On drying, wood
A.expands
B.shrinks
C.changes colour
Category: Engineeeing Mcqs
In case of V-belts
A.Belts should touch the bottom of groove in pulley
B.Belts should not touch the bottom of groove in pulley
C.Grooves in pulley are generally wider than the belt
D.The efficiency of transmission is less
E.Tension in belt remains constant throughout
The locus of instantaneous centre of a moving rigid body
A.Involute
B.Cycloid
C.Epicycloid
D.Centrode
E.Straight line
Heating elements of electrical heaters are made of
A.Nichrome
B.Nicheloy
C.Invar
D.Tungsten
E.Phosphor bronze
In a field you see ten workers harvesting raice with bare hands. The reapers are not unemployed. Then this is a case of
A.Under production
B.Lack of skill
C.Labour intensive production
D.Bonded labour system
E.Disguised unemployment
Which of the following structure is least hard?
A.Martensite
B.Troosite
C.Pearlite
D.Sorbite
Lead poisoning occurs when the lead content in water is
A.300 – 500 ppm
B.30 – 50 ppm
C.10 – 15 ppm
D.3 – 5 ppm
E.0.3 – 0.5 ppm
If all the variables of a steam are in-dependent of time it is said to be in
A.Steady flow
B.Unsteady flow
C.Uniform flow
D.Closed flow
E.Constant flow
The minimum change in the measured variable which produces an effective response of the instrument is known as
A.Resolution sensitivity
B.Accuracy
C.Hysteresis
D.Precision
E.Deviation
Machinability of metal depends on
A.Hardness
B.Hardness and tensile strength
C.Brittleness
D.Brittleness and toughness
E.None of the above
