Description : Strength of concrete with passage of time (A) Increases (B) Decreases (C) Fluctuates (D) Remains constant
Last Answer : A
Description : The value of Poisson's ratio always remains (A) Greater than one (B) Less than one (C) Equal to one (D) None of these
Last Answer : (B) Less than one
Description : In `beta-` decay `n//p` ratio` :` a)May inrease or decrease b) Remains constant c)Decreases d)Increases
Last Answer : In `beta-` decay `n//p` ratio` :` a)May inrease or decrease b) Remains constant c)Decreases ... B. may increase or decrease C. increases D. decreases
Description : In `alpha-` decay , `n//p` ratio `:` a)May inrease or decrease b) Remains constant c)Decreases d)Increases
Last Answer : In `alpha-` decay , `n//p` ratio `:` a)May inrease or decrease b) Remains constant c) ... off decrease B. remains constant C. decreases D. increases
Description : When humidity ratio of air ____ air is said to be dehumidified. A. increases B. decreases C. remains constant D. none of the mentioned
Last Answer : ANSWER : B
Description : Coefficient of consolidation for clays normally (A) Decreases with increase in liquid limit (B) Increases with increase in liquid limit (C) First increases and then decreases with increase in liquid limit (D) Remains constant at all liquid limits
Last Answer : (A) Decreases with increase in liquid limit
Description : Absolute humidity in air (A) Decreases at higher altitudes (B) Increases at higher altitudes (C) Remains constant at all altitudes (D) None of these
Last Answer : Answer: Option A
Description : The velocity of the liquid flowing through the divergent portion of a Venturimeter (A) Remains constant (B) Increases (C) Decreases (D) Depends upon mass of liquid
Last Answer : Answer: Option C
Description : The pressure of the liquid flowing through the divergent portion of a Venturimeter (A) Remains constant (B) Increases (C) Decreases (D) Depends upon mass of liquid
Description : According to I.S. : 456, the number of grades of concrete mixes, is (A) 3 (B) 4 (C) 5 (D) 7
Last Answer : (D) 7
Description : As per IS:456-1978, the concrete mixes are designated into (a) 4 grades (b) 5 grades (c) 6 grades (d) 7 grades
Last Answer : (d) 7 grades
Description : The Vee-Bee test is suitable for concrete mixes of low and very low workabilities (a) True (b) False (c) Not known (d) All the above
Last Answer : (a) True
Description : A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson's ratio is 0.25, the change in the volume of the bar is: (A) 1.125 cm3 (B) 2.125 cm3 (C) 3.125 cm3 (D) 4.125 cm
Last Answer : (C) 3.125 cm
Description : The ratio of lateral strain to axial strain of a homogeneous material, is known (A) Yield ratio (B) Hooke's ratio (C) Poisson's ratio (D) Plastic ratio
Last Answer : (C) Poisson's ratio
Description : An open-ended cylinder of radius and thickness is subjected to internal pressure . The Young's modulus for the material is and Poisson's ratio is . The longitudinal strain is (A) Zero (B) pr/TE (C) pr/2TE (D) None of these
Last Answer : (A) Zero
Description : For a given material Young's modulus is 200 GN/m2 and modulus of rigidity is 80 GN/m2 . The value of Poisson's ratio is (A) 0.15 (B) 0.20 (C) 0.25 (D) 0.30
Last Answer : (C) 0.25
Description : The degree of the B-spline with varying knot vectors a.Increases with knot vectors b.Decreases with knot vectors c.Remains constant d.none of the above
Last Answer : a.Increases with knot vectors
Description : In sensible cooling process the relative humidity: A. decreases B. increases C. remains constant D. none of the above
Description : As the temperature of ice rises, the ice melts and its density _____. A. Decreases B. Remains constant C. Increases D. Increases upto 10 °C
Last Answer : ANSWER: C
Description : Choose the correct statement. (a) Electronegativity increases down a group (b) Electronegativity decreases down a group (c) Electronegativity decreases from left to right along a period (d) Electronegativity changes along a group, but remains constant along a period
Last Answer : Ans:(b)
Description : When two gases are mixed, the entroру (a) Remains constant (b) Decreases (c) Increases (d) Becomes zero
Last Answer : Ans:(c)
Description : What happens to atmospheric pressure with increase in altitude? (1) It remains constant (2) It decreases (3) It increases (4) It constantly fluctuates
Last Answer : (2) It decreases Explanation: In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the mass of air above the measurement point. Low- ... increases, there is less overlying atmospheric mass, so that pressure decreases with increasing elevation.
Description : When water freezes its density – (1) Decreases (2) Becomes Zero (3) Remains constant (4) Increases
Last Answer : (1) Decreases Explanation: Water at ordinary temperatures contracts and in-creases in density as it is cooled, like most substances. But at about 4°C it reaches a maximum density and then decreases in density as it approaches the freezing point. This is referred to as anomalous property of water.
