Description : Is it possible for a coefficient of variation of a set of data to be zero Explain.?
Last Answer : Yes it is. If all the observations have the same non-zero valuethen the coefficient of variation will be zero.
Description : Is it possible for a coefficient of variation to be negative Explain.?
Last Answer : Of course it is! If the mean of a set of data is negative, thenthe coefficient of variation will be negative.
Description : What is a coefficient of variation?
Last Answer : What is the answer ?
Description : Coefficient of variation calculated by
Last Answer : Ans. CV = (SD/Mean) x 100
Description : When V-belt drive is used a safety device, its performance is affected by a) Variation in belt tention b) Increase in coefficient of friction as belt slippage increase c) Both (a) and (b) d) None of the above
Last Answer : c) Both (a) and (b)
Description : A Statistical measure of the Degree to which two variables move together A. Coefficient of variation B. Variance C. Covariance D . Certainty equivalent
Last Answer : Answer: C
Description : A measure of risk per unit of expected return A.standard deviation B . Coefficient of variation C.Correlation coefficient D. Beta
Last Answer : Answer: B
Description : What variation statement can be drawn from the given data set?
Last Answer : = ",n,"!"; % Print the result! next n; % On to the next factorial up. END
Description : What does a correlation coefficient of r -0.01 imply about the graph of a data set?
Last Answer : It suggests that there is very little evidence of a linear relationship between the variables.
Description : What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only? (A) Zero (B) First (C) Second (D) Third
Last Answer : (B) First
Description : At the point of boundary layer separation in fluid flow, the (A) Shear stress is maximum (B) Velocity gradient is flat (C) Density variation is maximum (D) Shear stress is zero
Last Answer : Option A
Description : At the magnetic equator: a. Dip is zero b. Variation is zero c. Deviation is zero d. The isogonal is an agonic line
Last Answer : a. Dip is zero
Description : An aircraft wishes to track a VOR along the 274 radial. If variation is 10° W, what should be set on the OBS? a. 274 b. 264 c. 094 d. 084
Last Answer : c. 094
Description : Gestures is a sub skill of (a) Introduction skill (b) Questioning skill (c) Skill of stimulus variation (d) Set Induction
Last Answer : (c) Skill of stimulus variation
Description : For perfectly elastic bodies, the value of the coefficient of restitution is a.1 b.0.372 c.0.5 d.Zero e.Any value between 0 and 1
Last Answer : a. 1
Description : For perfectly elastic bodies the value of the coefficient of restitution is a.0.707 b.0.5 c.1 d.0.25 e.Zero
Last Answer : a. 0.707
Description : When temperature rises, resistance of negative temperature coefficient thermistor A. increases B. decreases C. zero D. infinity
Last Answer : decreases
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 : What is meant by critical damping coefficient? * 1 point (A) Frequency of damped free vibrations is less than zero (B). The motion is a periodic in nature (C). Both a. and b. (D). None of the above
Last Answer : (C). Both a. and b.
Description : What is meant by critical damping coefficient? A Frequency of damped free vibrations is less than zero B The motion is aperiodic in nature C Both a. and b. D None of the above
Last Answer : B The motion is aperiodic in nature
Description : What is meant by critical damping coefficient? B ( A )Frequency of damped free vibrations is less than zero ( B )The motion is aperiodic in nature ( C )Both a. and b. (D)None of the above
Last Answer : ( B )The motion is aperiodic in nature
Description : What is meant by critical damping coefficient? a. Frequency of damped free vibrations is less than zero b. The motion is aperiodic in nature c. Both a. and b. d. None of the above
Last Answer : b. The motion is aperiodic in nature
Description : Skempton's pore pressure coefficient B for saturated soil is (A) 1 (B) Zero (C) Between 0 and 1 (D) Greater than 1
Last Answer : Answer: Option A
Description : Tractive coefficient of a Crawler truck in loose soil is (a) Less than that of rubber tyre tractors (b) More than that of rubber tyre tractors (c) Same as that of rubber tyre tractors (d) Nearly zero
Last Answer : (d) Nearly zero
Description : What will be the reflection coefficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ? (a) Zero (b) Unity (c) Infinity (d) None of the above
Last Answer : (a) Zero
Description : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these
Last Answer : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these
Last Answer : For a particular material, the Hall coefficient was found to be zero. The material is metal.
Description : Variation of biphase that is used for encoding SMPTE time code data and for recording on video tapes
Last Answer : Biphase – M
Description : Which of the following provides the best description of an entity type? (A) A specific concrete object with a defined set of processes (e.g. Jatin with diabetes) (B) A value given to a ... template for a group of things with the same set of characteristics that may exist in the real world
Last Answer : Answer: D
Description : H2S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H2S ... by, y = 5x + 0.001 is (A) 2.0 (B) 1.56 (C) 1.0
Last Answer : (A) 2.0
Description : Calculate coefficient of viscous damper, if the system is critically damped. Consider the following data: 1. Mass of spring mass damper system = 350 kg 2. Static deflection = 2 x 10 -3 m 3. Natural frequency of the system = 60 rad/sec ... /m B. 80 x 10 3 N-s/m C. 42 x 10 3 N-s/m D. None of the above
Last Answer : C. 42 x 10 3 N-s/m
Description : Calculate coefficient of viscous damper, if the system is critically damped. Consider the following data: 1. Mass of spring mass damper system = 350 kg 2. Static deflection = 2 x 10 -3 m 3. Natural frequency of the system = 60 rad/sec ... /m b. 80 x 10 3 N-s/m c. 42 x 10 3 N-s/m d. None of the above
Last Answer : c. 42 x 10 3 N-s/m
Description : Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 1000 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06
Last Answer : b) 0.04
Description : Calculate damping ratio from the following data: mass = 200Kg ω = 20rad/s damping coefficient = 800 N/m/s a) 0.03 b) 0.04 c) 0.05 d) 0.06
Last Answer : a) 0.03
Description : Calculate critical damping coefficient in N/m/s from the following data: mass = 100Kg ω = 40rad/s a) 25,132 b) 26,132 c) 27,132 d) 28,132
Last Answer : a) 25,132
Description : Calculate critical damping coefficient in Ns/m from the following data. mass = 200Kg ω = 20rad/sa) 25,132 b) 26,132 c) 27,132 d) Not possible
Last Answer : d) Not possible
Description : method requires the following data pertaining annual flood series (i) Mean value (ii) Standard deviation (iii) Length of record (iv) Coefficient of skew The correct answer is (A) (i) and (ii) (B) (i),(i) and (iii) (C) (i), (ii) and (iv) (D) (i), (ii), (iii) and (iv)
Last Answer : Answer: Option B
Description : Using the data from 16, calculate the correlation coefficient. a. r = 0.490 b. r = 0.985 c. r = 0.971 d. r = 0.240
Last Answer : b. r = 0.985