Mechanical Engineering

Question: According to Pascal’s law, the intensity of pressure at any point in a fluid at rest is the same in all directions. [A]. Agree [B]. Disagree Answer: Option A Explanation: No answer description available for this question.

Question: Falling drops of water become spheres due to the property of [A]. surface tension of water [B]. compressibility of water [C]. capillarity of water [D]. viscosity of water Answer: Option A Explanation: No answer description available for this question.

Question: In the manufacturing of lead shots, the property of surface tension is utilised. [A]. Agree [B]. Disagree Answer: Option A Explanation: No answer description available for this question.

Question: A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) [A]. [B]. [C]. [D]. Answer: Option C Explanation: No answer description…

Question: A glass tube of smaller diameter is used while performing an experiment for the capillary rise of water because [A]. it is easier to see through the glass tube [B]. glass tube is cheaper than a metallic tube [C]. it is not possible to conduct this experiment with any other tube [D]. all of…

Question: Kinematic viscosity is the product of dynamic viscosity and the density of the liquid. [A]. Yes [B]. No Answer: Option B Explanation: No answer description available for this question.

Question: A vessel of 4 m3 contains an oil which weighs 30 kN. The specific weight of the oil is [A]. 4.5 kN/m3 [B]. 6 kN/m3 [C]. 7.5 kN/m3 [D]. 10 kN/m3 Answer: Option C Explanation: No answer description available for this question.

Question: Euler’s number is the ratio of __________ force to pressure force. [A]. inertia [B]. gravity [C]. viscous Answer: Option A Explanation: No answer description available for this question.

Question: Froude’s number is the ratio of inertia force to [A]. pressure force [B]. elastic force [C]. gravity force [D]. surface tension force Answer: Option C Explanation: No answer description available for this question.

Question: A point, in a compressible flow where the velocity of fluid is zero, is called [A]. critical point [B]. vena contracta [C]. stagnation point [D]. none of these Answer: Option C Explanation: No answer description available for this question.