blueprint reading

81問 • 2年前

問題一覧

A pipe with an outside diameter of 4.50" ±.05" will have an OD of _________ for the MMC

4.55

referring to the figure provided, you're asked to pull 25 finished connecting rods from the inventory with which you'll create final assemblies. In the parts bins, you should look for parts that are

solid .125 diameter shafts 1.813 inches long, with threaded ends

T- shaped, Square-bottomed, dovetailed, and V- shaped are all types of ________ in a machined part.

Slots

A simple shaft is 1 inch in diameter and 5.5 inches long. If a drafter wants to draw the part at a ______ scale, the part will be .50 inches in diameter and 2.75 inches long on paper.

1:2

One of your job responsibilities is to determine the amount of asphalt used for a supermarket parking lot. you'll estimate the quantity of asphalt based on the number of square feet of parking lot surface. To interpret a D-size drawing, you'll use

An architects scale ruler at a scale of 1" = 40'.

In the figure provided, what is the inside diameter of the crankshaft?

.250

Referring to the figure provided, you're asked to get the raw material to make the screw sleeve. You would probably look for

3/16" diameter tubing with at least 1/32" wall thickness.

change in cross-sectional dimensions over the length of a U-shaped bracket can best be shown in a space saving way by

Revolved sections

In the figure provided, how many different parts are shown on the print?

A complex gear drawing done on a drawing sheet marked M-1 has many section views showing important interior details of the gear. One of the cutting-plane lines is marked at the ends with a callout in a circular bubble that says 7 above a line and M-3 below the line. To find this detail you would

Go to sheet M-3 and look for a detail labeled 7.

A drawing contains a leader arrow pointing to a hole marked 9 x ø .125 THRU EQL SP - Ø 2.125 BC. From this description you know that

The holes are 40° apart and go all the way through the part.

To expose the interior features of a part, an imaginary cutting plane creates a

Sectional view

You're machining a "rush" part for a repair order from a scale drawing print given to you by the project engineer. As you begin to machine an end feature, you find a dimension missing. To produce the part on time, you could

Go back to the project engineer or drafter to get the true dimension.

Calculate the LMC wall thickness of a pipe and tubing with OD as 35 ±.05 and ID as 25 ±.05

4.95

A two- view tapered cone shown in the title block of a print is the

Symbol used to show which projection angle is used for displaying Orthographic Projections

A part has a dimension on a print written as 65°. Referring to the figure provided, what is the maximum angle the inspector will allow?

65.5°

In the figure provided, the overall height of the crank

Can't be determined from these views alone.

The bearing in the figure provided shows two sets of dashed lines in the left- side view that are

Representing the threaded hole into the .188 diameter.

A length of pipe will weigh the most when

Part dimensions are such that the pipe is in the MMC.

What does .75 ø - 8 holes EQL SP - Ø 2.5 BC mean?

8 holes which are .75" diameter in size and spaced 45° apart.

Plumbing is the overall combination of three systems: water supply, drainage, and

Venting

Referring to the figure provided, the unenergized condition of

Switch PB1 and contact OL is closed

Referring to the figure provided, how far below the finished floor is the top of the footing?

3'-0"

The figure provided indicates that the welder must weld a ________ - shaped joint.

Fillet

A welding symbol indicates that SAW process is required. This means it's

Flat production welding

Referring to the figure provided, the inside diameter machining marks

Will be perpendicular to the axis

A thread that's 0.5 inches in diameter with an 8 TPI is

Coarse

On hydraulic prints, drain lines are represented by

Dashed lines

Referring to the figure provided, a section view of the wall can be found

In detail B on sheet 2.0S

Pneumatic cylinders operate on the same principle as hydraulics, but are unable to

Generate the force of hydraulics

In the figure provided, to what do the identifiers 400 cfm refer?

Airflow of 400 cubic feet per minute

A print has a revision of several dimensions as per ECO 27514, which refers to

An engineering change order, #27514

A site plan indicates water lines as

A solid line with the letter W spaced periodically in the line

When a print needs more information, a table called a _________ shows details about doors, windows, plumbing and electrical sizes, and model numbers.

