29°
47.3°
55°
60°
✅ The correct answer is option B.
Engineering MCQs
The eye bolts are used for
transmission of power
locking devices
lifting and transporting heavy machines
absorbing shocks and v
✅ The correct answer is option C.
In a black body, all radiations are rejected.
TRUE
FALSE
✅ The correct answer is option B.
The steel produced by cementation process is known as __________ steel.
blister
crucible
✅ The correct answer is option A.
When air is to be compressed at a high pressure, then it is advantageous to use
single stage compression
multi-stage compression without intercooling
multi-stage compression with intercooling
none of these
✅ The correct answer is option C.
The tensile strength of ductile materials is __________ its compressive strength.
equal to
less than
greater than
✅ The correct answer is option C.
The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as
supercharging
auto-ignition
scavenging
detonation
✅ The correct answer is option A.
Whenever a force acts on a body and the body undergoes a displacement, then
work is said to be done
power is being transmitted
body has kinetic energy of translation
none of these
✅ The correct answer is option A.
In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about
1
1.25
2.15
5.12
✅ The correct answer is option B.
In a screw jack, the effort required to lift the load is given by(where W = Load lifted, α = Helix angle, and φ = Angle of friction.)
P = W tan (α – φ)
P = W tan (α + φ)
P = W tan (φ – α)
P = W cos (α + φ)
✅ The correct answer is option B.