A. Heat rejection is lower
B. Expansion & compression are isentropic
C. Maximum temperature is higher
D. Combustion is at constant volume
✅ The correct answer is option A.
Engineering MCQs
Largest application of laser welding is in __________ welding.
A. Microspot
B. Under water
C. Precious metals
D. Heavy structure
✅ The correct answer is option A.
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.
A. Casting
B. Pattern
C. Draft
D. Distoration
✅ The correct answer is option C.
Wood is a/an __________ material.
A. Amorphous
B. Cellular
C. Homogeneous
D. Grannular
✅ The correct answer is option B.
At the point of boundary layer separation in fluid flow, the
A. Shear stress is maximum
B. Velocity gradient is flat
C. Density variation is maximum
D. Shear stress is zero
✅ The correct answer is option A.
When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively
A. Decreases & increases
B. Increases & increases
C. Increases & decreases
D. Decreases & decreases
✅ The correct answer is option A.
Fibre reinforced plastic (FRP) are
A. Made of glass fibre and thermoplastic resins
B. Anisotropic
C. Made of thermosetting resin and glass fibre
D. Both B and C
✅ The correct answer is option D.
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).
A. 10000
B. 1000
C. 100
D. 10
✅ The correct answer is option A.
Principal alloying element in Elinvar (used for making hair springs for watches) is
A. Copper
B. Aluminium
C. Nickel
D. Zinc
✅ The correct answer is option C.
According to thermodynamic Farenhite scale, the fundamental interval between ice point to steam point is
A. 180°
B. 212°
C. 32°
D. 273°
✅ The correct answer is option A.