Drilling and Blasting MCQs Questions & Answers | Mining Engineering Page-1 section-4

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10

1.
The maximum length of trailing cable is . . . . . . . .

A. 50 m

B. 90 m

C. 150 m

D. 200 m

Answer & Solution Discuss in Board Save for Later

2.
The breathing bag of self contained breathing apparatus made of . . . . . . . . and divided into . . . . . . . . compartments of proto mark - IV.

A. PVC; 1

B. Volcanised rubber; 2

C. Jute; 3

D. Conven rubber; 3

Answer & Solution Discuss in Board Save for Later

3.
For measuring velocities of air less than 1 m/sec . . . . . . . . is used.

A. Smoke generator

B. Pitot tube

C. Velometer

D. Amemometer

Answer & Solution Discuss in Board Save for Later

4.
The primed cartridge to be used in sinking shaft shall be carried by

A. separate container

B. thick felt bag

C. iron meshed bag

D. in a suitably designed flask

Answer & Solution Discuss in Board Save for Later

5.
Which of the following apparatus is suitable for drilling while approaching water logged underground workings?

A. jack hammer

B. hand held electric drill

C. auger drill

D. burn side boring apparatus

Answer & Solution Discuss in Board Save for Later

6.
With homotropal ventilation the velocity of air relative to coal is lessas compared to that of . . . . . . . .

A. Antitropal

B. Humidity

C. Longwall

D. None

Answer & Solution Discuss in Board Save for Later

7.
Find the height of motive column, when the temperature of upcast and down cast shafts are 40°C and 30°C respectively and shaft is 350 m deep.

A. 9

B. 11

C. 13

D. 15

Answer & Solution Discuss in Board Save for Later

8.
How you reduce the resistance developed by a ventilation duct.

A. Using large diameter duct

B. Using very high length duct

C. Using corrugated duct

D. Increase air flow through duct

Answer & Solution Discuss in Board Save for Later

9.
Reaction between nitric acid and benzene or tolune compounds yeilds.

A. AN

B. Collodin cotton

C. TNT

D. Slurry

Answer & Solution Discuss in Board Save for Later

10.
The high voltage cables from surface to the substation near the pit bottom carries through . . . . . . . .

A. DC shaft

B. UC shaft

C. Auxiliary shaft

D. Air shaft

Answer & Solution Discuss in Board Save for Later

1 2 3 4 5 6 7 8 9 10

Drilling and Blasting MCQs Questions & Answers | Mining Engineering

1. The maximum length of trailing cable is . . . . . . . .

Answer & Solution

2. The breathing bag of self contained breathing apparatus made of . . . . . . . . and divided into . . . . . . . . compartments of proto mark - IV.

Answer & Solution

3. For measuring velocities of air less than 1 m/sec . . . . . . . . is used.

Answer & Solution

4. The primed cartridge to be used in sinking shaft shall be carried by

Answer & Solution

5. Which of the following apparatus is suitable for drilling while approaching water logged underground workings?

Answer & Solution

6. With homotropal ventilation the velocity of air relative to coal is lessas compared to that of . . . . . . . .

Answer & Solution

7. Find the height of motive column, when the temperature of upcast and down cast shafts are 40°C and 30°C respectively and shaft is 350 m deep.

Answer & Solution

8. How you reduce the resistance developed by a ventilation duct.

Answer & Solution

9. Reaction between nitric acid and benzene or tolune compounds yeilds.

Answer & Solution

10. The high voltage cables from surface to the substation near the pit bottom carries through . . . . . . . .

Answer & Solution

Read More Section(Drilling and Blasting)

1.
The maximum length of trailing cable is . . . . . . . .

2.
The breathing bag of self contained breathing apparatus made of . . . . . . . . and divided into . . . . . . . . compartments of proto mark - IV.

3.
For measuring velocities of air less than 1 m/sec . . . . . . . . is used.

4.
The primed cartridge to be used in sinking shaft shall be carried by

5.
Which of the following apparatus is suitable for drilling while approaching water logged underground workings?

6.
With homotropal ventilation the velocity of air relative to coal is lessas compared to that of . . . . . . . .

7.
Find the height of motive column, when the temperature of upcast and down cast shafts are 40°C and 30°C respectively and shaft is 350 m deep.

8.
How you reduce the resistance developed by a ventilation duct.

9.
Reaction between nitric acid and benzene or tolune compounds yeilds.

10.
The high voltage cables from surface to the substation near the pit bottom carries through . . . . . . . .