Q-1 A motor car shaft consists of a steel tube 30 mm internal diameter and 4...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Q-1 A motor car shaft consists of a steel tube 30 mm internal diameter and 4 mm thick. The engine develops 10 kW at 2000 r.p.m. Find the maximum shear stress in the tube when the power is transmitted through a 4 : 1 gearing. Q-2 A line shaft rotating at 200 r.p.m. is to transmit 20 kW. The allowable shear stress for the material of the shaft is 42 MPa. If the shaft carries a central load of 900 N and is simply supported by bearing 3 meter apart, determine the diameter of the shaft. The maximum tensile or compressive stress is not to exceed 56 MPa. Two plates 16 mm thick are joined by a double riveted lap joint. The pitch of each row of rivets is 90 mm. The rivets are 25 mm in diameter. The permissible stresses are as follows: ot = 140 MPa; t = 110 MPa and oc = 240 MPa Find the efficiency of the joint. Q-3 Q-4 A single riveted double cover butt joint is made in 10 mm thick plates with 20 mm diameter rivets with a pitch of 60 mm. Calculate the efficiency of the joint, if ot = 100 MPa ; t = 80 MPa and oc = 160 MPa. Q-5 A double riveted double cover butt joint is made in 12 mm thick plates with 18 mm diameter rivets. Find the efficiency of the joint for a pitch of 80 mm, if ot = 115 MPa ; t = 80 MPa and oc= 160 MPa. Q-1 A motor car shaft consists of a steel tube 30 mm internal diameter and 4 mm thick. The engine develops 10 kW at 2000 r.p.m. Find the maximum shear stress in the tube when the power is transmitted through a 4 : 1 gearing. Q-2 A line shaft rotating at 200 r.p.m. is to transmit 20 kW. The allowable shear stress for the material of the shaft is 42 MPa. If the shaft carries a central load of 900 N and is simply supported by bearing 3 meter apart, determine the diameter of the shaft. The maximum tensile or compressive stress is not to exceed 56 MPa. Two plates 16 mm thick are joined by a double riveted lap joint. The pitch of each row of rivets is 90 mm. The rivets are 25 mm in diameter. The permissible stresses are as follows: ot = 140 MPa; t = 110 MPa and oc = 240 MPa Find the efficiency of the joint. Q-3 Q-4 A single riveted double cover butt joint is made in 10 mm thick plates with 20 mm diameter rivets with a pitch of 60 mm. Calculate the efficiency of the joint, if ot = 100 MPa ; t = 80 MPa and oc = 160 MPa. Q-5 A double riveted double cover butt joint is made in 12 mm thick plates with 18 mm diameter rivets. Find the efficiency of the joint for a pitch of 80 mm, if ot = 115 MPa ; t = 80 MPa and oc= 160 MPa.
Expert Answer:
Related Book For
Posted Date:
Students also viewed these mechanical engineering questions
-
Two plates 16 mm thick are joined by a double riveted lap joint. The pitch of each row of rivets is 90 mm. The rivets are 25 mm in diameter. The permissible stresses are as follows: t = 140 MPa; =...
-
Find the maximum shear stress in a 10-in circular saw if it runs idle at 7200 rev/min. The saw is 14 gauge (0.0747 in) and is used on a -in arbor. The thickness is uniform. What is the maximum...
-
Find the maximum shear stress in a 5 -in-diameter circular saw blade if it runs idle at 5000 rev/min. The saw is 14 gauge (0.0747 in) steel and is used on a 5/8-in-diameter arbor. The thickness is...
-
What is the first question to ask when redefining quality goals? What is the purpose of what I am trying to accomplish? What is the right purpose for me to be working on? What quality goals should I...
-
Suppose your organization needs to hire several computer programmers, and you are reviewing rsums you obtained from an online service. What kinds of information will you want to gather from the "work...
-
Listing 20.7, DirectorySize.java, gives a recursive method for finding a directory size. Rewrite this method without using recursion. Your program should use a queue to store the subdirectories under...
-
For a small eco-tourism company keen to use life-cycle assessment for competitive reasons, is a streamlined life-cycle assessment, life-cycle review, matrix approach or comprehensive approach the...
-
On January 1, 2014, the ledger of Werth Company contains the following liability accounts. Accounts Payable ......... $35,000 Sales Taxes Payable ........ 5,000 Unearned Service Revenue ..... 12,000...
-
How do diversity and inclusion initiatives impact organizational culture, innovation, and decision-making processes, and what strategies can organizations employ to create inclusive environments that...
-
Solve the structures in Figures P5-16 through P5-18 by using substructuring. Figure P5-16 (Substructure the truss at nodes 3 and 4) Figure P5-17 (Substructure the beam at node 3) Figure P5-18...
-
Which statement(s) is(are) true? I. A major source of income inequality in the United States stems from differences in education levels. II. Differences in the number of earners in a household is not...
-
How does the exponential smoothing method of time series differ from the moving average method?
-
You are to draw up a statement of profit or loss for the year ending 31 December 2015, and a statement of financial position as at that date from the following trial balance and details of Partido...
-
What is the difference between time series and causal forecasting methods?
-
What are the components of a time-series model? How can you determine which pattern exists over time and which model you should use?
-
What is \(p\) th-order autocorrelation? How does it help in formulating an autoregressive model of trend fitting and forecasting?
-
Congress has tried to mitigate the so-called marriage penalty, i.e., where a married couple would pay more filing jointly than their combined tax liabilities if they had each filed as a single...
-
A seasonal index may be less than one, equal to one, or greater than one. Explain what each of these values would mean.
-
Determine the average punching shear stress the circular shaft creates in the metal plate through section AC and BD. Also, what is the average bearing stress developed on the surface of the plate...
-
The beam has a rectangular cross section as shown. Determine the largest intensity w of the uniform distributed load so that the bending stress in the beam does not exceed Ï max = 10 MPa. 50 mm...
-
Determine the shear strain γ xy at corners A and B if the plastic distorts as shown by the dashed lines. 12 mm 4 mm 8 mm 3 mm IB 300 mm 12 mm D. 400 mm- 5 mm
-
Determine the displacement of point \(C\). The beam is made from A992 steel and has a moment of inertia of \(I=53.8 \mathrm{in}^{4}\). 8 kip A B -5 ft- -10 ft 5 ft-
-
Determine the slope at \(B\). The beam is made from A992 steel and has a moment of inertia of \(I=53.8 \mathrm{in}^{4}\). 8 kip A B -5 ft- 10 ft- -5 ft-
-
The beam is made of Douglas fir. Determine the slope at \(C\). 8 kN BO -1.5m 1.5m- -1.5 m- 180 mm H 120 mm
Study smarter with the SolutionInn App