md2

50問 • 2年前

ユーザ名非公開

通報

問題一覧

A heavy rotating body which serves as a reservolt. absorbing and redistributing kinetic energy,

C. Flywheel

Which of the following is not the use of spring?

B. Measure the thickness

The ratio of mean diameter of coil over the coil diameter is known as

C. Spring index

The overall length of the spring when it is compressed until all adjacent coils touched.

D. Solid length

The length of coil spring under no load is know as

B. Free length

in general, steel springs are made of relatively high carbon steel usually

D. more than 0.5%

When heat-treated wire is coiled cold it should be stress relieved for bending stresses after cooling by being heated at some

B. 500°F

A low cost spring material, suitable where service is not severe and dimensional precision is not needed.

A. Hard drawn wire spring

A hard drawn also 80% reduction but it is made grade steel.

B. Music wire

À spring wire with good quality for impact loads moderately high temperature is known as

A. Chromium-silicon

A type of coil where the helical coil is wrapped into a circle forming an annular ring.

D. Garter spring

An elastic stored energy machine element that when released, will recover its basic form.

D. Spring

In laminated spring the strips are provided in different lengths for

A. economy

À type of spring made in the form of a dished washed

A. Belleville spring

A type of spring where thin flat strip wound up on itself 2s a plane spiral, usually anchored at the inside.

C. Motor spring

The majority of colls springs are made of coll tempered carbon steel wire containing carbon.

D. 0.60 to 0.70

The solld length plus the clearance plus the maximum deflection is called

B. Free length

when a apring ia made of duclile material the curvature factor would be

C. unity

The solld length of squared ends is

A. (n + 3 )d

The actual number of coil is in a square and ground ends.

B. n + 2

According to W.M. Griffith the critical frequency of the spring should behold at least times the frequency of application of a periodic load.

D. 20

Experimental results Indicate that the actual frequency of the spring is from

B. 10 to 15%

The free length of ground ends is

D. пр

The ratio of the mean diameter of the spring to the wire diameter is called

С. spring index

The relationship between the force exerted by a spring and its deflection is called

C. spring rate

The shortest length for the spring during norms operation is known as

C. Operating length

Refers to the space between adjacent coils when the spring is compressed to its operating length.

C. Coil clearance

The spring index of valve and clutch is

B. 5

The spring index for general industrial uses should be

D. 8 to 10

Refers to the axial distance from a point on one coll to the corresponding point on the next adjacent coll.

A. Pitch

The most practical spring designs produce a pitch angle is less than

A. 12°

The length of a coil spring times the effective number of coil is called

A. active length

Which of the following material to be used for leaf and coil springs?

D. AISI 4063

Engine valves get shut by means of

D. valve spring

Cross wire grooves are types which

A. absorb shocks because of road unevenness

Refers to a flat or curved made of thin superimposed plates and forming a cantilever or beam of uniform strength.

D. Laminated spring

For springs subjected to light service, the factor of safety of, _Is suggested.

A. 1.5

The_____of parallel connection of spring is always constant.

A. elongation

Typical hub length falls between

B. 1.25D to 2.4 D

The device for smoothing out the power impulses from the engine is known as

C. flywheel

Speedometer drive is generally taken from

C. front wheel

The kind of energy stored in the flywheel is

B. kinetic energy

Flywheel is also known as

A. Balance wheel

Attached to the rear end of the crankshaft is the

B. flywheel

The recommended coefficient of fluctuation of flywheels for punching, shearing, and pressing machine is

A. 0.05 to 0.10

A large rotary machine parts whose function is to store energy and to produce uniform angular velocity of the shaft of reciprocating engine is known as

C. Flywheel

In many flywheel designs about of the weight is concentrated in the hub and am. per cent

B. 30

The function of the flywheel is

D. all of the above

The function of a flywheel is to

B. complete the unuseful stroke

A massive wheel, which by its inertia assists in securing uniform motion of machinery by resisting sudden changes of speed.

