1-Aug
1-Apr
2
4
✅ The correct answer is option A.
Mechanical Engineering MCQs
A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is
2.89 kN
8.29 kN
9.28 kN
28.9 kN
✅ The correct answer is option B.
The negative plates of a lead acid battery has
lead peroxide (PbO2)
spongy lead (Pb)
lead sulphate (PbSO4)
sulphuric acid (H2SO4)
✅ The correct answer is option B.
Fouling factor is used
in heat exchanger design as a safety factor
in case of Newtonian fluids
when a liquid exchanges heat with a gas
none of the above
✅ The correct answer is option A.
The distance between the centre of a rivet hole to the nearest edge of plate, is called
margin
pitch
back pitch
diagonal pitch
✅ The correct answer is option A.
In a four stroke cycle engine, the sequence of operations is
suction, compression, expansion and exhaust
suction, expansion, compression and exhaust
expansion, compression, suction and exhaust
compression, expansion
✅ The correct answer is option A.
In a high pressure compressor, the delivery pressure is
1 to 5 bar
5 to 8 bar
8 to 10 bar
10 to 15 bar
✅ The correct answer is option C.
The process which improves the machinability of steels, but lowers the hardness and tensile strength is
normalising
full annealing
process annealing
spheroidising
✅ The correct answer is option D.
When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as
die casting method
slush casting method
permanent mould casting method
centrifugal casting me
✅ The correct answer is option C.
The purpose of a thermostat in an engine cooling system is to
prevent the coolant from boiling
allow the engine to warm up quickly
indicate the coolant temperature
pressurise the system
✅ The correct answer is option B.