Schedule

On a site plan for a building layout, surveyors have established an elevation mark on a print that reads REF 596.656' BM. In this case, "BM" most likely means

A reference to a surveyors benchmark

The most common thread type used today for nuts, bolts, and screws is the

Unified national

A ________ is a triangle-shaped weld used when joining two pieces at an angle.

Fillet weld

The symbol for compressed air in a heating equipment is indicated as

A solid line with the letter A spaced periodically in the line

The specifications 3 × 0.5-7 UNC-2B RH means that

The thread is coarse and class 2

In a mechanical drawing, the symbol for the thread fails to mention if the thread is right-handed or left-handed. What would a mechanical engineer deduce from this?

The thread is right-handed

Pressurized reservoirs that provide fluid to hydraulic equipment circuits are called

Accumulators

When a print needs more information, a table called a _________ shows details about doors, windows, plumbing and electrical sizes, and model numbers.

Schedule

The most common thread type used for most fastener applications are ________ threads.

Class 2

A ________ is a roof support designed to span the distance between walls and support the weight of roof components.

Truss

Referring to the figure provided, the wall material shown in section is

Concrete

Prints for electronically controlled hydraulic systems are divided by function. One print is for the fluid-control system, and a/an ________ is for the electrical wiring.

Ladder diagram

A bolt on a print is listed as a ¼-32 without any additional abbreviations. What extra abbreviations would the bolt most likely have?

UNEF-2A

In the figure provided, the equipment marked D1-10 is a

Ceiling diffuser

In the figure provided, how many convenience outlets are shown inside the room on the print?

Six

Proper conditioning of inside air is necessary for occupants health; therefore, it's crucial for the HVAC designers to design ventilation systems that ________ for every room.

Deliver a minimum number of air changes per hour

The dimension in the figure provided indicates that the length of the part

Can range from 3.995 to 4.005

A site plan states that the exact compass direction of a property line is N 45°15'50" E 129.5'. this means that the property line is

129.5 feet long

The geometric symbol in the feature control frame provided is

Line profile

A hole is at LMC when the diameter is at the

Maximum allowable tolerance

A dimension of 3.25 inches converted to millimeters is

82.6 mm

The ASME recommends the use of

Unidirectional dimensions for all drawings

The smallest fractional inch measurement in common use is

1/64

Clearance fit is a fit that's designed to

Always have a space between mating parts at any of the dimensions within acceptable tolerances

A rectangular block shows apparently square edges on a part you're supposed to machine from raw bar stock. Without any specific notation, you should

Assume the angle is supposed to be 90° and let the tolerance block determine the acceptable limits of the angle on the finished part

For two parts with extremely high negative allowance, an ________ type of fit is required.

The two 6.6 mm holes in the figure provided

Are defined as datum D

A dimension on a print is marked 25.25 ± .05mm, but the drawing tolerance block lists a standard of ± .01mm for two-place decimal dimensions. If the part is actually measured to be 25.21mm, this means that

The part is within specifications and is acceptable

Exact compass bearings would be most likely found on

Site plans for building

A line is placed under the dimension number if

The dimension isn't to scale

Runout can be defined as the

Total variation from a desired circular surface when the part is rotated one full circle around its axis

In the figure provided, which feature control frame applies a tighter tolerance to one datum than to another?

Clearance locational fits are used for parts that

Don't move and must be assembled or disassembled with precise locations

The pressure angle for modern manufacturing designs is

20°

A note on a drawing tells the machinist to "break all edges", but one of the edges has a dimension R .015. The machinist should

Assume this is an important dimension and machine this edge precisely to a .015 radius, while rounding the others with a file or sandpaper

A spur gear pinion and gear shown on a drawing have a diametral pitch of 12. The pitch radius of the pinion is 1.500 inches and the gear ratio is specified to be 1:3. On the print, you would expect the pitch diameter of the gear to be

9.00 inches

How many basic dimensions are on the print shown in the figure provided?

The three common dimensioning systems used on drawings in the United States are

Metric dimensioning, decimal-inch dimensioning, and fractional-inch dimensioning

Tolerances in the ± 0.001 range require

Accurate setup such as a high-quality milling machine or lathe and machining practices

In the figure provided, which feature control frame identifies a feature as another datum ?

