single time estimate
double time estimate
triple time estimate
none of these
✅ The correct answer is option C.
Mechanical Engineering MCQs
The heat transfer by conduction through a thick sphere is given by
✅ The correct answer is option B.
In second type of levers,
load is in between the fulcrum and effort
effort is in between the fulcrum and load
fulcrum is in between the load and effort
none of these
✅ The correct answer is option A.
In hot machining, tool is made of
tungsten carbide
brass or copper
diamond
stainless steel
✅ The correct answer is option A.
The cupola is used to manufacture
pig iron
cast iron
wrought iron
steel
✅ The correct answer is option B.
The weight per unit volume of a liquid at a standard temperature and pressure is called
specific weight
mass density
specific gravity
none of these
✅ The correct answer is option A.
The compression ratio for petrol engines is
3 to 6
5 to 8
15 to 20
20 to 30
✅ The correct answer is option B.
When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.
horizontal core
vertical core
drop core
balanced core
✅ The correct answer is option C.
The work or surface speed for cylindrical grinding varies from
5 to 10 m/min
10 to 20 m/min
20 to 30 m/min
40 to 60 m/min
✅ The correct answer is option C.
A moderator generally used in nuclear power plants is
graphite
heavy water
concrete
graphite and concrete
✅ The correct answer is option D.