3. Human Power

Question 1

The rate of work done by human body.
a. Human work
b. Human Power
c. Human Energy
d. None of the above

Answer 1

b. Human Power

Question 2

The amount of power available in human for useful
work.
a. 0.5 hp
b. 0.25 hp
c. 0.1 hp
d. None of the above

Answer 2

c. 0.1 hp

Question 3

If the average power available in human is 0.1 hp,
how much power a 16-year old person can generate?
a. 0.20 5 hp
b. 0.152 hp
c. 0.115 hp
d. None of the above

Answer 3

c. 0.115 hp

Question 4

The amount of power human can develop from the food
he eats.
a. 0.12 hp
b. 0.25 hp
c. 0.50 hp
d. None of the above

Answer 4

c. 0.50 hp

Question 5

The minimum energy requirement of human.
a. 1,250 cal/day
b. 1,500 cal/day
c. 1,750 cal/day
d. 2,000 cal/day
e. None of the above

Answer 5

d. 2,000 cal/day

Question 6

A person is doing a work for 4 hours, what is the power
developed by that person?
a. 0.09 hp
b. 0.13 hp
c. 0.15 hp
d. None of the above

Answer 6

b. 0.13 hp

Question 7

How much power can a human generate for 8-
hour working period?
a. 0.095 hp
b. 0.103 hp
c. 0.152 hp
d. None of the above

Answer 7

a. 0.095 hp
b. 0.103 hp

Question 8

A ten-hectare farm is to be planted with rice by
broadcasting. If seeding is required to be finished
within one day, how many people would you
recommend to do the job?
a. 3 persons
b. 5 persons
c. 6 persons
d. None of the above

Answer 8

b. 5 persons

Question 9

Manpower requirement in transplanting rice.
a. 15-20 man-days / hectare
b. 20-25 man-days / hectare
c. 25-30 man-days / hectare
d. None of the above

Answer 9

b. 20-25 man-days / hectare

Question 10

The conversion efficiency of human.
a. 10%
b. 15%
c. 20%
d. 25%
e. None of the above

Answer 10

c. 20%

Question 11

The power human can develop by pedaling.
a. 0.27 to 0.53 hp
b. 0.54 to 0.75 hp
c. 0.76 to 1.00 hp
d. None of the above

Answer 11

a. 0.27 to 0.53 hp

Question 12

Which of the following is not a manually-operated
machine?
a. Mortar and pestle
b. Pedal thresher
c. Dibbler
d. None of the above

Answer 12

d. None of the above

Question 13

Human efficiency during hot and during humid
condition ___.
a. increases
b. decreases
c. remains the same
d. None of the above

Answer 13

b. decreases

Question 14

14. Ten hectares of rice farm is to be harvested
    manually in 2 days using sickles (8hr/day). If the
    field efficiency is 80% and the man-hour/hectare for
    harvesting is 60, how many persons will be needed
    to harvest the rice from the 10-hectare farm?
    a. 27 persons
    b. 37 persons
    c. 47 persons
    d. None of the above

Answer 14

c. 47 persons

Question 15

The amount of food energy needed to balance energy
expenditure in order to maintain body size, body
composition and a level of necessary and desirable
physical activity consistent with long-term good health.
a. Food intake
b. Energy balance
c. Energy requirement
d. None of the above

Answer 15

c. Energy requirement

Question 16

The average energy spent in a 24-hour period by an
individual or groups of individuals.
a. Total energy expenditures
b. Average energy expenditure
c. Human energy expenditure
d. None of the above

Answer 16

Total energy expenditures

Question 17

The major advantage of human compared with other
sources of power.
a. Intelligence
b. More power available
c. Longer working time
d. None of the above

Answer 17

a. Intelligence

Question 18

The disadvantage of human power compared
with animals and machines is ___.
a. intelligence
b. low power available
c. All of the above
d. None of the above

Answer 18

b. low power available

Question 19

19.Components of energy requirement of human.
a. Metabolism
b. Metabolic response to food
c. Physical activity
d. Growth
e. All of the above
f. None of the above

Answer 19

e. All of the above

Question 20

20. The indicator of weight adequacy in relation to
    height of human.
    a. Body mass index
    b. Body weight-to-height ratio
    c. Body adequacy ratio
    d. None of the above

Answer 20

a. Body mass index

Question 21

21. A method to measure the daily energy expenditure of human
    based on the relationship of heart rate and oxygen consumption
    and on minute-by-minute monitoring of heat rate.
    a. Heart and oxygen monitoring
    b. Daily energy expenditure monitoring
    c. Heart rate monitoring
    d. None of the above

Answer 21

c. Heart rate monitoring

Question 22

A human-power implement without moving parts that
facilitates mechanical manual operation.
a. Tool
b. Machine
c. Instrument
d. None of the above

Answer 22

a. Tool