Description : Viscosity of water in comparison to mercury is (A) Higher (B) Lower (C) Same (D) Higher/lower depending on temperature
Last Answer : Answer: Option A
Description : The surface tension of mercury at normal temperature is __________ that of water. (A) Same as (B) Lower than (C) Higher than (D) None of these
Last Answer : Answer: Option C
Description : The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature. (A) Air (B) Water (C) Mercury (D) Alcohol
Last Answer : (B) Water
Description : For manometer, a better liquid combination is one having (A) Higher surface tension (B) Lower surface tension (C) Surface tension is no criterion (D) High density and viscosity
Description : The mercury does not wet the glass. This is due to the property of the liquid known as (A) Cohesion (B) Adhesion (C) Viscosity (D) Surface tension
Last Answer : Answer: Option D
Description : Mercury does not wet glass. This is due to property of liquid known as (A) Adhesion (B) Cohesion (C) Surface tension (D) Viscosity
Description : A fresh egg sinks in pure water but floats in salty water. This is because (a) Saline water is denser than pure water (b) Saline water is lighter than pure water (c) The viscosity of saline water ... than that of pure water (d) The surface tension of saline water is lower than that of pure water
Last Answer : Ans:(a)
Description : The pressure of liquid at throat in a Venturimeter is __________ than that at inlet. (A) Higher (B) Lower (C) Same (D) None of these
Last Answer : Answer: Option B
Description : A fountain pen works on the principle of (1) Flow of liquids from higher to lower potential (2) Capillary action (3) Bernoulli's principle (4) Viscosity of liquids
Last Answer : (2) Capillary action Explanation: A fountain pen is a nib pen that, unlike its predecessor the dip pen, contains an internal reservoir of water-based liquid ink. The pen draws ink from the ... to flow in narrow spaces without the assistance of, and in opposition to external forces like gravity.
Description : Higher viscosity of lubricating oil usually signifies (A) Lower Reid vapour pressure (B) Higher acid number (C) Higher flash point and fire point (D) Lower flash point and fire point
Last Answer : (C) Higher flash point and fire point
Description : Paraffin base crude oil as compared to asphalt base crude gives (A) Higher yield of straight run gasoline (B) Higher octane number gasoline (C) Lower viscosity index lube oil (D) Poorer yield of lube oil
Last Answer : (A) Higher yield of straight run gasoline
Description : A fountain pen works on the principle of (1) flow of liquids from higher to lower potential (2) capillary action (3) Bernoulli’s principle (4) Viscosity of liquids
Last Answer : capillary action
Description : Safety aside, for which of the following reasons is alcohol used in preference to mercury in a minimum thermometer? w) Alcohol has a higher boiling point x) Alcohol has a lower freezing point y) Alcohol contracts more uniformly z) Alcohol can be dyed for visibility
Last Answer : ANSWER: X -- ALCOHOL HAS A LOWER FREEZING POINT
Description : A thick liquid like syrup has a __________ viscosity than a light liquid like water. (A) Lesser (B) Greater (C) Same (D) None of these
Description : Which one of the following statements is correct ? (a) Dynamic viscosity is the property of a fluid which is not in motion (b) Surface energy is a fluid property giving rise to the phenomenon ... results from the action of very high pressure (d) Real fluids have lower viscosity than ideal fluids
Last Answer : (d) Real fluids have lower viscosity than ideal fluids
Description : The fluid property, due to which, mercury does not wet the glass is (A) Surface tension (B) Viscosity (C) Cohesion (D) Adhesion
Last Answer : (A) Surface tension
Description : Spherical shape of mercury droplets is due to its (A) High viscosity (B) Low surface tension (C) High density (D) High surface tension
Last Answer : Option D
Description : If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be (A) Higher than the surface of liquid (B) The same as the surface of liquid (C) Lower than the surface of liquid (D) Unpredictable
Description : The factor of safety for (A) Steel and concrete are same (B) Steel is lower than that for concrete (C) Steel is higher than that for concrete (D) None of the above
Description : When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. (A) Always lower than (B) Always higher than (C) Same as (D) Dependent on the system; can be either lower or higher than
Last Answer : (A) Always lower than
Description : Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysteresis. In such ... (B) Higher than (C) Same as (D) Either same or higher than
Last Answer : (A) Lower than
Description : Gross heating value of coal is __________ the net heating value. (A) Higher than (B) Lower than (C) Same as (D) Either (A) or (B); depends on the type of coal
Last Answer : (A) Higher than
Description : Gross heating value of coal is __________ the net heating value. (A) Higher than (B) Lower than (C) Same as (D) None of these
Description : The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. (A) Lower than (B) Higher than (C) Same as (D) Not related to
Description : The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity. (A) 0 (B) 100 (C) 50 (D) None of these
Last Answer : Option B
