An air vessel is provided at the summit in a syphone to
A.Regulate the flow
B.Increase discharge
C.Increase velocity
D.Avoid an interruption in the flow
E.Maintain pressure difference
Category: Engineeeing Mcqs
As a general rule if facing on the friction disc are worn down to the rivet heads
A.Rivets should be replaced
B.Rivets head should be filed
C.The friction disc should be replaced
D.The clutch should be replaced
E.The linkage should be adjusted
In order to avoid a correction for the effect of capillarity in manometers, the diameter of the tube should be
A.Less than 1 mm
B.Less than 3 mm
C.Less than 4.5 mm
D.Greater than or equal to 6 mm
E.None of the above
Lifting magnets are used as material handling devices for
A.pig iron
B.billets
C.tubes
D.all of the above
The calorific value of diesel oil is expected to be around
A.1000 kcal/kg
B.5000 kcal/kg
C.11000 kcal/kg
D.16000 kcal/kg
E.21000 kcal/kg
In the polytropic process equation pvn = constant, if the value of n is infinitely large the process is termed as
A.Constant volume
B.Constant pressure
C.Constant temperature
D.Adiabatic
E.Isothermal
Wood used for pattern making has knots. This is likely to affect
A.warping of the piece
B.machinability of pattern
C.moisture content of wood
D.all of the above
Bainiti is a fine maxture of
A.ferrite and cementite
B.cementitie and peoitite
C.pearlite and ferrite
D.austenti and ferrite
If P represents the principal n the number of interest periods and i the interest rate based on the length of one interest period the amount of simple interest during n interest periods is
A.P (1 + in)
B.P(1 + i)n
C.P i n
D.P [(1 + i)n-1]
For a closed system the correct mathematical expression for the first law of thermodynamics is
A.dU = ?dQ + dW
B.dU = dQ + dW
C.dU = dQ-dW
D.dU = Q + W
