EM 322 QUIZ 3

EM 322 QUIZ 3

University

50 Qs

quiz-placeholder

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EM 322 QUIZ 3

EM 322 QUIZ 3

Assessment

Quiz

Professional Development

University

Practice Problem

Easy

Created by

Elma Rapal

Used 2+ times

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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

These fans are used to produce the general ventilation air current in a mine.

a. auxiliary fans

b. booster fans

c. main fans

d. both a and c

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All are advantages of installing main fans at the surface except:

a. accessibility

b. safety of fans

c. ease of installation

d. efficiency

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this ventilation sysem, the fan inlet is open to the atmosphere and the fan outlet to the mine intake shaft.

a. exhaust system

b. blowing system

c. mine refrigeration system

d. natural draft

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False.  Where there is an increase in area,  there is an increase in static pressure at the expense of the velocity pressure

a. True

b. False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this ventilation system, the fan inlet is open to the mine through the return shaft.

a. Blowing system

b. Exhaust System

c. mine refrigeration system

d. natural draft

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This ventilation system is preferred in Coal mine ventilation

a. exhaust system

b. Forcing System

c. mine refrigeration system

d. natural draft

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This is the airstream to be directed to the surface

a. static air

b. return air

c. intake air

d. exhaust gas

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