C. Flywheel

machine design 2

machine design 2

comprelents

comprelents

md2.2

md2.2

md2 3rd set

md2 3rd set

md2 3b

md2 3b

md3.3

md3.3

pp mid

pp mid

PRE BOARD PIPE

PRE BOARD PIPE

PRE BOARD PIPE 2

PRE BOARD PIPE 2

PRE BOARD PIPE 3

PRE BOARD PIPE 3

PRE BOARD PIPE 4

PRE BOARD PIPE 4

PRE BOARD PIPE 5

PRE BOARD PIPE 5

PRE BOARD PIPE 6

PRE BOARD PIPE 6

PRE BOARD PIPE 7

PRE BOARD PIPE 7

PRE BOARD PIPE 8

PRE BOARD PIPE 8

PRE BOARD PIPE

PRE BOARD PIPE

ECONOMICS JAMES

ECONOMICS JAMES

Machine Design refresher 1-2

ユーザ名非公開 · 6問 · 1年前

Machine Design refresher 1-2

6問 • 1年前

ユーザ名非公開

問題一覧

A heavy rotating body which serves as a reservolt. absorbing and redistributing kinetic energy,

C. Flywheel

Which of the following is not the use of spring?

B. Measure the thickness

The ratio of mean diameter of coil over the coil diameter is known as

C. Spring index

The overall length of the spring when it is compressed until all adjacent coils touched.

D. Solid length

The length of coil spring under no load is know as

B. Free length

in general, steel springs are made of relatively high carbon steel usually

D. more than 0.5%

When heat-treated wire is coiled cold it should be stress relieved for bending stresses after cooling by being heated at some

B. 500°F

A low cost spring material, suitable where service is not severe and dimensional precision is not needed.

A. Hard drawn wire spring

A hard drawn also 80% reduction but it is made grade steel.

B. Music wire

À spring wire with good quality for impact loads moderately high temperature is known as

A. Chromium-silicon

A type of coil where the helical coil is wrapped into a circle forming an annular ring.

D. Garter spring

An elastic stored energy machine element that when released, will recover its basic form.

D. Spring

In laminated spring the strips are provided in different lengths for

A. economy

À type of spring made in the form of a dished washed

A. Belleville spring

A type of spring where thin flat strip wound up on itself 2s a plane spiral, usually anchored at the inside.

C. Motor spring

The majority of colls springs are made of coll tempered carbon steel wire containing carbon.

D. 0.60 to 0.70

The solld length plus the clearance plus the maximum deflection is called

B. Free length

when a apring ia made of duclile material the curvature factor would be

C. unity

The solld length of squared ends is

A. (n + 3 )d

The actual number of coil is in a square and ground ends.

B. n + 2

According to W.M. Griffith the critical frequency of the spring should behold at least times the frequency of application of a periodic load.

D. 20

Experimental results Indicate that the actual frequency of the spring is from

B. 10 to 15%

The free length of ground ends is

D. пр

The ratio of the mean diameter of the spring to the wire diameter is called

С. spring index

The relationship between the force exerted by a spring and its deflection is called

C. spring rate

The shortest length for the spring during norms operation is known as

C. Operating length

Refers to the space between adjacent coils when the spring is compressed to its operating length.

C. Coil clearance

The spring index of valve and clutch is

B. 5

The spring index for general industrial uses should be

D. 8 to 10

Refers to the axial distance from a point on one coll to the corresponding point on the next adjacent coll.

A. Pitch

The most practical spring designs produce a pitch angle is less than

A. 12°

The length of a coil spring times the effective number of coil is called

A. active length

Which of the following material to be used for leaf and coil springs?

D. AISI 4063

Engine valves get shut by means of

D. valve spring

Cross wire grooves are types which

A. absorb shocks because of road unevenness

Refers to a flat or curved made of thin superimposed plates and forming a cantilever or beam of uniform strength.

D. Laminated spring

For springs subjected to light service, the factor of safety of, _Is suggested.

A. 1.5

The_____of parallel connection of spring is always constant.

A. elongation

Typical hub length falls between

B. 1.25D to 2.4 D

The device for smoothing out the power impulses from the engine is known as

C. flywheel

Speedometer drive is generally taken from

C. front wheel

The kind of energy stored in the flywheel is

B. kinetic energy

Flywheel is also known as

A. Balance wheel

Attached to the rear end of the crankshaft is the

B. flywheel

The recommended coefficient of fluctuation of flywheels for punching, shearing, and pressing machine is

A. 0.05 to 0.10

A large rotary machine parts whose function is to store energy and to produce uniform angular velocity of the shaft of reciprocating engine is known as

C. Flywheel

In many flywheel designs about of the weight is concentrated in the hub and am. per cent

B. 30

The function of the flywheel is

D. all of the above

The function of a flywheel is to

B. complete the unuseful stroke

A massive wheel, which by its inertia assists in securing uniform motion of machinery by resisting sudden changes of speed.

C. Flywheel