Mechanical Engineering Questions Start Creating PDF
Mechanical Engineering Questions, this topic has 1867 mcqs, It takes five to ten minutes to complete this free mechanical engineering questions test. You will see 4 or 5 option of each question. You must choose / think only one option and then press on answer key for check right answer. Practice "mechanical engineering questions" MCQs and share with your friends, brothers, sisters.
mechanical engineering questions (Total Quiz: 1867)
MCQ: Which of the following formula is used to calculate oil-film thickness in hydrodynamic bearings?
- h = (c + Є cos θ)
- h =(c – Є cos θ)
- h = c (1+ Є sin θ)
- h = c (1+ Є cos θ)
D
MCQ: What does number 6 indicate in the class of wire rope 6 x 37 (18/12/6/1)?
- Diameter
- Strands
- Wires
- None of the above
B
MCQ: Lang lay ropes offer more resistance to __________
- fatigue failure
- abrasive failure
- both a. and b.
- none of the above
C
MCQ: A V-belt pulley has belt velocity 20 m/s and mass 0.7 kg per meter. If allowable tension in the belt is 600 N then what will be the power transmitting capacity of belt? (Assume μ = 0.5 & θ = 2.5 rad)
- 3.75 kW
- 3.2 kW
- 4.5 kW
- 5.23 kW
C
MCQ: A V-belt pulley transmits power to flat belt pulley. If the coefficient of friction is 0.25 then which pulley governs the design? (β = 21° & α = 0.2)
- Flat pulley
- V-belt pulley
- Both a. and b.
- None of the above
A
MCQ: Which of the following statements is/are true for V-belts?
- V-belt drives have low reduction ratio
- Due to wedging action slip is negligible in V-belts
- V-belt transmits power over long centre distances
- All of the above
B
MCQ: If pressure angle is 22° and coefficient of friction is 0.05. What is the axial force acting on the worm gear designated as 1/40/10/5, if tangential force of 1200 N acts on it?
- 1241.2 N
- 2618.4 N
- 7755.1 N
- 7847.4 N
C
MCQ: What is the shortest distance between worm gear and axes of the worm for a worm gear pair designated as 2/40/10/8?
- 50 mm
- 200 mm
- 320 mm
- 360 mm
B
MCQ: A worm gear pair has 2 starts on worm thread, 11.2 as diametral quotient, 2 as module and 38 number of teeth on worm gear. How is the gear pair designated with these specifications?
- 2/11.2/38/2*
- 11.2/2/38/2
- 2/38/2/11.2
- 2/38/11.2/2
D
MCQ: A cylindrical roller bearing is subjected to radial force of 4500 N and application factor 1.3. What is the equivalent dynamic load acting on bearing if it has 90% reliability with desired life of 10000 hrs?
- 3461.53 N
- 5000 N
- 5850 N
- Insufficient data
C
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