cut-off ratio
expansion ratip
clearance ratio
none of these
✅ The correct answer is option C.
Engineering MCQs
The super-heating in a refrigeration cycle
does not alter C.O.P.
increases C.O.P.
decreases C.O.P.
none of these
✅ The correct answer is option C.
Which of the following welded joint is designed for shear strength ?
Transverse fillet welded joint
Parallel fillet welded joint
Butt welded joint
all of these
✅ The correct answer is option B.
Which of the following property is essential for spring materials?
Stiffness
Ductility
Resilience
Plasticity
✅ The correct answer is option C.
The aluminium oxide abrasive is chiefly used for grinding
high speed steel
carbon steel
wrought iron
all of these
✅ The correct answer is option D.
A steel with 0.8% carbon and 100% pearlite is called
eutectoid steel
hypo-eutectoid steel
hyper-eutectoid steel
none of these
✅ The correct answer is option A.
The resilience of a bolt may be increased by
increasing its shank diameter
increasing its length
decreasing its shank diameter
decreasing its length
✅ The correct answer is option B.
The unit of Young’s modulus is same as that of stress.
TRUE
FALSE
✅ The correct answer is option A.
Which of the following iron exists at 910° C?
α-iron
β-iron
γ-iron
δ-iron
✅ The correct answer is option A.
A gas turbine used in air-craft should have low weight and small frontal area.
Correct
Incorrect
✅ The correct answer is option A.