Objective Question useful for PSUs

Q1-The dynamic viscosity of most gases with rise in gas temperature
1. Drecreases 
2. Doesnot change significantly
3. Increases
4. Decreases as T

Q2- Case hardening is the only method suitable for hardening
1. High alloy steel
2. High speed steel
3. High carbon steel
4. Low carbon steel

Q3-Two forces of 6N and 8N act at right angles to each other, the resultant force will be
1. 10 N
2. 48 N
3. 24 N
4. 14 N

Q4-The motion of shaft in a circular hole is an example of
1. completely constrained motion
2. Simple harmonic motion
3. Successfully constrained motion
4. Incompletely constrained motion

Q5-The part of the piston where gudgeon pin is fixed is called as
1. piston boss
2. skirt
3. land
4. ring groove