Why do engineers place tolerances on dimensions?
Engineers place tolerance on dimensions to allow variances in an acceptable range in order to make a product function properly. The amount of tolerance depends on the degree of variations in a particular object.
Why are tolerances used in engineering?
Tolerance is the acceptable range for a physical dimension, which is determined by the product designer based on form, fit and function of a part. Tolerances are pivotal in the manufacturing process because they will determine how well a part will fit in the final piece and how reliable the final product will be.
What is tolerance in engineering drawing?
Engineering tolerance is the permissible limit or limits of variation in: a physical dimension; a measured value or physical property of a material, manufactured object, system, or service; in mechanical engineering the space between a bolt and a nut or a hole, etc.
What is tolerance chart?
Values in Process Tolerance Charts typically represent the BEST attainable values. They also represent single-feature relationships. We refer to these intra-feature process planning.
What are some examples of tolerance?
Tolerance is being patient, understanding and accepting of anything different. An example of tolerance is Muslims, Christians and Athiests being friends.
How do you find the maximum and minimum tolerance?
Take the nominal value and multiply it by 1 + your tolerance, which is (1+0.1). Then take the nominal value and multiply it by 1 – tolerance, or (1-0.1). The highest possible value is 517 K. The lowest possible value is 423 K.
How do you read resistance color codes?
Common Resistor Color Code Questions: Hold the resistor with these grouped bands to your left. Always read resistors from left to right. – Resistors never start with a metallic band on the left. If you have a resistor with a gold or silver band on one end, you have a 5% or 10% tolerance resistor.
What is the maximum and minimum resistance which can be made?
Hence, the minimum resistance which can be made using five resistors each of 1/5 ohms is 1/25 ohms.
What is the maximum resistance which can be made?
Hence, the maximum resistance which can be made using five resistors each of 1/5 ohm is 1 ohm.
How do you find the minimum resistance?
While equivalent resistance increases when resistors are joined in series e.g., Req = R₁ + R₂ + R₃ + …. + Rn. it Means, we can get minimum resistance when all the given resistors will join in parallel. And we can get maximum resistance when all the resistors will join in series .
What is the minimum resistance which can be made?
What is the maximum and minimum possible resistance can be obtained by combining 3 ohm resistors?
Maximum and minimum resistance is 9 and 1 ohm respectively. All resistor are of same resistance , R = 3 ohm. We know, equivalent resistance is maximum when all resistance are in series. Therefore, maximum resistance , Also, equivalent resistance is minimum when all resistance are in parallel.
What is the minimum resistance which can be made using 4 resistors each of 4 ohm?
Answer. Answer: 5 ohm is the minimum resistance we get.
What is the minimum resistance you can obtain by combining five resistors of 10 Ohm each?
So, the minimum resistance which can be made using five resistors is 0.04 ohms.
What is the minimum resistance that can be made using four resistors each of 20 ohm?
5 ohm is the minimum resistance we get.
What is the maximum resistance which can be made using 5 resistors each of 1.5 ohm?
Solution : Maximum resistance is obtained in series combination. Thus, Rs=5(15Ω)=1Ω.
How many 176 resistors are there?
∴four resistors of 176 Ω are required to draw the given amount of current.
How many resistors do I need for 88 Ohm?
Answer. Therefore, 4 resistors of 88Ω ( in parallel) are required to carry 10 A on a 220 V line.
How are three resistors connected?
Answer: To obtain a combined resistance of 9 ohms, three resistors each of resistance 6 ohm should be connected in a parallel circuit and one in series. In a parallel circuit, the equivalent resistance of all the resistors connected is equal to the reciprocal value of the sum of the individual resistances.
When we say the resistors are in parallel write the expression for the resistors in parallel how many 176 Ω resistors in parallel are required to carry 5 A on a 220 V line?
Answer. Now for x number of resistors of resistance 176 Ω, the equivalent resistance of the resistors connected in parallel is 44 Ω. Therefore, 4 resistors of 176 Ω are required to draw the given amount of current.
How many 330 Ω resistors in parallel are required to carry 20 a on a 220 V line?
30 , resistors of 330 ohm resistance in parallel are required to carry 20 ampere and 220 volt.
When we say the resistors are in parallel?
Resistors are in parallel if their terminals are connected to the same two nodes. The equivalent overall resistance is smaller than the smallest parallel resistor.
How many 176 ohm resistors in parallel are required to carry 5 A on 220 V line?
Hence, four resistors are required.