steam pressure exceeds the working pressure
water level in the boiler becomes too low
both (a) and (b)
none of the above
✅ The correct answer is option C.
Engineering MCQs
A flow is called super-sonic if the
velocity of flow is very high
discharge is difficult to measure
Mach number is between 1and 6
none of these
✅ The correct answer is option C.
A triple riveted butt joint with double straps of unequal width is to be designed for a boiler shell. The pitch of the rivets in the outer row is double the pitch in the inner row and zig-zag riveting is proposed. Which of the following statement is correct?
There are four rivets per pitch length, all in double shear
There are four rivets per pitch length, out of which two are in single shear and two are in double shear
There are five rivets per pitch length, all in double shear
There are five rivets
✅ The correct answer is option D.
The minimum parking brake force is generally __________ of gross vehicle mass (GVM).
5%
10%
15%
20%
✅ The correct answer is option D.
By higher octane number of spark ignition fuel, it is meant that the fuel has
higher heating value
higher flash point
lower volatility
longer ignition delay
✅ The correct answer is option D.
Stage efficiency is also known as
diagram efficiency
nozzle efficiency
gross efficiency
none of these
✅ The correct answer is option C.
Lathe bed is made of
mild steel
alloy steel
pig iron
chilled cast iron
✅ The correct answer is option D.
Mechanical efficiency of a centrifugal pump is the ratio of
energy available at the impeller to the energy supplied to the pump by the prime mover
actual workdone by the pump to the energy supplied to the pump by the prime mover
energy supplied to the pump to the energy available at the impeller
manometric head to the
✅ The correct answer is option A.
The longitudinal joint in boilers is used to get the required
length of boiler
diameter of boiler
length and diameter of boiler
efficiency of boiler
✅ The correct answer is option B.
Euler’s formula for a mild steel column is not valid if the slenderness ratio is
60
90
100
120
✅ The correct answer is option A.