Precision Machining Technology
3rd Edition
ISBN: 9781337795302
Author: Peter, Hoffman.
Publisher: Cengage Learning,
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Chapter 2.1, Problem 8RQ
What is PPE?
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Problem 19: Determine the force in members HG, HE, and DE of the truss, and state if the
members are in tension or compression.
4 ft
K
J
I
H
G
B
C
D
E
F
-3 ft
-3 ft 3 ft 3 ft 3 ft-
1500 lb 1500 lb 1500 lb 1500 lb 1500 lb
Problem 14: Determine the reactions at the pin A, and the tension in cord. Neglect the
thickness of the beam.
F1=26kN
F2
13
12
80°
-2m
3m
Problem 22: Determine the force in members GF, FC, and CD of the bridge truss and state
if the members are in tension or compression.
F
15 ft
B
D
-40 ft
40 ft
-40 ft
40 ft-
5 k
10 k
15 k
30 ft
E
Chapter 2 Solutions
Precision Machining Technology
Ch. 2.1 - Briefly describe what you believe are the two most...Ch. 2.1 - Briefly describe what you believe are the two most...Ch. 2.1 - What should be done in the case of a personal...Ch. 2.1 - What does OSHA stand for and what is OSHA's...Ch. 2.1 - List three specific clothing items that should not...Ch. 2.1 - If someone working around machinery has long hair,...Ch. 2.1 - Never operate machinery without proper ______ in...Ch. 2.1 - What is PPE?Ch. 2.1 - What is the most common and important piece of PPE...Ch. 2.1 - What does HCS stand for?
Ch. 2.1 - What does GHS stand for?Ch. 2.1 - What is a pictogram?Ch. 2.1 - What does NFPA stand for?Ch. 2.1 - What does HMIS stand for?Ch. 2.1 - Prob. 15RQCh. 2.1 - Prob. 16RQCh. 2.1 - Class A fire extinguishers use ______ as a media...Ch. 2.1 - What class of fire extinguisher should be used on...Ch. 2.1 - What class of fire extinguisher should be used on...Ch. 2.1 - What is the purpose of lockout and tagout...Ch. 2.2 - What is the inch equivalent of 1 millimeter?Ch. 2.2 - What is the inch equivalent of 32.5 mm to the...Ch. 2.2 - Use the decimal equivalent chart on page 69 to...Ch. 2.2 - Use the decimal equivalent chart on page 69 to...Ch. 2.2 - Use the decimal equivalent chart on page 69 to...Ch. 2.2 - What does parallel mean?Ch. 2.2 - What does perpendicular mean?Ch. 2.2 - What is the radius of a 3.65-inch-diameter circle?Ch. 2.2 - What is the circumference of the circle in the...Ch. 2.2 - What are the Cartesian coordinates of the four...Ch. 2.2 - Label the hypotenuse, adjacent side, and opposite...Ch. 2.3 - Define semi-precision measurement.Ch. 2.3 - What is comparison measurement?Ch. 2.3 - List three rules to follow when or storing...Ch. 2.3 - List the parts of the combination set.Ch. 2.3 - Describe four uses of the combination set.Ch. 2.3 - What semi-precision tool is used to take angular...Ch. 2.3 - What type of square has a blade that can be tilted...Ch. 2.3 - Identify the following tools.Ch. 2.4 - List three key points in caring for precision...Ch. 2.4 - What type of fixed gage can be used to check hole...Ch. 2.4 - What type of fixed gage can be used to check a...Ch. 2.4 - How is the go member of a go/no-go ring gage set...Ch. 2.4 - What type of fixed gage can be used to check...Ch. 2.4 - A _____________ can provide a reference plane for...Ch. 2.4 - What two other tools could be used with the answer...Ch. 2.4 - ___________ is the process of attaching gage...Ch. 2.4 - What is the smallest graduation on an English...Ch. 2.4 - What is the smallest graduation on a metric...Ch. 2.4 - A micrometer uses an accurate __________ to...Ch. 2.4 - What is the smallest graduation on an inch...Ch. 2.4 - What is the smallest graduation on a metric...Ch. 2.4 - What is calibration and why is it important?Ch. 2.4 - What is a transfer-type measuring tool?Ch. 2.4 - What are the two basic types of indicator...Ch. 2.4 - Briefly describe the main difference between the...Ch. 2.4 - A sine tool uses the trigonometric function of...Ch. 2.4 - List the two most common methods for measuring...Ch. 2.4 - What are one advantage and one disadvantage of...Ch. 2.4 - A(n) ________ displays a magnified image of a part...Ch. 2.4 - What other tool can be useful for measuring very...Ch. 2.4 - What does CMM stand for?Ch. 2.5 - What are the four basic parts of a process plan?Ch. 2.5 - Briefly define quality control and explain its...Ch. 2.5 - Briefly explain the purpose of a sampling plan.Ch. 2.5 - What is the purpose of an inspection plan?Ch. 2.5 - What is the important factor to consider when...Ch. 2.5 - What does SPC stand for?Ch. 2.5 - What does an X-bar chart track?Ch. 2.5 - What does an R-chart track?Ch. 2.5 - If an X-bar chart graph is between LCL and the...Ch. 2.5 - If an X-bar chart graph falls below the LCL or...Ch. 2.6 - What is the difference between ferrous and...Ch. 2.6 - Briefly describe an alloy.Ch. 2.6 - Name three alloying elements added to steel.Ch. 2.6 - What is cast iron?Ch. 2.6 - What element is in stainless steel that makes it...Ch. 2.6 - Small particles of________ alloys are flammable.Ch. 2.6 - What are the two major benefits of titanium?Ch. 2.6 - What does AISI stand for?Ch. 2.6 - What