Machines and Graphics MCQs | Machines and Graphics Multiple Choice Questions with Answers

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
61 The dimensions of centrifugal force are
A M1 L2 T2
B M'L'T1
C M'L'T2
D M'L-'T2

Answer: M'L'T2
62 A quantity measured in the C.G.S system of units has dimensions M"2L3 T3/2. What numerical factor would be required to convert the quantity to SI units ?
A 1
B 100
C 1/100
D 1/10000

Answer: 1
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
63 In SI units, the units of force and energy are respectively
A Newton and watt
B Dyne and erg
C Newton and joule
D kg-wt and joule

Answer: Newton and joule
64 The ratio of unit of force in gravitational system to that in absolute system is
A 1
B g
C 1/g
D none of the above

Answer: g
65 A quantity whose dimensions are M2L2 T3 could be the product of
A Force And Pressure
B Mass And Power
C Energy And Velocity
D Force And Velocity

Answer: Mass And Power
66 Joule is the unit of
A Power
B Impulse
C Work
D Momentum

Answer: Impulse
67 The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by
A 1:2
B 1:1
C 2:1
D 3:1

Answer: 3:1
68 The maximum displacement of a particle executing S.H.M. corresponds to
A zero potential energy and maximum kinetic energy
B zero kinetic energy and maximum potential energy
C maximum kinetic energy and maxi-mum potential energy
D minimum kinetic energy and minimum potential energy

Answer: zero kinetic energy and maximum potential energy
69 The time period of a simple pendulum depends on i) mass of suspended particle ii) length of the pendulum iii) acceleration due to gravity The correct answer is
A only (i)
B both (ii) and (iii)
C both (i) and (iii)
D all are correct

Answer: both (ii) and (iii)
70 The angle of projection at which the horizontal range and maximum height of a projectile are equal to
A 45°
B tan-1 (2)
C tan-' (4)
D tan"1 (1/4)

Answer: tan-' (4)
71 A stone is thrown up a slope of inclination 60° to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection ?
A 15°
B 30°
C 45°
D 75°

Answer: 15°
72 A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is
A n rpm
B n/2 rpm
C n/4 rpm
D 2n rpm

Answer: n/2 rpm
73 A flywheel of moment of inertia 20 kg-m" is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian persecond is
A 1/2
B 3/2
C 2
D 3

Answer: 3/2
74 Select the correct statement
A The body centrode rolls on the space centrode
B The space centrode rolls on the body centrode
C Both body and space centrodes may role on each other
D The body centrode never touches space centrode

Answer: The body centrode rolls on the space centrode
75 Instantaneous center is at infinity when the angular velocity is
A constant
B zero
C maximum
D minimum

Answer: zero
76 A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ? i) 1.0 in from the wall ii) 1.732 m from the wall iii) 1.0 m above the floor iv) 1.732 m above the floor The correct answer is
A (i) and (iii)
B (i) and (iv)
C (ii) and (iii)
D (ii) and (iv)

Answer: (ii) and (iv)
77 The angle of projection at which the horizontal range and maximum height of a projectile are equal to
A 36°
B 45°
C 56°
D 76°

Answer: 76°
78 The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is
A 98 m
B 490 m
C 980 m
D 1960 m

Answer: 980 m
79 A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about
A 1/4
B 1/3
C 1/2
D 1/5

Answer: 1/4
80 If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is
A zero
B maximum
C minimum
D unpredictable

Answer: maximum
Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series