Practice Test: Question Set - 02
1. The length of cylinder is taken as,
- (A) Equal
to cylinder diameter
- (B) Equal
to length of stroke
- (C) 1.15
times of stroke length
- (D) 1.5
times length of piston
2. The ratio of side thrust on piston to maximum gas force on piston head is,
- (A) 1
- (B) 0.5
- (C) 0.25
- (D) 0.1
3. For buckling consideration, the end conditions of connecting rod in plane of motion are,
- (A) One
end is free and the other fixed
- (B) Both
ends are hinged
- (C) Both
ends are fixed
- (D) One
end is fixed and the other hinged
4. The condition for connecting rod to be equally strong in plane of motion (XX) and a plane perpendicular to plane of motion (YY) is,
- (A) Ixx = Iyy
- (B) Ixx = 4 Iyy
- (C) 4 Ixx = Iyy
- (D) Ixx = 2 Iyy
5. Automotive crankshafts are made by,
- (A) Casting
process
- (B) Machining
from rolled stock
- (C) Drop
forging process
- (D) Welding
process
6. The area of inlet valve is
- (A) Equal
to the area of exhaust valve
- (B) More
than the area of exhaust valve
- (C) Less
than the area of exhaust valve
- (D) None
of the above
7. The design of piston head is based on,
- (A) Strength
and rigidity considerations
- (B) Bending
and torsional moments
- (C) Buckling
consideration
- (D) Strength
and heat transfer considerations
8. The spring index for valve spring is usually
- (A) 5
- (B) 8
- (C) 12
- (D) 20
9. Push rod is designed on the basis of,
- (A) Tensile
strength
- (B) Compression
strength
- (C) Bending
strength
- (D) Buckling
strength
10. Valve springs have
- (A) Plain
ends
- (B) Plain
and ground ends
- (C) Square
ends
- (D) Square
and ground ends
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