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SSC JE 2019-20: Technical Quiz 11

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Question 1

Which one of the following expresses the total elongation of the bar of length L with the constant cross-section of A and modulus of elasticity E hanging vertically and subject to its own weight W?

Question 2

A cylinder filled with 2 kg of oxygen(γ=1.4) is heated at constant pressure from 27oC to 127oC, the heat supplied is equal to

Question 3

Sling psychrometer is used to measure____

Question 4

Match List-I with List-II and select the correct answer using the code given below the lists:
List-I
A) Heat transfer through solid
B) heat transfer from hot surface to surrounding fluid
C) Heat transfer in boling liquid
D) heat transfer from one body to another separated in space.
List-II
1) Radiation heat transfer
2) Fourier’s law of heat conduction
3) Convention heat transfer
4) Newton’s law of cooling

Question 5

A thermal electric power plant produces 5000 MW of power. If the coal releases 70 x 105 kJ/sec of energy, then what is the rate at which heat is rejected from the power plant?

Question 6

Specific gravity of vegetable oil is 0.8. What head of this will correspond to a pressure equal to that of 15m of water?

Question 7

If the bulk modulus of elasticity for , i.e , calculate the pressure required in MPa in order to reduce the volume by ?

Question 8

Fe-C alloy containing less than 0.83% carbon is called __________.

Question 9

Match List-I (SI engine Operational Mode) with List-II (A-F Ratio Supplied by the Carburetor) and select the correct answer using the code given below the lists:

Question 10

Using the exponential smoothing method of forecasting, what will be the forecast for the fourth week if the actual and Forecasted demand for the third week is 480 and 500 respectively and α = 0.2?
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