“Dry ice” is
Question: “Dry ice” is
[A].
moisture free ice
solid helium
solid carbon dioxide
none of these
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
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A composite flat wall of a furnace is made of two materials ‘A’ and ‘B’. The thermal conductivity of ‘A’ is twice of that of material ‘B’, while the thickness of layer of ‘A’ is half that of B. If the temperature at the two sides of the wall are 400 and 1200°K, then the temperature drop (in °K) across the layer of material ‘A’ is
Question: A composite flat wall of a furnace is made of two materials ‘A’ and ‘B’. The thermal conductivity of ‘A’ is twice of that of material ‘B’, while the thickness of layer of ‘A’ is half that of B. If the temperature at the two sides of the wall are 400 and 1200°K, then the temperature drop (in °K) across the layer of material ‘A’ is
[A].125 [B].
133 [C].
150 [D].
160 Answer: Option D
Explanation:
No answer description available for this question.
Percentage of nitrogen in blast furnace gas may be around
Question: Percentage of nitrogen in blast furnace gas may be around
[A].5 [B].
25 [C].
55 [D].
80 Answer: Option C
Explanation:
No answer description available for this question.
Haemoglobin is a/an
Question: Haemoglobin is a/an
[A].amino acid [B].
biological catalyst [C].
protein [D].
enezyme Answer: Option C
Explanation:
No answer description available for this question.
In case of a centrifugal pump, the theoretical head developed is dependent on the __________ the impeller.
Question: In case of a centrifugal pump, the theoretical head developed is dependent on the __________ the impeller.
[A].speed of [B].
diameter of [C].
fluid velocity leaving [D].
all (a), (b) and (c) Answer: Option D
Explanation:
No answer description available for this question.
__________ remains constant during the adiabatic cooling of moist air.
Question: __________ remains constant during the adiabatic cooling of moist air.
[A].Wet bulb temperature [B].
Dry bulb temperature [C].
Relative humidity [D].
Specific humidity Answer: Option A
Explanation:
No answer description available for this question.
Cold chiesel’s hammers are made of
Question: Cold chiesel’s hammers are made of
[A].high speed steel [B].
high carbon steel [C].
forged steel [D].
mild steel Answer: Option B
Explanation:
No answer description available for this question.