Description : For different concrete specimens, each hydrated tot he same degree, the permeability is (a) Higher with lower water cement ratio and higher cement content (b) Lower with lower water cement ratio ... ratio and lower cement content (d) Lower with higher water cement ratio and higher cement content
Last Answer : (b) Lower with lower water cement ratio and higher cement content
Description : As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at (A) Lower level (B) Higher level (C) Same level (D) Any of the above depending on the design
Description : The time oscillation of a floating body with increase in meatcentric height will be (A) Same (B) Higher (C) Lower (D) Lower/higher depending on weight of body
Description : The viscosity of a liquid __________ its rate of flow through a hole in a vessel. (A) Effects (B) Does not effect (C) Both A and B (D) None of these
Description : According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain. (A) Equal to (B) Directly proportional (C) Inversely proportional (D) None of these
Description : The dynamic viscosity of gases __________ with rise in temperature. (A) Remain unaffected (B) Increases (C) Decreases (D) None of these
Description : Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow. (A) Sum (B) Different (C) Product (D) Ratio
Description : A flow in which __________ force is dominating over the viscosity is called turbulent flow. (A) Elastic (B) Surface tension (C) Viscous (D) Inertia
Description : The dynamic viscosity of the liquid __________ with rise in temperature. (A) Remain unaffected (B) Increases (C) Decreases (D) None of these
Description : A centrifugal pump is required to be primed before starting if it is located (A) At higher level than water level of reservoir (B) At lower level than water level of reservoir (C) Both (a) and (b) (D) Neither (a) nor (b)
Last Answer : (A) At higher level than water level of reservoir
Description : Alcohol is more volatile than water because ______ is lower than water. (1) its boiling point (2) its density (3) its viscosity (4) its surface tension
Last Answer : (1) its boiling point Explanation: Drinking alcohol (ethanol) and a lot of other simple alcohols are more volatile than water because they are less polar. Thus, alcohol has higher vapor pres-sure and ... C is what makes it possible to distill alcohol into a much stronger solution than wine or beer.
Description : Alcohol is more volatile than water because _________ is lower than water. (1) its boiling point (2) its density (3) its viscosity (4) its surface tension
Last Answer : its boiling point
Description : Pick up the correct statement from the following: (A) The free quartz suddenly expands at a temperature lower than 600°C (B) The lime stone resists fire upto about 800°C and at higher temperature it splits into ... (C) The sand stone with silicates resist a fire in a better way (D) All the above
Description : The pH value of Puzzolanic concrete is ________________ that of ordinary concrete [ A ] lower than [ B ] much lower than [ C ] higher than [ D ] equal
Last Answer : [ B ] much lower than
Description : In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation. (A) Lower than (B) Higher than (C) Equal to (D) Either (A) or (B), depends on the mixture composition
Description : Fqra cold viscous feed, backward feed gives __________ than forward feed. (A) A higher capacity (B) A lower capacity (C) Lower economy (D) None of these
Last Answer : (A) A higher capacity
Description : In centrifugal pump operation, the cavitation can be eliminated by maintaining suction pressure __________ the vapor pressure of the liquid at the suction temperature. (A) Lower than (B) Higher than (C) Equal to (D) None of these
Last Answer : (B) Higher than
Description : Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. (A) Higher (B) Much higher (C) Lower (D) Much lower
Last Answer : (D) Much lower
Description : Under-capitalization arises due to __________. A. excess of assets over the liabilities. B. excess of liabilities over the assets. C. actual capitalization is higher than the proper capitalization. D. actual capitalization is lower than the proper capitalization.
Last Answer : D. actual capitalization is lower than the proper capitalization.
Description : Pick up the incorrect statement from the following: (A) The pH value of water indicates the logarithm of reciprocal of hydrogen ion concentration in water (B) Higher value of pH ... value of pH means higher hydrogen ion contraction (D) Lower value of pH gives alkaline solution
Last Answer : (D) Lower value of pH gives alkaline solution
Description : Boiling point of a solution according to Duhring's rule is a linear function of the __________ of water. (A) Boiling point (at the same pressure) (B) Viscosity (C) Density (D) Thermal conductivity
Last Answer : (A) Boiling point (at the same pressure)
Description : . Boiling point elevation for a strong and concentrated solution is found by Duhring's rule, which states that at the same pressure, the boiling point of a solution is a linear function of the __________ of pure water. (A) Boiling point (B) Dynamic viscosity (C) Kinematic viscosity (D) Density
Last Answer : (A) Boiling point
Description : A steel ball floats on mercury because (a) mercury does not allow any metallic ball to sink in it (b) mercury is also a metal in the liquid form (c) the density of mercury is higher than that of steel (d) a steel ball can be made to float on any liquid by suitable adjustment
Last Answer : Ans:(c)