Practice Test: Question Set - 01
1. Which one of the following types of bevel gears is mainly used in automobile drives?
- (A) Straight
tooth bevel gears
- (B) Spiral bevel
gears
- (C) Hypoid gears
- (D) None of the
above
2. Miter gears are
- (A) Spur gears
with same number of teeth
- (B) Helical
gears with same number of teeth
- (C) Bevel
gears with same number of teeth mounted on perpendicular shafts
- (D) Spiral bevel
gears with zero spiral angle
3. Which one of the following is metric helical gear proportion for indexing movement?
- (A) 10/N
- (B) 20/N
- (C) 30/N
- (D) 40/N
4. It is the angle between the pitch cone generator and the root surface of the tooth space. For which bevel gear element is this definition?
- (A) Addendum
angle
- (B) Dedendum
angle
- (C) Pitch cone
angle
- (D) Shaft angle
5. To cut 38 teeth on a helical gear having an angle of 45° which cutter number should be used?
- (A) Cutter
number 1
- (B) Cutter
number 2
- (C) Cutter
number 3
- (D) Cutter
number 4
6. '2.25 m' is given as proportion for straight teeth rack. For which element is this proportion?
- (A) Addendum
- (B) Dedendum
- (C) Whole depth
- (D) Tooth
thickness
7. Which one of the following is NOT the advantage of helical gears?
- (A) Smooth operation
- (B) Lesser load
carrying capacity
- (C) Greater load
carrying capacity
- (D) Noiseless
running
8. When the axes of two shafts are perpendicular and non-intersecting, use
- (A) Spur gears
- (B) Bevel gears
- (C) Worm gears
- (D) Helical gears
9. Which one of the following is the metric helical gear proportion for real module (M)?
- (A) M
- (B) NM
- (C) PD/N
- (D) NM/M
10. To cut straight teeth rack if module (m) = 3 and number of teeth = 20, the length of rack will be ________
- (A) 75 mm
- (B) 135 mm
- (C) 94.2 mm
- (D) 188.4 mm
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