Large scale fire on fuel gas line is normally extinguished by________________?

Question: A __________ type pressure sensing element is commonly used in aneroid barometer.
[A].

capsule

[B].

bellow

[C].

spiral tube

[D].

flat diaphragm

Answer: Option A

Explanation:

No answer description available for this question.

Question: Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
[A].

Cresylic acid

[B].

Xanthaies

[C].

Pine oil

[D].

all ‘a’ ‘b’ & ‘c’

Answer: Option B

Explanation:

No answer description available for this question.

Question: As the fluid flow rate increases, the float of the rotameter
[A].

rises in the tube.

[B].

rotates at higher speed.

[C].

rotates at lower speed.

[D].

drops down in the tube.

Answer: Option A

Explanation:

No answer description available for this question.