ECAT Pre General Science Online Test With Answers

image
image
image

ECAT Pre General Science Online Test

Sr. # Questions Answers Choice
1 Work done is maximum when angle between force and displacement is: 0<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 90<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> 180<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> None of these
2 Work has the dimension as that of: Torque Angular momentum Linear momentum Power
3 If force and displacement are in opposite direction, the work done is taken as: Positive work Negative work Zero work Infinite work
4 The work performed on an object does not depend on: Force applied Angle at which force is inclined to the displacement Initial velocity of the object Displacement
5 Work is always done on a body when: A force acts on it It moves through certain distance None of A or B is correct Both A and B is correct
6 Work is a: Scalar quantity Vector quantity Base quantity None of these
7 The time rate of change of displacement is called: Time Acceleration Speed Velocity
8 One newton is a force that produces an acceleration of 0.5 m/sec2in a body of mass: 2 kg 3 kg 4 kg 8 kg
9 Force is a: Scalar quantity Base quantity Derived quantity None of these
10 An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is: 100 m/sec 140 m/sec 1960 m/sec 196 m/sec
11 Bodies which falls freely under gravity provides good example of motion under: Uniform acceleration Non-uniform acceleration Uniform velocity None of these
12
Swimming becomes possible because of______law of motion:		 First Second Third None of these
13 A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion: First Second Third None of these
14 A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of: 0.5 m/sec2 5 m/sec2 1.5 m/sec2 9.8 m/sec2
15 Slope of velocity-time graph represents: Acceleration Speed Torque Work
16 In the above figures, tell which set is graphs shows that a body is moving uniform velocity: (i) and (ii) (ii) and (iii) (i) and (iii) (ii) and (iv)
17 If the velocity time graph is a straight line parallel to time-axis, then it means that: The body is moving with uniform velocity The body is moving with uniform acceleration The body is at rest None of above
18 The magnitude of the force producing an acceleration of 10 m/sec2 in a body of mass 500 grams is: 3 N 4 N 5 N 6 N
19 A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be: 10 m/sec2 20 m/sec2 30 m/sec2 Zero
20 A body of mass 5 kg is acted upon by a total change n momentum will be: 10 NS 100 NS 140 NS 200 NS
21 When brakes are applied to a fast moving car, the passengers will be thrown: Forward Backward Downward None of these
22 Which one of the following is dimensionless. Acceleration Velocity Density Angle
23 The dimension of linear inertia is: MLT<sup>2</sup> ML<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span><span style="font-size: 10.5pt; line-height: 107%; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">T<sup>-2</sup></span> ML<span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°T</span><span style="font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">°</span> MLT<sup>-1</sup>
24 A ball is dropped from a height of 4.2 meters. To what height will take it rise if there is no loss of KE after rebounding? 4.2 m 8.4 m 12.6 m none of these
25 A body moving with an acceleration of 5 m/sec2started with velocity of 10 m/sec. What will be the distance traversed in 10 seconds? 150 m 250 m 350 m 400 m
26 The shortest distance between two points directed from its initial point to final point is called: Velocity Displacement Speed Distance
27 Ethanol (alcohol) as a type of: Electric fuel Bio fuel Nuclear fuel None of these
28 Root out of the conventional source of energy: Energy from biomass Hydroelectric energy Geothermal energy None of these
29 Biomass includes: Crop residue Natural vegetation Animal dung All of these
30 The consumption of energy by a 1000 watt heter in half an hour is: 5 Kwh 0.5 Kwh 2.5 Kwh 3.2 Kwh
Download This Set

Is this page helpful?

×