Description : At boiling point of liquids, its – (1) Temperature increases (2) Atmospheric pressure increases (3) Temperature remains constant (4) Vapour pressure decreases
Last Answer : (3) Temperature remains constant Explanation: An interesting property of matter is that its temperature remains constant during a phase change, assuming its surrounding pressure is constant. A liquid changes into gaseous state at a constant temperature called its boiling point.
Description : If the temperature of a piece increases suddenly, the relative humidity– (1) increases (2) decreases (3) remains constant (4) fluctuates
Last Answer : (2) decreases Explanation: Relative humidity is the ratio of the partial pressure of water vapour in a airwater mixture to the saturated vapour pressure of water at a specific temperature.
Description : If the temperature of a place increases suddenly, the relative humidity – (1) Increases (2) Decreases (3) Remains constant (4) Fluctuates
Last Answer : (2) Decreases Explanation: Relative humidity is the ratio of the partial pressure of water vapor in an airwater mixture to the saturated vapor pressure of water at a prescribed ... of the system decreases because the saturated vapor pressure of water increases with increasing temperature.
Description : When a detergent is added to pure water, its surface tension – (1) increases (2) decreases (3) remains constant (4) becomes infinite
Last Answer : (2) decreases Explanation: When Soaps and detergents are added to water, they weaken the strength of the skin on the water's surface due to surface tension by interfering with hydrogen bonding ... of the soap or detergent is also attracted to the water, thereby decreasing the surface tension.
Description : When the voltage remains constant, and the resistance increases in a series circuit, current flow _____________. A. decreases B. remains the same C. increases D. increases by the square
Last Answer : Answer: A
Description : When the voltage remains constant and the resistance is increased in a series circuit, the flow of current _____________. A. increases by the square of the original value B. increases C. remains the same D. decreases
Last Answer : Answer: D
Description : The disintegration rate of a radioactive element (A) Progressively increases (B) Progressively decreases (C) Remains constant throughout (D) May increase or decrease depending on the material
Last Answer : (B) Progressively decreases
Description : With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge (A) Increases (B) Decreases (C) Remains constant (D) Increases linearly
Last Answer : (A) Increases
Description : The inlet pressure in a constant rate filtration (A) Increases continuously (B) Decreases gradually (C) Remains constant (D) None of these
Last Answer : (A) Increases continuously
Description : With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature). (A) Increases (B) Remains unchanged (C) Decreases (D) Decreases linearly
Description : As depth increases, pressure in a fluid A. increases B. decreases C. remains constant D. varies
Last Answer : increases
Description : As distance increases, value of gravitational field strength A. also increases B. decreases C. remains constant D. may increase or decrease
Last Answer : decreases
Description : By accelerating the magnet inside the coil, the current in it A. increases B. decreases C. remains constant D. reverses
Description : By increasing the current, the drift velocity A. decreases B. increases C. remains constant D. becomes zero
Last Answer : remains constant
Description : In an oil-lubricated journal bearing, coefficient of friction between the journal and the bearing. [IES-1995] (a) Remains constant at all speeds. (b) is minimum at zero speed and increases ... speed. (d) becomes minimum at an optimum speed and then increases with further increase in speed.
Last Answer : (d) becomes minimum at an optimum speed and then increases with further increase in speed.
Description : As the ball falls towards the ground, its velocity A. increases B. decreases C. remains constant D. becomes zero
Description : Which statement is correct for muscle contraction? (a) Length of H-zone decreases. (b) Length of A-band remains constant. (c) Length of I-band increases. (d) Length of two Z-line increases.
Last Answer : (b) Length of A-band remains constant.
Description : With increase in the schedule number of a pipe of a particular nominal size, the (A) Wall thickness also increases (B) I.D. of the pipe decreases (C) O.D. of the pipe remains constant (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : With increasing flow rate, the hydraulic efficiency of a centrifugal pump (A) Monotonically decreases (B) Decreases and then increases (C) Remains constant (D) Increases and then decreases
Last Answer : (A) Monotonically decreases
Description : If helium is introduced in a reactor containing O2 , SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 ( ... 's principle). (A) Decreases (B) Increases (C) Remains unaltered (D) Changes unpredictably
Last Answer : (A) Decreases
Description : Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature. (A) Decreases (B) Increases (C) Remains constant
Last Answer : (B) Increases
Description : The activity co-efficient of the solute in a dilute solution (A) Decreases with the increase of concentration of the solute (B) Increases with the increase of concentration of the solute (C) Remains constant (D) Is unity at infinite dilution
Last Answer : (C) Remains constant
Description : During sensible cooling of air, its wet bulb temperature (A) Decreases but dew point remains constant (B) Increases but dew point remains constant (C) Increases & the dew point decreases (D) Decreases & the dew point increases
Last Answer : (B) Increases but dew point remains constant
Description : When gas changes to liquid through the process of condensation, the temperature A] Increases. B] Decreases C] Remains constant. D] None of the mentioned
Last Answer : C] Remains constant.
Description : An ideal gas is compressed in a cylinder so well insulated that there is essentially no heat transfer. The temperature of gas a. Remains constant b. increases c. decreases d. is basically zero