A. No
B. Compressive
C. Tensile
D. Thermal
✅ The correct answer is option A.
Engineering MCQs
__________ are not emitted by radioactive substances.
A. Α-rays
B. Β-rays
C. Protons
D. Positrons
✅ The correct answer is option C.
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be
A. Parabolic
B. Hyperbolic
C. Straight line
D. None of these
✅ The correct answer is option A.
In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is
A. Less
B. More
C. Equal
D. Unpredictable
✅ The correct answer is option A.
In practice, the compression ratio of compression-ignition (CI) engine ranges from
A. 15 to 25
B. 5 to 10
C. 40 to 55
D. 60 to 70
✅ The correct answer is option A.
The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
A. Refrigerant cooling
B. Evaporator
C. Condenser
D. Throttling
✅ The correct answer is option C.
Annealing ofwhite cast iron produces __________ iron.
A. Grey
B. Nodular
C. Malleable
D. Spheroidal
✅ The correct answer is option C.
About __________ ton of coke is required in a cupola to produce one ton of casting.
A. 0.03
B. 0.3
C. 0.8
D. 1.5
✅ The correct answer is option B.
Which of the following is not a dielectric material?
A. Cotton, silk and paper
B. Asbestos, glass, porcelain and mica
C. Rubber and polymeric resins
D. All of the above
✅ The correct answer is option C.
Presence of sulphur in the fuel fired in a furnace
A. Contributes to its heating value
B. Helps in electrostatic precipitation of ash from flue gases
C. Corrodes ducts & air preheater, if the flue gas temperature is low
D. All of the above
✅ The correct answer is option D.