Applied Mechanics Mcqs Archives - Page 14 of 31 - McqsGuru.com

The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum reactions on the ground would be

September 10, 2019 BILAL KHATTAK0

A.2.4 tonnes
B.3.6 tonnes
C.4.0 tonnes
D.4.4 tonnes
E.4.8 tonnes

A body of weight 100 kg is placed on a horizontal plane. A horizontal force of 30 kg is applied and the block is just on the point of motion. The angle of friction is

September 10, 2019 BILAL KHATTAK0

A.About 16?
B.30?
C.45?
D.60?
E.None of the above

The breaking strength of a rope is 400 N. A fireman weighing 60 kg slides down the rope. The rope will break if

September 10, 2019 BILAL KHATTAK0

A.the slides with an acceleration of 15 m/s2
B.the acceleration is 3.1 m/s2
C.the acceleration is 1.2 m/s2
D.the acceleration is 7.5 m/s2

In above case the maximum height attained by the ball would be

September 8, 2019 BILAL KHATTAK0

A.100 cm
B.49 cm
C.490 cm
D.980 cm
E.1960 cm

The standard angle between the sides of a V-belt is

September 4, 2019 BILAL KHATTAK0

A.25?
B.30?
C.40?
D.45?
E.55?

The polar moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter of 6 cm will be

September 1, 2019 BILAL KHATTAK0

A.137.5 cm4
B.275 cm4
C.550 cm4
D.1100 cm4

A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be

August 30, 2019 BILAL KHATTAK0

A.3000
B.1000
C.500
D.250

A rocket is fired vertically from the ground with a resultant vertical acceleration of 10 m/sec the fuel is finished in one minute and it continues to move up. The maximum height reached will be

August 28, 2019 BILAL KHATTAK0

A.2 km
B.10 km
C.20 km
D.36 km
E.80 km

The resultant of a force acting on a body will be zero, if the body

August 26, 2019 BILAL KHATTAK0

A.Rotates
B.Does not rotate
C.Rotates with uniform acceleration
D.Rotates with uniform deceleration
E.Moves along a curved path

ML2T-2 could be the dimension of

August 24, 2019 BILAL KHATTAK0

A.viscosity
B.moment of force
C.momentum
D.mass moment of inertia

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