ECAT Physics Online Test With Answers

ECAT Physics Online Test

Sr. # Questions Answers Choice
1 When a body is performing S.H.M., its acceleration is inversely proportional to the displacement directly proportional to the applied force directly proportional to the amplitude directly proportional to the displacement but in opposite direction
2 For a body executing S. H. M, its momentum remains constant potential energy remains constant kinetic energy remains constant total energy remains constant
3 The maximum displacement of a body on either side of its equilibrium position is called frequency amplitude displacement time period
4 The number of vibrating body at any instant from its equilibrium position is called displacement frequency amplitude time period
5 The time required to complete on vibration is called frequency total time time period velocity
6 One complete round trip of the body about its mean position is called displacement vibration a complete motion an acceleration
7 The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called rotatory motion motion under gravity angular motion simple harmonic motion
8 The vibratory or oscillatory motion of a body is translatory motion back and forth motion about its mean position free all motion circular motion
9 The force which opposes the applied force producing the displacement in the spring is called restoring force periodic force centripetal force resistive force
10 The restoring force always directed towards the extreme position mean position both of them none of them
11 When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to applied force momentum restoring force none of them
12 Example of vibratory motion is mass suspended from a spring a bob of simple pendulum mass attached to a spring placed all of them
13 When an oscillatory motion repeats itself, then this type of motion is called vibratory motion constant motion fixed motion periodic motion
14 When a body moves to and fro motion, this type of motion is called translatory motion circular motion oscillatory motion all of them
15 The internal pressure of the blood is less than the external atmospheric pressure greater than the external atmospheric pressure equal to the external atmosphericpressure none of them
16 Under normal circumstances, the volume of blood is sufficient to keep the vessels flatted for all times inflated for all times inflated for small times none of them
17 Blood vessels can be stretch like rubber, therefore they are rigid hard very thick not rigid
18 A high concentration of red blood cells increases its viscosity from 3 - 5 times that of mercury 5 - 8 times that of mercury 3 - 5 times that of water 5 - 8 times that of water
19 The density of blood is nearly equal to that of mercury sodium water honey
20 Blood is an Compressible fluid incompressible fluid hard none of them
21 A device used to measure the speed of liquid flow is known as barometer speedometer sphygmomanometer venture-meter
22 If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term P 1/2 fv<sup>2</sup> pgh none of them
23 Where the streamlines are very far apart from each other, the pressure will be low zero high all of them
24 Where the streamlines are very close to each other, the pressure will be low zero high all of them
25 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be low zero high all of them
26 The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the orifices efflux fluid none of them
27 In deriving the Bernoulli's equation, we assume that the fluid is incompressible no viscous flows in a steady manner all of them
28 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid speed height none of them both of them
29 The pressure will change in the pipe, as the fluid moves through that pipe of varying cross-section height none of them both of them
30 The mass of fluid passing through any cross-section per unit time is called electric flux magnetic flux mass flux none of them
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