2221. The air vessel, in a reciprocating pump, is a cast iron closed chamber having an opening at its base.
Agree
Disagree
✅ The correct answer is option A.
Mechanical Engineering
Prepare with the best Mechanical Engineering MCQs with answers and explanations for exams, interviews, and job tests. Our collection covers core topics such as engineering mechanics, thermodynamics, strength of materials, theory of machines, fluid mechanics, heat transfer, manufacturing processes, machine design, and power plant engineering. These Mechanical Engineering multiple-choice questions are designed for students, fresh graduates, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving ability with our updated and comprehensive Mechanical Engineering MCQs.
2222. According to Euler’s column theory, the crippling load of a column is given by p = π2 EI/Cl2. In the Euler’s formula, the value of C for a column with both ends fixed is 4.
Agree
Disagree
✅ The correct answer is option B.
2223. According to Indian standard specifications, cast iron designated by ‘FG 150’ means
white cast iron with B.H.N. 150
white cast iron with 150 MPa as minimum compressive strength
grey cast iron with B.H.N. 150
grey cast iron with 15
✅ The correct answer is option D.
2224. A-B-C analysis
is a basic technique of materials management
is meant for relative inventory control
does not depend upon the unit cost of the item but on its annual consumption
all of the above
✅ The correct answer is option D.
2225. The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.
less than
more than
✅ The correct answer is option A.
2226. Dehydration is the process of removing water vapour from the surrounding air.
TRUE
FALSE
✅ The correct answer is option A.
2227. During heating and dehumidification process, dry bulb temperature
remains constant
increases
decreases
✅ The correct answer is option B.
2228. The material commonly used for machine tool bodies is
mild steel
aluminium
brass
cast iron
✅ The correct answer is option D.
2229. The two rows of cylinders in a ‘V’ type engine are generally arranged at
45°
60°
90°
130°
✅ The correct answer is option B.
2230. The velocity corresponding to Reynold number of 2000 is called
sub-sonic velocity
super-sonic velocity
lower critical velocity
higher critical veloci
✅ The correct answer is option C.