μ W R
μ W R
μ W R
μ W R
✅ The correct answer is option B.
Engineering MCQs
A compressor mostly used for supercharging of I.C. engines is
radial flow compressor
axial flow compressor
roots blower
reciprocating compress
✅ The correct answer is option A.
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction.
The upper and bottom rolls rotate in the same direction whereas the middle roll rotate in opposite direction.
The bottom and middle roll rotate in the same direction.
any one of the above
✅ The correct answer is option B.
The calorific value of petrol is about
36.5 – 38.5 MJ/kg
39.4 – 42.5 MJ/kg
42.7 – 43.5 MJ/kg
45.5 – 47 MJ/kg
✅ The correct answer is option C.
The length of a second’s pendulum is
94.9cm
99.4cm
100cm
101cm
✅ The correct answer is option B.
A torsional system with discs of moment of inertia I1 and I2 as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is ‘G’. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to
G.I2
G2.I2
I2/G
I2/G2
✅ The correct answer is option B.
The ultimate analysis of coal consists of the determination of the percentage of
carbon
hydrogen and nitrogen
sulphur and ash
all of these
✅ The correct answer is option D.
Dew point temperature corresponds to the saturation temperature of vapour at its partial pressure.
TRUE
FALSE
✅ The correct answer is option A.
A casting defect which occurs due to improper venting of sand is known as
cold shuts
blow holes
shift
swell
✅ The correct answer is option B.