Correct
Incorrect
✅ The correct answer is option A.
Engineering MCQs
In induction hardening, the depth of hardening is controlled by controlling the voltage.
Correct
Incorrect
✅ The correct answer is option A.
During cooling and dehumidification, dry bulb temperature
remains constant
increases
decreases
✅ The correct answer is option C.
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
P + Q
P – Q
P / Q
Q / P
✅ The correct answer is option B.
The grade of grinding wheel depends upon
hardness of the material being ground
speed of wheel and work
condition of grinding machine
all of these
✅ The correct answer is option D.
When an open coiled helical compression spring is subjected to an axial compressive load, the stress induced in the wire is
tensile stress
compressive stress
shear stress
bending stress
✅ The correct answer is option C.
The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is
μ W cosec α (r1 + r2)
μ W cosec α (r1 + r2)
μ W cosec α
μ W cosec α
✅ The correct answer is option A.
Which of the following statement is correct about hot machining?
It requires less power than machining metals at room temperature.
The rate of tool wear is lower.
It is used for machining high strength and high temperature resistant materials.
all of the above
✅ The correct answer is option D.
The temperature rise, between the condenser outlet and expansion valve in ammonia vapour compression system, should be as low as possible.
Yes
No
✅ The correct answer is option A.
The instantaneous centres which vary with the configuration of mechanism, are called
permanent instantaneous centres
fixed instantaneous centres
neither fixed nor permanent instantaneous centres
none of the above
✅ The correct answer is option C.