Free Texas General Pump Installer practice test

10 questions from our verified General Pump Installer bank. Pick an answer to see if you’re right, the correct answer, and the rule it comes from. No sign-up.

Real exam: 60 scored questions110 minutes70% to pass

Question 1 · Texas Law and Rule
Which pumps are exempt from the closed-connection requirement?
The answer is B. Sucker rod pumps, windmills, and hand pumps
The rule exempts sucker rod pumps and windmills, and hand pumps, from the closed-connection requirement.
Source: 16 TAC §76.108(f)
Question 2 · Texas Law and Rule
A required well report must be filed not later than how many days after the work is completed?
The answer is C. 60 days
The 60th day after completion or cessation of the work.
Source: 16 TAC §76.70 (State Well Reports)
Question 3 · Texas Law and Rule
When disinfecting a well, the installer must treat the water in the casing to an average disinfectant residual of what concentration?
The answer is D. 50 mg/l
The rule requires an average disinfectant residual of fifty (50) mg/l for the entire volume of water in the well casing.
Source: 16 TAC §76.108(b)(1) (Technical Requirements — Pump Installation)
Question 4 · Pump Installation
Which problem does a properly installed check valve help prevent?
The answer is A. Backspin, upthrust, and water hammer
Without a check valve, water in the column falls back when the pump stops, causing backspin on restart, upthrust, and damaging water hammer.
Source: Franklin Electric AIM Manual (check valves)
Question 5 · Pump Installation
If the net positive suction head available is less than the pump requires, what happens?
The answer is C. The pump cavitates
Chapter 12 states the rule directly: select a pump whose NPSH required (NPSHR) is lower than the NPSH available (NPSHA) at the site. Cavitation occurs when NPSHR is equal to or greater than NPSHA. Figure 12.17 (p. 569) shows the damage — vapour bubbles form and then violently collapse, eroding the impeller surfaces.
Source: Groundwater and Wells, 3rd Ed., Ch. 12 (cavitation and NPSH, pp. 569-570)
Question 6 · Pump Installation
A waterlogged pressure tank most directly causes which symptom?
The answer is D. The pump starts and stops too often (short cycling)
Goulds lists 'waterlogged tank, faulty air control' as a cause of a pump that starts and stops too often. Without an air cushion the pump satisfies over a tiny volume.
Source: Goulds Service Manual (Troubleshooting — pump starts and stops too often)
Question 7 · Pump Installation
When a pump is coupled to the motor, the pump shaft should move up approximately how much?
The answer is A. 1/4 inch
Franklin's checklist confirms the pump shaft moves up about 1/4 inch when coupled to the motor — verifying correct engagement and end play.
Source: Franklin Electric AIM Manual (Installation Record, item 2.4)
Question 8 · Hydrology/Well Hydraulics
A customer wants more water and asks for a larger pump. What is the correct consideration?
The answer is B. Yield is limited by the aquifer — a larger pump can over-pump the well, break suction, draw sand, and overheat the motor
A well can only deliver what the aquifer will yield. Chapter 12 (p. 556) notes that horsepower demand can rise sharply as flow increases, with potential for overloading the motor when overpumping or running against an open discharge. Over-pumping can also break suction and draw sand. The correct approach is to establish the well's sustainable yield by testing, then size the pump to it.
Source: Groundwater and Wells, 3rd Ed., Ch. 12 (specific speed and overpumping, p. 556); Ch. 6 (aquifer yield and well performance)
Question 9 · Safety
Which OSHA standard covers the control of hazardous energy (lockout/tagout)?
The answer is A. 29 CFR 1910.147
1910.147 requires isolating and locking out energy sources before servicing equipment.
Source: OSHA 29 CFR 1910.147
Question 10 · Water Chemistry
On the pH scale, a value below 7 indicates water that is:
The answer is B. Acidic and potentially corrosive
7 is neutral. Below 7 is acidic and attacks metal casing, pump parts, and fittings; well above 7 tends toward scale.
Source: Groundwater and Wells, 3rd Ed., Ch. 5 (Chemical Properties of Groundwater, p. 137)

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