Machine Design Elements I past board exam Study
Questions with 100% Correct Answers| Verified-
It is a science of motion that can be solved in terms of scalar or vector algebra
a. kinematics
b. curvilinear translation
c. projectiles
d. acceleration - ✔✔a. kinematics
A system of forces in space is in equilibrium if two equal and opposite collinear forces are
added, which of the following if any is true?
a. equilibrium is destroyed
b. equilibrium is maintaned
c. none of these is true
d. an unbalanced of moment exist - ✔✔b. equilibrium is maintaned
Metal that assists lubrication or lubricant in itself
a. zinc
b. antimony
c. babbitt
d. lead - ✔✔c. babbit
A mechanism which usually do the indexing in a machine tool
a. universal chuck
b. slotter
c. dividing head
,d. indexing - ✔✔c. dividing head
It equalizes the energy exerted and the work done thus preventing excessive or sudden changes
of speed
a. flywheel
b. balance of wheel
c. all of these
d. flywheel pulley - ✔✔c. all of these
The smallest area at the point of rupture of a tensile specimen divided by the original area is
called
a. percentage elongation
b. Izod test
c. Charpy test
d. percentage reduction of area - ✔✔d. percentage reduction of area
The product of the resultant of all forces acting on a body and the time that the resultant acts
a. angular impulse
b. angular momentum
c. linear impulse
d. linear momentum - ✔✔c. linear impulse
Which of the following is not a structural class of steel?
a. low carbon steel
b. tool and die steel
c. high chrome alloy steel
d. high strength low alloy steel - ✔✔b. tool and die steel
,poison's ratio is the ratio of
a. shear strain to compressive strain
b. elastic limit to compressive strain
c. lateral strain to longitudinal
strain
d. elastic limit to proportional limit - ✔✔c. lateral strain to longitudinal
strain
All are associated with the grade of steel except:
a. SAE 43XX
b. SAE 13XX
c. SAE 10XX
d. SAE 74XX - ✔✔d. SAE 74XX
A property of material which relates the lateral strain to the longitudinal strain:
a. stress
b. strain
c. Poison's ratio
d. strength - ✔✔c. Poison's ratio
The maximum stress to which a material may be subjected before failure occurs
a. ultimate strength
b. ultimate stress
c. endurance limit
d. tensile stress - ✔✔b. ultimate stress
, Hypoid gear is a special type of gear like
a. worm gear
b. spur gear
c. herringbone gear
d. bevel gear - ✔✔d. bevel gear
Considered a maximum safe center distance of sprockets should be _______ pitches. Very long
center distance cause catenary tension in the chain.
a. 70
b. 80
c. 60
d. 50 - ✔✔b. 80
Cold working of steel plates make the metal
a. tougher
b. more ductile
c. harder
d. more malleable - ✔✔c. harder
Recommended best cutting angle of drill for work on steel or cast iron is _____degrees.
a. 48
b. 63
c. 59
d. 50 - ✔✔c. 59
In shear pin or breaking pin design, we may use the data experienced by link belt from 1/8 inch
to 1 inch pins and the breaking stress is _____ksi.
a. 40
Questions with 100% Correct Answers| Verified-
It is a science of motion that can be solved in terms of scalar or vector algebra
a. kinematics
b. curvilinear translation
c. projectiles
d. acceleration - ✔✔a. kinematics
A system of forces in space is in equilibrium if two equal and opposite collinear forces are
added, which of the following if any is true?
a. equilibrium is destroyed
b. equilibrium is maintaned
c. none of these is true
d. an unbalanced of moment exist - ✔✔b. equilibrium is maintaned
Metal that assists lubrication or lubricant in itself
a. zinc
b. antimony
c. babbitt
d. lead - ✔✔c. babbit
A mechanism which usually do the indexing in a machine tool
a. universal chuck
b. slotter
c. dividing head
,d. indexing - ✔✔c. dividing head
It equalizes the energy exerted and the work done thus preventing excessive or sudden changes
of speed
a. flywheel
b. balance of wheel
c. all of these
d. flywheel pulley - ✔✔c. all of these
The smallest area at the point of rupture of a tensile specimen divided by the original area is
called
a. percentage elongation
b. Izod test
c. Charpy test
d. percentage reduction of area - ✔✔d. percentage reduction of area
The product of the resultant of all forces acting on a body and the time that the resultant acts
a. angular impulse
b. angular momentum
c. linear impulse
d. linear momentum - ✔✔c. linear impulse
Which of the following is not a structural class of steel?
a. low carbon steel
b. tool and die steel
c. high chrome alloy steel
d. high strength low alloy steel - ✔✔b. tool and die steel
,poison's ratio is the ratio of
a. shear strain to compressive strain
b. elastic limit to compressive strain
c. lateral strain to longitudinal
strain
d. elastic limit to proportional limit - ✔✔c. lateral strain to longitudinal
strain
All are associated with the grade of steel except:
a. SAE 43XX
b. SAE 13XX
c. SAE 10XX
d. SAE 74XX - ✔✔d. SAE 74XX
A property of material which relates the lateral strain to the longitudinal strain:
a. stress
b. strain
c. Poison's ratio
d. strength - ✔✔c. Poison's ratio
The maximum stress to which a material may be subjected before failure occurs
a. ultimate strength
b. ultimate stress
c. endurance limit
d. tensile stress - ✔✔b. ultimate stress
, Hypoid gear is a special type of gear like
a. worm gear
b. spur gear
c. herringbone gear
d. bevel gear - ✔✔d. bevel gear
Considered a maximum safe center distance of sprockets should be _______ pitches. Very long
center distance cause catenary tension in the chain.
a. 70
b. 80
c. 60
d. 50 - ✔✔b. 80
Cold working of steel plates make the metal
a. tougher
b. more ductile
c. harder
d. more malleable - ✔✔c. harder
Recommended best cutting angle of drill for work on steel or cast iron is _____degrees.
a. 48
b. 63
c. 59
d. 50 - ✔✔c. 59
In shear pin or breaking pin design, we may use the data experienced by link belt from 1/8 inch
to 1 inch pins and the breaking stress is _____ksi.
a. 40
