Question Description
Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer?.

Solutions for Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.

Here you can find the meaning of Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Attempt All sub parts from each question.Railway track expansion joint: Expansion and contraction of steel and concrete structure due to seasonal heating and cooling is a common problem found in civil engineering. To combat this problem, engineers put expansion joints to absorb these changes.This problem is compounded on railway tracks. This could lead to rail buckling, known in the industry as “sun kink”, as shown below, and cause the derailment of train. When exposed to temperature variations, the rail tends to vary its length. If this tendency is freely allowed, for a temperaturevariance Δt, the rail length L will vary by ΔL. This length variance can be computed as:ΔL = αLΔtwhere α = expansion coefficient of steel= 11.5 x 10–6 °C.The coefficient of thermal expansion is defined as the fractional increase in length per unit rise in temperature. Traditional railway tracks are of standard lengths. When the tracks are laid, the lengths are joined end to end using “fishplates”—short lengths of steel plate overlapping the joint, and bolted to the ends of the rails. At each joint there must be a short gap (≈ 1/8") between the rail ends, to allow for longitudinal thermal expansion of the rails on hot days.Q. What is the value of thermal expansion coefficient of steel?a)1.15 × 10–6 °C.b)0.115 × 10–6 °Cc)11.5 × 10–6 °C.d)11.5 × 106 °CCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 11 tests.