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21
Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
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Answer: Option D
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22
An example of unsteady non uniform flow is the flow of liquid under pressure through a
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Answer: Option B
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23
Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is
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Answer: Option B
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24
Which of the following if present in iron ore, enhances its value?
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Answer: Option C
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25
Annealing ofwhite cast iron produces __________ iron.
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Answer: Option C
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26
__________ of grey cast iron produces white cast iron.
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Answer: Option B
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27
Which of the following pairs is not correctly matched?
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Answer: Option A
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28
Speisses is a mixture of the following:
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Answer: Option A
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29
LVDT used for displacement measurement is a/an __________ transducer.
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Answer: Option A
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30
The escape velocity of a body on earth which is independent of its mass is about __________ km/second.
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Answer: Option C
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