1000+ Fluid Mechanics Questions and Answers Pdf - 3

Question: 11

In a normal shock in a gas, the

(A) upstream flow is subsonic

(B) downstream flow is sonic

(C) upstream flow is supersonic

(D) both downstream flow and upstream flow are supersonic

Question: 12

Which of the following is used for very accurate measurement of flow of gas at low velocity?

(A) hot wire anemometer

(B) segmental orifice meter

(C) rotameter

(D) pitot tube

Question: 13

Which of the following is not concerned with the fluid particle interaction?

(A) weber number

(B) galileo number

(C) froude co-efficient

(D) drag coefficient

Question: 14

Mercury is an ideal barometric fluid mainly due to its

(A) high density

(B) very low vapor pressure

(C) low compressibility

(D) low capillary action

Question: 15

Which of the following fans are suitable for handling dust laden and high temperature gases?

(A) radial

(B) propeller

(C) forward curved

(D) backward curved