A. 23
B. 23/2
C. 25/2
D. 21/3
✅ The correct answer is option B.
Engineering MCQs
Grain hardness is measured by the __________ hardness testing method.
A. Knoop
B. Rockwell F
C. Shore sceleroscope
D. Vicker’s
✅ The correct answer is option A.
Source of heat supply in a cupola is
A. Coke
B. Charcoal
C. Lumpy coal
D. Pulverised coal
✅ The correct answer is option A.
An alloy of Fe – 0.4 % C is
A. Cast iron
B. Hypo-eutectoid steel
C. Hyper-eutectoid steel
D. Eutectoid steel
✅ The correct answer is option B.
Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.
A. Wrought
B. Tool
C. Alloy
D. Plain carbon
✅ The correct answer is option D.
Boiler draught of 10 mm water column is equivalent to
A. 1 kgf/m²
B. 10 kgf/m²
C. 10 kgf/mm²
D. 1 kgf/mm²
✅ The correct answer is option B.
A jig is used while __________ a hole.
A. Boring
B. Counter boring
C. Drilling
D. Enlarging
✅ The correct answer is option C.
The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.
A. Air
B. Water
C. Mercury
D. Alcohol
✅ The correct answer is option B.
Addition of __________ to steel can not impart it high strength at elevated temperature.
A. Nickel
B. Magnesium
C. Silicon
D. Manganese
✅ The correct answer is option B.
Function of feed check valve in a boiler is to
A. Facilitate circulation of high pressure feed water
B. Check the water level in the boiler drum
C. Prevent the back flow of water
D. Regulate the water flow to boiler
✅ The correct answer is option C.