Are you guys looking for Mechanical Engineering MCQ Questions with Answers PDF Free Download as per Mechanical Engineering new exam pattern? You came to the right page. This may assist you to understand and check your knowledge about the Subjects. Students also can take a free test of the Multiple Choice Questions of Mechanical Engineering. Each question has four options followed by the right answer. These Mechanical Engineering MCQ Questions are selected supported by the newest exam pattern.
Q1. Heavy duty leaf and coil springs contain carbon of the following order
(A) 0.2%
(B) 0.5%
(C) 0.8%
(D) 1.0%
Answer: (D) 1.0%
Q2. A coarse grained steel
(A) Is less tough and has a greater tendency to distort during heat treatment
(B) Is more ductile and has a less tendency to distort during heat treatment
(C) Is less tough and has a less tendency to distort during heat treatment
(D) Is more ductile and has a greater tendency to distort during heat treatment
Answer: (A) Is less tough and has a greater tendency to distort during heat treatment
Q3. Which of the following alloys does not contain tin?
(A) White metal
(B) Solder admiralty
(C) Fusible metal
(D) Phosphor bronze
Answer: (A) White metal
Q4. Which of the following is added in low carbon steels to prevent them from becoming porous?
(A) Sulphur
(B) Phosphorus
(C) Manganese
(D) Silicon
Answer: (D) Silicon
Q5. Sulphur in steel
(A) Acts as deoxidiser
(B) Reduces the grain size
(C) Decreases tensile strength and hardness
(D) Lowers the toughness and transverse ductility
Answer: (D) Lowers the toughness and transverse ductility
Q6. The aluminium alloy made by melting aluminium with 2 to 10% magnesium and 1.75% copper is called
(A) Duralumin
(B) Y-alloy
(C) Magnalium
(D) Hindalium
Answer:(C) Magnalium
Q7. The tensile strength of wrought iron is maximum
(A) Along the lines of slag distribution
(B) Perpendicular to lines of slag distribution
(C) Uniform in all directions
(D) None of the above
Answer: (A) Along the lines of slag distribution
Q8. The portion of the blast furnace below its widest cross-section is called
(A) Hearth
(B) Stack
(C) Bosh
(D) Throat
Answer: (C) Bosh
Q9. Pig iron is the name given to
(A) Raw material for blast furnace
(B) Product of blast furnace made by reduction of iron ore
(C) Iron containing huge quantities of carbon
(D) Iron in molten form in the ladles
Answer: (B) Product of blast furnace made by reduction of iron ore
Q10. Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?
(A) Silicon
(B) Sulphur
(C) Manganese
(D) Phosphorus
Answer: (A) Silicon
Q11. A material is known as allotropic or polymorphic if it
(A) Has a fixed structure under all conditions
(B) Exists in several crystal forms at different temperatures
(C) Responds to heat treatment
(D) Has its atoms distributed in a random pattern
Answer: (B) Exists in several crystal forms at different temperatures
Q12. White cast iron has
(A) Carbon in the form of carbide
(B) Low tensile strength
(C) High compressive strength
(D) All of these
Answer: (D) All of these
Q13. The silicon steel is widely used for
(A) Connecting rods
(B) Cutting tools
(C) Generators and transformers in the form of laminated cores
(D) Motor car crankshafts
Answer: (C) Generators and transformers in the form of laminated cores
Q14. Pick up the wrong statement Nickel and chromium in steel help in
(A) Providing corrosion resistance
(B) Improving machining properties
(C) Providing high strength at elevated temperatures
(D) Raising the elastic limit
Answer: (B) Improving machining properties
Q15. The bond formed by transferring electrons from one atom to another is called
(A) Ionic bond
(B) Covalent bond
(C) Metallic bond
(D) None of these
Answer: (A) Ionic bond
Q16. Which of the following element results in presence of free graphite in C.I.?
(A) Carbon
(B) Sulphur
(C) Silicon
(D) Manganese
Answer:(C) Silicon
Q17. The toughness of a material __ when it is heated.
(A) Remain same
(B) Decreases
(C) Increases
(D) None of these
Answer: (B) Decreases
Q18. Brass contains
(A) 70% copper and 30% zinc
(B) 90% copper and 10% tin
(C) 85 – 92% copper and rest tin with little lead and nickel
(D) 70 – 75% copper and rest tin
Answer: (A) 70% copper and 30% zinc
Q19. The metal suitable for bearings subjected to heavy loads, is
(A) Silicon bronze
(B) White metal
(C) Monel metal
(D) Phosphor bronze
Answer: (B) White metal
Q20. Taps dies and drills contain carbon
(A) Below 0.5%
(B) Below 1%
(C) Above 1%
(D) Above 2.2%
Answer:(C) Above 1%
We hope the given Mechanical Engineering MCQ Questions with Answers will definitely yield fruitful results. Hope you got enough ideas on the MCQs on Mechanical Engineering. If you have any queries related to Mechanical Engineering MCQs Multiple Choice Questions with Answers, drop your questions below and will get back to you in no time.
- Engineering Materials Objective Questions with Answers – Set 1
- Engineering Materials Objective Questions with Answers – Set 2
- Engineering Materials Objective Questions with Answers – Set 3
- Engineering Materials Objective Questions with Answers – Set 4
- Engineering Materials Objective Questions with Answers – Set 5
- Engineering Materials Objective Questions with Answers – Set 6
- Engineering Materials Objective Questions with Answers – Set 7
- Engineering Materials Objective Questions with Answers – Set 8
- Engineering Materials Objective Questions with Answers – Set 9
- Engineering Materials Objective Questions with Answers – Set 10
- Engineering Materials Objective Questions with Answers – Set 11
- Engineering Materials Objective Questions with Answers – Set 12
- Engineering Materials Objective Questions with Answers – Set 13
- Engineering Materials Objective Questions with Answers – Set 14
- Engineering Materials Objective Questions with Answers – Set 15
- Engineering Materials Objective Questions with Answers – Set 16
- Engineering Materials Objective Questions with Answers – Set 17
- Engineering Materials Objective Questions with Answers – Set 18