis
(a)
Write the formula for calculating the STRAIN
Give some examples of fixed supports
Выберите правильный термин
Sprocket
прототип, опытный образец
циркуль - штангенциркуль
звездочка, цепное колесо
рулетка, мерная лента
(a) efficiency measures the efficiency of a mechanism or machine in transforming the power input to the device to power output
machine vice
рулетка, мерная лента
лазерный уровень
неразрушающее испытание
машинные тиски
(a) is a machine that converts mechanical energy into electrical energy
A device with blades that can be turned by water, wind, steam, or exhaust gas from combustion that turns a generator in an electricity-producing plant
turbine
micrometer
prototype
Screw
Devices used in mechanical engineering:
laser level
wire gauze
micrometer
tape measure
A step in the process of designing any physical object. In the context of product design, the main goal of it is to minimize cost while meeting product performance goals.
Material selection
Construction
Isolation
Production
3 main types of loading(нагрузка):
compression
joining
tension
torsion
housing
