results in a mismatching of the top and bottom parts of a casting
results in general enlargement of the casting
occurs near the ingates as rough lumps on the surface of a casting
occurs as sand patches
✅ The correct answer is option C.
Engineering MCQs
Which of the following statement is incorrect about duralumin?
It is prone to age hardening
It can be forged
It has good machining properties
It is lighter than pur
✅ The correct answer is option D.
Break even point is the point where
fixed and variable cost lines intersect
fixed and total cost lines intersect
variable and total cost lines intersect
sales revenue and tota
✅ The correct answer is option D.
A diesel engine has compression ratio from
6 to 10
10 to 15
15 to 25
25 to 40
✅ The correct answer is option C.
A petrol engine, during suction stroke draws
air only
petrol only
a mixture of petrol and air
✅ The correct answer is option C.
The Wahl’s stress factor (K) for springs is given by (where )
✅ The correct answer is option D.
Internal or external threads of different pitches can be produced by
pantograph milling machine
profiling machine
planetary milling machine
piano-miller
✅ The correct answer is option C.
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)
K.ρ
K/ρ
ρ/K
K.ρ
✅ The correct answer is option B.
A lap joint is always in __________ shear.
single
double
✅ The correct answer is option A.
The equation of free vibrations of a system is , Its natural frequency is
3 Hz
3π Hz
6 Hz
6π Hz
✅ The correct answer is option A.