Question

The scale of a steel meter ruler is calibrated at 250 C. In order that error...

The scale of a steel meter ruler is calibrated at 250 C. In order that error of 1 mm to be +/- 5x10-5 mm calculate the temperature range that this ruler could be used?

Coefficient of leaner expansion of steel 1.2 x 10-5K-1

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
At 22°C, a rod is exactly 24.49 cm long on a steel ruler. Both the rod...
At 22°C, a rod is exactly 24.49 cm long on a steel ruler. Both the rod and the ruler are placed in an oven at 230°C, where the rod now measures 24.60 cm on the same ruler. What is the coefficient of thermal expansion for the material of which the rod is made? The linear expansion coefficient of steel is 11 x 10-6 1/C°.
At 22°C, a rod is exactly 23.45 cm long on a steel ruler. Both the rod...
At 22°C, a rod is exactly 23.45 cm long on a steel ruler. Both the rod and the ruler are placed in an oven at 240°C, where the rod now measures 23.70 cm on the same ruler. What is the coefficient of thermal expansion for the material of which the rod is made? The linear expansion coefficient of steel is 11 x 10-6 1/C°.
A ruler is accurate when the temperature is 26.7 °C. When the temperature drops to -12.3...
A ruler is accurate when the temperature is 26.7 °C. When the temperature drops to -12.3 °C, the ruler shrinks and no longer measures distances accurately. However, the ruler can be made to read correctly if a force of magnitude 1.72 x 103 N is applied to each end so as to stretch it back to its original length. The ruler has a cross-sectional area of 1.39 x 10-5 m2, and it is made from a material whose coefficient of...
A steel rod 30.0 m long, installed when the temperature was 10°C, is in a bridge...
A steel rod 30.0 m long, installed when the temperature was 10°C, is in a bridge that heats up to 40oC on a hot summer day. Steel's coefficient of linear expansion is 1.2 × 10-5 K-1. The bridge is built so the rod has an expansion space of 5 cm. Is this enough space? What is the increase in the length of the rod, in mm?
A solid steel bar 100 mm diameter is firmly encased by an 8 mm brass liner...
A solid steel bar 100 mm diameter is firmly encased by an 8 mm brass liner over its entire 750 mm length. The component is securely fixed at both ends and the temperature of the system is evenly increased by 100ºC. Calculate EACH of the following: The difference between the induced stresses; The final length of the bar if it is free to expand. Note:   Modulus of elasticity for steel = 206 GN/m2             Modulus of elasticity for brass =...
A steel tool (with the thermophysical properties of plain carbon steel) is at a uniform temperature...
A steel tool (with the thermophysical properties of plain carbon steel) is at a uniform temperature of 250°C after being used in a cutting operation. It then cools in air at 15°C with a convection heat transfer coefficient of 45 Wm–2K–1. The tool approximates a cylinder 15 mm in diameter and 120 mm in length. One end of the cylinder is insulated. (i) How long will it take for the cylinder to cool to 50°C? [10] (ii) Under the same...
Experimental data: Length L0 of the cold rod (measured with a meter stick): 600 +/- 1...
Experimental data: Length L0 of the cold rod (measured with a meter stick): 600 +/- 1 mm Cross-sectional diameter d of the rod (measured with a caliper): 6.1 +/- 0.1 mm The change in length ∆L after the rod reached its final temperature: 1.04 +/- 0.01 mm The initial temperature of the rod (the room temperature): 22 +/- 1 ̊C The final temperature of the rod shown by the thermometer: 93 +/- 1 ̊C Linear thermal expansion coefficient calculation: 1)...
Problem: Utilize the Tabulation Error Function Value Table from your Examination Booklet. --Given Values-- Concentration of...
Problem: Utilize the Tabulation Error Function Value Table from your Examination Booklet. --Given Values-- Concentration of Nitrogen (wt%): = 0.38 Position in mm = 8.5 Diffusion Coefficient for Nitrogen in Iron at 700℃ = 9.70E-10 Nitrogen in Iron Heat Treatment Time (hours): = 13 Carburizing Time (hrs): = 10 Steel Alloy Case Depth (mm): = 3 Steel Alloy New Case Depth (mm) = 8.8 Activation Energy kJ/mol: = 107 Temperature for Problem 3 (Celsius): = 821 - = Data for...
1) A room is 10.0 m by 7.5 m by 2.7 m is filled with air...
1) A room is 10.0 m by 7.5 m by 2.7 m is filled with air at 22oC and 1 atm. The average molar mass of air is 28.8 g/mol. Find the number of moles of air to fill the room and the weight of the air in kg. 2) If it takes exactly 4 min. to completely melt a 2.0 kg block of ice at 0.0° C, how much power is needed? (For water Lf = 334 kJ/kg and...
pr.1 The Observations were made from station P to signal at station Q. The distance between...
pr.1 The Observations were made from station P to signal at station Q. The distance between Pand Qis 12.5 km and diameter of signal at station Q was 20 cm. The sun rays make an angle of 50° with line PQ. Calculate the phase correction if observations were made:on the bright portion,on the bright line.. ,A base line was measured with a steel tape of designated length 30 m at 20°C ata pull of 100 N. The measured length of...