2 Stroke Engines MCQs : This section focuses on the "2 Stroke Engines" in Automobile Engineering. These Multiple Choice Questions (MCQs) should be practiced to improve the Automobile Engineering skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
A two-stroke also known as ?
Explanation: A two-stroke also known as two-cycle engine.
Two-stroke engines often have a high power-to-weight ratio.
C. Can be true or false
D. Can not say
Explanation: True, Two-stroke engines often have a high power-to-weight ratio.
The first commercial two-stroke engine designed in?
Explanation: The first commercial two-stroke engine involving in-cylinder compression is attributed to Scottish engineer Dugald Clerk, who patented his design in 1881.
Two-stroke diesel engines, are found mostly in?
A. large industrial and marine applications
B. trucks and heavy machinery
C. Both A and B
D. None of the above
Explanation: Two-stroke diesel engines, are found mostly in large industrial and marine applications, as well as some trucks and heavy machinery.
______________ is the most common type of fuel/air mixture transfer used on modern two-stroke engines
A. Cross-flow scavenging
B. Loop scavenging
C. Rotary inlet valve
D. Reed inlet valve
Explanation: Loop scavenging is the most common type of fuel/air mixture transfer used on modern two-stroke engines.
How can a two-stroke engine identify by?
A. Piston size
B. Cooling system
C. Piston size
D. Lubrication system
Explanation: The two-stroke engine is identified by the absence of valves. Almost all two-stroke engines do not have valves. This makes the two-stroke engine easy to produce and maintain.
Which of the following is not an advantage of a two-stroke engine?
A. Not valves
B. Lighter flywheel
C. More uniform torque
D. No lubrication system
Explanation: The two-stroke engines do not have valves. Due to which it makes them easy to manufacture. Also, the two-stroke engine has a lighter flywheel. That is the reason the two-stroke engine produces the more uniform torque.
Which of the following is the most perfect method of scavenging?
A. Reverse flow scavenging
B. Uniform scavenging
C. Loop scavenging
D. Cross scavenging
Explanation: Uniform scavenging is the most perfect method of scavenging. In uniform scavenging, both fresh charge and burnt gases move in the same direction.
Which method of scavenging is used in two-wheelers without deflector type piston?
A. Cross scavenging
B. Reverse flow scavenging
C. Uniform scavenging
D. Loop scavenging
Explanation: Cross scavenging is used in two-wheelers without deflector type piston. In this, the fresh charge is directed upward, and then down to force out the exhaust gases through the oppositely positioned exhaust port.
Compared to four-stroke engines, two-stroke engines have fewer moving parts.
C. Can be yes or no
D. Can not say
Explanation: Yes, Compared to four-stroke engines, two-stroke engines have fewer moving parts.