does SAE stand for?Ch. 2.6 - What is (are) the major alloying element(s) in...Ch. 2.6 - What is (are) the major alloying element(s) in...Ch. 2.6 - What does IADS stand for?Ch. 2.6 - What is the overall purity of 1030 aluminum?Ch. 2.6 - What is (are) the major alloying element(s) of...Ch. 2.6 - What does UNS stand for?Ch. 2.7 - Briefly define the term heat treatment.Ch. 2.7 - Direct hardening can be performed on steel...Ch. 2.7 - ________ is the rapid cooling of metal during heat...Ch. 2.7 - What type of hardening operation that leaves the...Ch. 2.7 - In what two ways can the process described in the...Ch. 2.7 - What method is used to harden low-carbon steels?Ch. 2.7 - List two methods of performing the operation...Ch. 2.7 - After hardening, steel is very hard and brittle....Ch. 2.7 - Briefly define annealing.Ch. 2.7 - Prob. 10RQCh. 2.7 - A dual-chamber furnace allows the user...Ch. 2.7 - In addition to standard PPE, what specific PPE and...Ch. 2.7 - What hardness testing scale uses many different...Ch. 2.7 - What is a Brale penetrator and what hardness scale...Ch. 2.8 - Why is a routine maintenance plan important?Ch. 2.8 - What is a lubricant?Ch. 2.8 - List three methods of applying lubricants to...Ch. 2.8 - List two components of machine tools that should...Ch. 2.8 - Briefly describe a gib.Ch. 2.8 - What are the purposes of cutting fluids?Ch. 2.8 - What are the two major types of cutting fluids?Ch. 2.8 - Prob. 8RQCh. 2.8 - What two ingredients are often used as additives...Ch. 2.8 - Oils that can be combined with water are...Ch. 2.8 - What is the major benefit of cutting fluids that...Ch. 2.8 - What is the difference between synthetic and...Ch. 2.8 - A______ can be used to measure cutting fluid...Ch. 2.8 - List three methods of applying cutting fluids.Ch. 2.8 - Always review the________ before using any...Ch. 2.8 - What type of cutting fluids should never be used...
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- Problem 20: Determine the force in members BC, HC, and HG. After the truss is sectioned use a single equation of equilibrium for the calculation of each force. State if the members are in tension or compression. 5 kN 4 kN 4 kN 3 kN 2 kN B D E F 3 m -5 m- -5 m- 5 m 5 m-arrow_forwardAn experimental setup is being built to study the flow in a large water main (i.e., a large pipe). The water main is expected to convey a discharge (Qp). The experimental tube will be built at a length scale of 1/20 of the actual water main. After building the experimental setup, the pressure drop per unit length in the model tube (APm/Lm) is measured. Problem (19): Given the value of Qp [m³/s], and assuming Reynolds number similitude between the water main and experimental tube, calculate the flow rate in the model tube (Qm) in [lit/s]. = 30.015 m^3/sarrow_forwardProblem 11: The lamp has a weight of 15 lb and is supported by the six cords connected together as shown. Determine the tension in each cord and the angle 0 for equilibrium. Cord BC is horizontal. E 30° B 60° Aarrow_forward
- Problem 10: If the bucket weighs 50 lb, determine the tension developed in each of the wires. B $30° 5 E D 130°arrow_forwardProblem 3: Four-Force Equilibrium Knowing the forces in members A and C, determine the force of B and D, assuming the system is in equilibrium. A structural joint is held in equilibrium by four forces acting along different members. • Member A applies a force of 4 kN at an angle of 60° above the positive x-axis. • Member C applies a force of 2 kN horizontally to the left along the x-axis. • Member B applies an unknown force along the horizontal direction. • Member D applies an unknown force at an angle of 45° above the negative x-axis. Determine the forces in members B and D, assuming the system is in static equilibrium. 4 kN 2 kN C 45° A D 60° FB Barrow_forwardProblem 18: Determine the force in each member of the truss. State if the members are in tension or compression. 3 ft 3 ft 3 ft B D 4 ft 4 ft. 130 lb Earrow_forward
- Problem 16: Determine the force in each of the member of the truss and state if the members are in tension or compression. Set P₁ = 10 kN, P2 = 8 kN. 2 m G F E A A 1 m B 2 m 1 m P1 Darrow_forwardProblem 7: Determine the force in each cord for equilibrium of the 60-kg bucket. D E 4 m 4 m B 3 m- 3 m- 3 m.arrow_forwardProblem 15: Determine the reactions at the pin A and the tension in cord BC. Set F = 40 kN. Neglect the thickness of the beam. 26 kN F 13 12 -2 m 4 m B 4arrow_forward
- Problem 21: Determine the force in members EF, CF, and BC and state if the members are in tension or compression. 1.5 m 4 kN E D 8 kN B 2 m 2 marrow_forwardProblem 8: If the cords suspend the two buckets in the equilibrium position, determine the weight of bucket B. Bucket A has a weight of 60 lb. E 65° C 20° 40° F B 20° Aarrow_forwardProblem 4: Four Force Equilibrium The members of a truss are connected at joint O. Determine the magnitudes of F₁ and F2 for equilibrium, assuming 0 = 60°. 5 kN 7 kN 70° 30°arrow_forward
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