In the left side view in the figure provided, the dimension of the slot on the bottom

Must maintain perpendicularity with the bottom surface of the part

A metric print is marked with a dimension of 130.0 millimeters. This is the equivalent of

5.118 inches

Tolerances ranging from + .0000 to - .0004 would fall under ABEC

Class 3

What is the gear ratio if the number of teeth on the driven gear and pinion is 50 and 180 respectively?

18/5

Convert 30.283° into a degree-minute-second format.

30°16'58"

A dimension listed on a drawing as (4.743) is a

Reference dimension not to be used for inspection

In the figure provided, which feature control frame applies geometric tolerances to a surface?

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問題一覧

A pipe with an outside diameter of 4.50" ±.05" will have an OD of _________ for the MMC

4.55

referring to the figure provided, you're asked to pull 25 finished connecting rods from the inventory with which you'll create final assemblies. In the parts bins, you should look for parts that are

solid .125 diameter shafts 1.813 inches long, with threaded ends

T- shaped, Square-bottomed, dovetailed, and V- shaped are all types of ________ in a machined part.

Slots

A simple shaft is 1 inch in diameter and 5.5 inches long. If a drafter wants to draw the part at a ______ scale, the part will be .50 inches in diameter and 2.75 inches long on paper.

1:2

An architects scale ruler at a scale of 1" = 40'.

In the figure provided, what is the inside diameter of the crankshaft?

.250

Referring to the figure provided, you're asked to get the raw material to make the screw sleeve. You would probably look for

3/16" diameter tubing with at least 1/32" wall thickness.

change in cross-sectional dimensions over the length of a U-shaped bracket can best be shown in a space saving way by

Revolved sections

In the figure provided, how many different parts are shown on the print?

Go to sheet M-3 and look for a detail labeled 7.

A drawing contains a leader arrow pointing to a hole marked 9 x ø .125 THRU EQL SP - Ø 2.125 BC. From this description you know that

The holes are 40° apart and go all the way through the part.

To expose the interior features of a part, an imaginary cutting plane creates a

Sectional view

Go back to the project engineer or drafter to get the true dimension.

Calculate the LMC wall thickness of a pipe and tubing with OD as 35 ±.05 and ID as 25 ±.05

4.95

A two- view tapered cone shown in the title block of a print is the

Symbol used to show which projection angle is used for displaying Orthographic Projections

A part has a dimension on a print written as 65°. Referring to the figure provided, what is the maximum angle the inspector will allow?

65.5°

In the figure provided, the overall height of the crank

Can't be determined from these views alone.

The bearing in the figure provided shows two sets of dashed lines in the left- side view that are

Representing the threaded hole into the .188 diameter.

A length of pipe will weigh the most when

Part dimensions are such that the pipe is in the MMC.

What does .75 ø - 8 holes EQL SP - Ø 2.5 BC mean?

8 holes which are .75" diameter in size and spaced 45° apart.

Plumbing is the overall combination of three systems: water supply, drainage, and

Venting

Referring to the figure provided, the unenergized condition of

Switch PB1 and contact OL is closed

Referring to the figure provided, how far below the finished floor is the top of the footing?

3'-0"

The figure provided indicates that the welder must weld a ________ - shaped joint.

Fillet

A welding symbol indicates that SAW process is required. This means it's

Flat production welding

Referring to the figure provided, the inside diameter machining marks

Will be perpendicular to the axis

A thread that's 0.5 inches in diameter with an 8 TPI is

Coarse

On hydraulic prints, drain lines are represented by

Dashed lines

Referring to the figure provided, a section view of the wall can be found

In detail B on sheet 2.0S

Pneumatic cylinders operate on the same principle as hydraulics, but are unable to

Generate the force of hydraulics

In the figure provided, to what do the identifiers 400 cfm refer?

Airflow of 400 cubic feet per minute

A print has a revision of several dimensions as per ECO 27514, which refers to

An engineering change order, #27514

A site plan indicates water lines as

A solid line with the letter W spaced periodically in the line

When a print needs more information, a table called a _________ shows details about doors, windows, plumbing and electrical sizes, and model numbers.

Schedule

On a site plan for a building layout, surveyors have established an elevation mark on a print that reads REF 596.656' BM. In this case, "BM" most likely means

A reference to a surveyors benchmark

The most common thread type used today for nuts, bolts, and screws is the

Unified national

A ________ is a triangle-shaped weld used when joining two pieces at an angle.

