mass of the steam discharged increases
entropy and specific volume of the steam increases
exit velocity of steam reduces
all of these
✅ The correct answer is option D.
Mechanical Engineering MCQs
The piston compression rings are made of
cast iron
steel
aluminium
bronze
✅ The correct answer is option A.
The moment of inertia of a rectangular section 3cm wide and 4cm deep about X-X axis is
9cm4
12cm4
16cm4
20cm4
✅ The correct answer is option C.
The absolute zero pressure can be attained at a temperature of
0°C
273°C
273 K
none of these
✅ The correct answer is option D.
Willian’s law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)
I.P.
(I.P.)2
✅ The correct answer is option C.
The cam follower generally used in air-craft engines is
knife edge follower
flat faced follower
spherical faced follower
roller follower
✅ The correct answer is option D.
The refrigerant used in small-tonnage commercial machines (hermetically sealed units) is
ammonia
carbon dioxide
sulphur dioxide
R-12
✅ The correct answer is option C.
If the carbon content in the bituminous coal is 78 to 81%, it is said to be coking bituminous coal.
Agree
Disagree
✅ The correct answer is option B.
The length of the divergent cone in a venturimeter is __________ that of the convergent cone.
equal to
double
three to four times
five to six times
✅ The correct answer is option C.