A block of wood and a block of metal feel equally cold or equally hot when touched. Then their common temperature is
A.0?K
B.0?F
C.0?C
D.the same as that of the human body
Author: BILAL KHATTAK
The mass moment of inertia is
A.The resistance to angular acceleration
B.The mass of every element of a body multiplied by its distance from the axis
C.Any of the above
D.None of the above
Which type of pump is different from others?
A.Centrifugal pump
B.Lobe pump
C.Gear pump
D.Sliding vane pump
E.Fuel pump for diesel engine
If a parent belongs to blood group A and other to B the offsprings can inherit:
A.All of the blood groups
B.Only A and B – group
C.AB and O – group
D.AB only
Idea ws first enunciated by French forester de Liocourt in 1898 who said:
A.In selection forest, the stem numbers fell off from lower to higher dia classes in a geometric progression
B.So there was a constant ratio between numbers in successive dia classes from lowest to the highest
C.Both (a) & (b)
D.None of these
Creep in belts is due to
A.Elasticity of belt material
B.Plasticity of belt material
C.Elongation of belt due to tension
D.Differential elougation of belt due to difference in tension on two sides of a pulley
E.Plastic deformation of belt material due to constant use
Porosity of a welded joint may be caused by
A.Poor base metal
B.Low welding current
C.High welding current
D.Wrong size of electrode
E.None of the above
Heat received by earth from the sun is known as:
A.Solar radiation
B.Insolation
C.Solar heat
D.Thermal radiation
Anomie is
A.a type of deliquency
B.a serious offence
C.a value clash behaviour
D.a self-indulgence
The size of a steam engine is 200 x 250 – 300 r.p.m. In this 200 indicates
A.Horse power
B.Shaft diameter
C.Steam pressure in 1bs/sq. in.
D.Cylinder bore
E.Piston stroke
