TRUE
FALSE
✅ The correct answer is option A.
Engineering MCQs
Coefficient of contraction is the ratio of
actual velocity of jet at vena contracta to the theoretical velocity
loss of head in the orifice to the head of water available at the exit of the orifice
actual discharge through an orifice to the theoretical discharge
area of jet at vena contracta to the area of orifice
✅ The correct answer is option D.
In break even analysis, total cost consists of
fixed cost + sales revenue
variable cost + sales revenue
fixed cost + variable cost
fixed cost + variable cost + profit
✅ The correct answer is option C.
The most probable velocity of the gas molecules is given by
✅ The correct answer is option B.
The average operating pressure of Benson boiler is
100 bar
150 bar
200 bar
250 bar
✅ The correct answer is option D.
An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.
Yes
No
✅ The correct answer is option A.
Which of the following statement is correct for gears?
The addendum is less than dedendum
The pitch circle diameter is equal to the product of module and number of teeth
The pitch circle is always greater than the base circle
all of the above
✅ The correct answer is option D.
In a die casting method, the molten metal is forced into mould under high pressure.
Correct
Incorrect
✅ The correct answer is option A.
The partial balancing of reciprocating parts in locomotives produces
hammer blow
swaying couple
variation in tractive force along the line of stroke
all of the above
✅ The correct answer is option D.
The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the
rotor to static enthalpy rise in the stator
stator to static enthalpy rise in the rotor
rotor to static enthalpy rise in the stage
stator to static enthalpy rise in the stage
✅ The correct answer is option C.