5.2 Flashcards
V-belts operates efficiently
at a speed of about:
A. 4,500 C. 4,200
B. 4,400 D. 3,600
a
Which of the following is not operated
in excess of 6000 fpm? (ME BD, OCT. 2002)
A. Herringbone C. Flat leather belt
B. V-belt D. Worm gear
C
Belt slip may take place because of:
A. Driving pulley too small C. Loose load
B. Heavy Belt D. ALL of these
D
The tension ratio of V-belt is:
A. 2 C. 4
B. 3 D. 5
D
As recommended the center to center
distance between sprockets should not be less than
______times the bigger sprocket diameter.
A. 1.5 C. 2.26
B. 1.75 D. 2.59
A
Type of V-belts to be used in driving pulley with speed of
360 rpm and transmitting 5 hp. (ME BD. OCT. 1995)
A. Type A C. Type C
B. Type B D. Type D
B
This effective pull is applied at the rim of the pulley and is
the force that produces work.
A. F1/F2 C. F1 – F2
B. F2/F1 D. F1 + F
C
The tension ratio of a V-belt as a function of tight side
tension and slack side tension is given by
C. F1/F2 C. F1 – F2
D. F2/F1 D. F1 + F2
C
What type of single V-belt to use if the rated power of the
motor is 20 kW?
A. Type A C. Type C
B. Type B D. Type D
D
What type of single V-belt to use if the rated power of the
motor is 5 kW?
A. Type A C. Type C
B. Type B D. Type D
B
The V-belt of E-type cross-sections are generally used in:
A. Automobiles C. Small Engines
B. Medium duty machine D. Heavy duty machine
D
The standard width of a B75 premium quality V-belt is:
A. 1/2 in C. 7/8 in
B. 21/32 in D. 1-1/4 in
B
The standard width of a 5V premium narrow V-belt is:
C. 10 mm C. 14 mm
D. 12 mm D. 16 mm
C
Which belt is best for power transmission?
A. Flat belt C. V-belt
B. Rope D. Rubber
C
The standard angle of the sides of a V-belt isx
:
A. 30° C. 40°
B. 35° D. 45°
C