Fillet weld

The symbol for compressed air in a heating equipment is indicated as

A solid line with the letter A spaced periodically in the line

The specifications 3 × 0.5-7 UNC-2B RH means that

The thread is coarse and class 2

In a mechanical drawing, the symbol for the thread fails to mention if the thread is right-handed or left-handed. What would a mechanical engineer deduce from this?

The thread is right-handed

Pressurized reservoirs that provide fluid to hydraulic equipment circuits are called

Accumulators

When a print needs more information, a table called a _________ shows details about doors, windows, plumbing and electrical sizes, and model numbers.

Schedule

The most common thread type used for most fastener applications are ________ threads.

Class 2

A ________ is a roof support designed to span the distance between walls and support the weight of roof components.

Truss

Referring to the figure provided, the wall material shown in section is

Concrete

Prints for electronically controlled hydraulic systems are divided by function. One print is for the fluid-control system, and a/an ________ is for the electrical wiring.

Ladder diagram

A bolt on a print is listed as a ¼-32 without any additional abbreviations. What extra abbreviations would the bolt most likely have?

UNEF-2A

In the figure provided, the equipment marked D1-10 is a

Ceiling diffuser

In the figure provided, how many convenience outlets are shown inside the room on the print?

Six

Proper conditioning of inside air is necessary for occupants health; therefore, it's crucial for the HVAC designers to design ventilation systems that ________ for every room.

Deliver a minimum number of air changes per hour

The dimension in the figure provided indicates that the length of the part

Can range from 3.995 to 4.005

A site plan states that the exact compass direction of a property line is N 45°15'50" E 129.5'. this means that the property line is

129.5 feet long

The geometric symbol in the feature control frame provided is

Line profile

A hole is at LMC when the diameter is at the

Maximum allowable tolerance

A dimension of 3.25 inches converted to millimeters is

82.6 mm

The ASME recommends the use of

Unidirectional dimensions for all drawings

The smallest fractional inch measurement in common use is

1/64

Clearance fit is a fit that's designed to

Always have a space between mating parts at any of the dimensions within acceptable tolerances

A rectangular block shows apparently square edges on a part you're supposed to machine from raw bar stock. Without any specific notation, you should

Assume the angle is supposed to be 90° and let the tolerance block determine the acceptable limits of the angle on the finished part

For two parts with extremely high negative allowance, an ________ type of fit is required.

The two 6.6 mm holes in the figure provided

Are defined as datum D

The part is within specifications and is acceptable

Exact compass bearings would be most likely found on

Site plans for building

A line is placed under the dimension number if

The dimension isn't to scale

Runout can be defined as the

Total variation from a desired circular surface when the part is rotated one full circle around its axis

In the figure provided, which feature control frame applies a tighter tolerance to one datum than to another?

Clearance locational fits are used for parts that

Don't move and must be assembled or disassembled with precise locations

The pressure angle for modern manufacturing designs is

20°

A note on a drawing tells the machinist to "break all edges", but one of the edges has a dimension R .015. The machinist should

Assume this is an important dimension and machine this edge precisely to a .015 radius, while rounding the others with a file or sandpaper

9.00 inches

How many basic dimensions are on the print shown in the figure provided?

The three common dimensioning systems used on drawings in the United States are

Metric dimensioning, decimal-inch dimensioning, and fractional-inch dimensioning

Tolerances in the ± 0.001 range require

Accurate setup such as a high-quality milling machine or lathe and machining practices

In the figure provided, which feature control frame identifies a feature as another datum ?

In the left side view in the figure provided, the dimension of the slot on the bottom

Must maintain perpendicularity with the bottom surface of the part

A metric print is marked with a dimension of 130.0 millimeters. This is the equivalent of

5.118 inches

Tolerances ranging from + .0000 to - .0004 would fall under ABEC

Class 3

What is the gear ratio if the number of teeth on the driven gear and pinion is 50 and 180 respectively?

18/5

Convert 30.283° into a degree-minute-second format.

30°16'58"

A dimension listed on a drawing as (4.743) is a

Reference dimension not to be used for inspection

In the figure provided, which feature control frame applies geometric tolerances to a surface?