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Theory-of-machines Questions Set 16:

Quiz Mode

What is a mechanism with degree of freedom ≤ 0 called?

frame

structure

Indeterminate structure

constrained chain

Solution:

What type of contact is observed between the cam and follower?

Point contact

Area contact

Edge contact

Line contact

Solution:

The angular velocity (in rad/s) of a body rotating at N revolutions per minute (r.p.m.) is

πN/60

πN/120

2πN/60

πN/180

Solution:

What type of kinematic pair is observed in a belt-pulley system based on the nature of contact?

Higher pair

Lower pair

Wrapping pair

Turning pair

Solution:

In an Otto cycle, the volume at the end of the suction stroke is 72 m³. What is the volume at the start of the expansion stroke?

144 m³

72 m³

36 m³

0 m³

Solution:

In an Otto cycle, the volume at the start of the suction stroke is 12 m³. What will be the volume at the end of the compression stroke?

12 m³

24 m³

6 m³

0 m³

Solution:

Which of the following is an inversion of a double slider crank chain?

Coupling rod of a locomotive

Pendulum pump

Elliptical trammels

Oscillating cylinder engine

Solution:

Which system is responsible for providing the spark at the correct timing in an internal combustion engine?

Diaphragm pump

Battery-coil ignition system

Carburetor

Dynamometer

Solution:

Why do C.I. (Compression Ignition) engines have a higher engine weight compared to S.I. (Spark Ignition) engines?

Higher enthalpy

Higher peak entropy

Higher volume

Higher peak pressure

Solution:

The maximum speed of the flywheel is 1000 rpm. The coefficient of steadiness for the flywheel is 100. The maximum variation of speed for the flywheel is (up to 2 decimal places)

19.8 rpm

39.6 rpm

9.9 rpm

9.95 rpm

Theory-of-machines Questions Set 16:

What is a mechanism with degree of freedom ≤ 0 called?

Solution:

What type of contact is observed between the cam and follower?

Solution:

The angular velocity (in rad/s) of a body rotating at N revolutions per minute (r.p.m.) is

Solution:

What type of kinematic pair is observed in a belt-pulley system based on the nature of contact?

Solution:

In an Otto cycle, the volume at the end of the suction stroke is 72 m³. What is the volume at the start of the expansion stroke?

Solution:

In an Otto cycle, the volume at the start of the suction stroke is 12 m³. What will be the volume at the end of the compression stroke?

Solution:

Which of the following is an inversion of a double slider crank chain?

Solution:

Which system is responsible for providing the spark at the correct timing in an internal combustion engine?

Solution:

Why do C.I. (Compression Ignition) engines have a higher engine weight compared to S.I. (Spark Ignition) engines?

Solution:

The maximum speed of the flywheel is 1000 rpm. The coefficient of steadiness for the flywheel is 100. The maximum variation of speed for the flywheel is (up to 2 decimal places)

Solution:

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